Has anybody found out what triggers desk mode in the pogo pin dock? I am looking into replicating the functionality without spending 50+ dollars on the original. Also, does anybody have any good photos of the guts of the pogo dock?
Thanks,
Chris
so, after some digging about, it looks like the docking mode is set by the middle pin.
from digging about in the sources, I have found board-tuna-pogo.c which is the file that configures a GPIO pin to be used for the pogo functionality.
It looks like when first connected to a dock, the phone sends a wake up pulse of 100mS, then waits for the dock to respond with a similar pulse back to the phone.
The duration of the pulse is what sets the dock mode.
Here are the times from the sources(times are in mS):
Code:
#define POGO_ID_CARDOCK 100
#define POGO_ID_DESKDOCK 200
Going to try a couple of things to test this on my real phone
how would you get the dock to send a pulse back?
Probably with a microcontroller, in my case
silverchris said:
Probably with a microcontroller, in my case
Click to expand...
Click to collapse
Please let us know if you find a way to make it work, I'm not too good with electronics, but i'm no stranger to a soldering iron. I would LOVE to be able to modify my existing car dock to power it with AC charge capabilities.
Those of us that have built our own car pogo docks are already AC charging. Any of the ROM+kernels with fast charge override will do it. You also need to ensure your 12V source puts out over 500 milliamps. Placing an NFC tag in the dock can perform all the dock shifting functions. See here or here.
You could probably program an ATTiny flashed with Arduino code to transmit the appropriate response. An 8Pin DIP can be hidden pretty easily and runs on 5vdc. You could even include a car/desk mode toggle, for whatever reason.
subvertz said:
Those of us that have built our own car pogo docks are already AC charging. Any of the ROM+kernels with fast charge override will do it. You also need to ensure your 12V source puts out over 500 milliamps. Placing an NFC tag in the dock can perform all the dock shifting functions. See here or here.
Click to expand...
Click to collapse
the problem with this is that I would no longer be running stock and the ota updates would fail to apply until I flashed back the stock kernel
Sent from my Galaxy Nexus
So it looks like the code I was looking at was out of date. The new code is similar but is slightly more complex, allowing for charge current and audio device connection to be transferred from the dock to the phone.
I so far have accidentally put the phone in car dock mode. But I have yet to repeat that.
silverchris said:
So it looks like the code I was looking at was out of date. The new code is similar but is slightly more complex, allowing for charge current and audio device connection to be transferred from the dock to the phone.
I so far have accidentally put the phone in car dock mode. But I have yet to repeat that.
Click to expand...
Click to collapse
I believe this is the current board-tuna-pogo.c file. From what I can tell the phone sends out a 100ms wake up pulse then waits for three responses.
Code:
/* The below constants are in milliseconds */
#define POGO_WAKE_PERIOD 100
#define POGO_ID_PERIOD_TIMEOUT 750
#define POGO_ID_DESKDOCK 50
#define POGO_ID_CARDOCK 100
#define POGO_ID_CHARGER 50
#define POGO_ID_USB 100
#define POGO_ID_AUDIO 50
#define POGO_ID_NO_AUDIO 100
#define POGO_ENTER_SPDIF_WAIT_PERIOD 100
#define POGO_ID_PERIOD_TOLERANCE 20
#define POGO_DET_DEBOUNCE 80
The first response pulse determines if its a DESKDOCK or CARDOCK , the second response pulse is for AC Fast charging or USB charging , and the third response pulse is for whether there is audio out or not.
ya, thats the one I am working off of now. Still haven't gotten the phone to respond though. My phone keeps retrying the wake up pulse over and over again. Not sure if my timings are just off, or if I may have damaged the input on the phone(I hope not...)
ok, so here is how it works
The phone expects two pulses back from the dock. The space between the two pulses is also counted.
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(The unreadable yellow words are: "Yellow is the wake pulse from phone")
That image has the break down.
So for dock type, there are two durations:
50mS for a Deskdock
100mS for a Cardock
For charge types:
50mS for AC Charging
100mS for USB Charging(Doesn't put the phone in a fastcharge state)
and lastly, Audio connection:
50mS that audio output is enabled from dock
100mS that audio output is disabled on the dock.
The signalling level is 1.8V, you should not exceed the 1.8V signalling level on the middle pin, because you may damage your phone.
I ended up using a transistor to shift the level up for my microcontroller, and a resistor divider network to bring it back down.
Now I just need to build the part that holds the phone....
Can you share what what you used for a mirocontroller and/or a schematic and perhaps a code example?
Ya, give me a little bit to bang it out in eagle, and I will also upload the code for the microcontroller. I am using a way overkill dspic30f3014, because I have it on hand.
silverchris said:
Ya, give me a little bit to bang it out in eagle, and I will also upload the code for the microcontroller. I am using a way overkill dspic30f3014, because I have it on hand.
Click to expand...
Click to collapse
Also maybe provide some info for the more layman people to follow?
Sent from my Galaxy Nexus
silverchris said:
Ya, give me a little bit to bang it out in eagle, and I will also upload the code for the microcontroller. I am using a way overkill dspic30f3014, because I have it on hand.
Click to expand...
Click to collapse
Yeah just a bit overkill. I was thinking an ATtiny or the like would do.
Schematic(Didn't bother with the power sections...)
The transistor provides the level shifting from 1.8V to 5V, but also inverts the signal, so keep that in mind when reading the code.
My proto typed board:
Code:
#include <p30f3014.h>
#include <InCap.h>
//config
_FOSC(CSW_FSCM_OFF & FRC);
_FWDT(WDT_OFF); //Turn off the Watch-Dog Timer.
_FBORPOR(MCLR_DIS & PWRT_OFF); //Enable MCLR reset pin and turn off the
//power-up timers.
_FGS(CODE_PROT_OFF); //Disable Code Protection
#define FOSC 7370000LL // clock-frequecy in Hz with suffix LL (64-bit-long), eg. 32000000LL for 32MHz
#define FCY (FOSC/4) // MCU is running at FCY MIPS
#define delay_us(x) __delay32(((x*FCY)/1000000L)) // delays x us
#define delay_ms(x) __delay32(((x*FCY)/1000L)) // delays x ms
#define __DELAY_H 1
#include <libpic30.h>
void __attribute__((__interrupt__)) _IC1Interrupt(void)
{
IFS0bits.IC1IF = 0;
CloseCapture1();
delay_ms(2);
PORTDbits.RD2 = 1;
delay_ms(50); //Dock Type Delay, 50mS for desk, 100mS for car
PORTDbits.RD2 = 0;
delay_ms(50); //Charge type delay, 50mS for High current, 100mS for low
PORTDbits.RD2 = 1;
delay_ms(100); //Audio Connection delay, 50mS for connected, 100mS for disconnected
PORTDbits.RD2 = 0;
delay_ms(600);
ConfigIntCapture1(IC_INT_PRIOR_1 & IC_INT_ON);
T3CON = 0x8000;
OpenCapture1(IC_IDLE_STOP & IC_TIMER3_SRC & IC_INT_1CAPTURE & IC_EVERY_RISE_EDGE);
Nop();
}
//main loop
int main(void)
{
/* Enable Timer1 Interrupt and Priority to '1' */
ConfigIntCapture1(IC_INT_PRIOR_1 & IC_INT_ON);
T3CON = 0x8000; /* Timer 3 On */
/* Configure the InputCapture in stop in idle mode, Timer
3 as source, interrupt on capture 1, I/C on every fall
edge */
OpenCapture1(IC_IDLE_STOP & IC_TIMER3_SRC & IC_INT_1CAPTURE & IC_EVERY_RISE_EDGE);
long count = 0;
//Set up Clock
//Loop forever
TRISBbits.TRISB0 = 0;
TRISDbits.TRISD2 = 0;
while(1)
{
count++;
if(count < 200000){
PORTBbits.RB0 = 1;
}
if(count > 200000){
PORTBbits.RB0 = 0;
}
if(count == 400000){
count = 0;
}
}
}
I am making use of the dsPICs input capture to interrupt on the falling edge of the wake pulse(We detect the rising edge on the pic pin because of it being inverted.) We then toggle RD2, first high for 50mS then low for 50mS then back high for 100mS. This signals the phone that the dock is desk dock, with high current charging, and that the audio output is not connected.
If you want the Microchip MPLAB project I can also put it up somewere.
My recommendations for this project would be to use a 1.8V microcontroller to avoid all the level shifting.
silverchris said:
I am making use of the dsPICs input capture to interrupt on the falling edge of the wake pulse(We detect the rising edge on the pic pin because of it being inverted.) We then toggle RD2, first high for 50mS then low for 50mS then back high for 100mS. This signals the phone that the dock is desk dock, with high current charging, and that the audio output is not connected.
Click to expand...
Click to collapse
How could we get SPDIF out of there too? After signaling POGO_ID_AUDIO, does SPDIF just start to flow? Not sure of the signaling voltage levels for coax SPDIF either...
--Bill
pdxbill said:
How could we get SPDIF out of there too? After signaling POGO_ID_AUDIO, does SPDIF just start to flow? Not sure of the signaling voltage levels for coax SPDIF either...
--Bill
Click to expand...
Click to collapse
It does look like it is outputting data, I don't have fast enough equipment at my disposal to see if it is true SPDIF data, but all the code seems to call it that. If it is just SPDIF data then you should just need to shift it to the correct voltage level, and feed it to a dac
silverchris said:
It does look like it is outputting data, I don't have fast enough equipment at my disposal to see if it is true SPDIF data, but all the code seems to call it that. If it is just SPDIF data then you should just need to shift it to the correct voltage level, and feed it to a dac
Click to expand...
Click to collapse
Do you have an A/V receiver or similar with a coax digital in? If so, give it a try!
--Bill
Related
Now I wasn't ever the type of guy to have spare batteries for my electronic devices because I always just kept a power bank in my bag for a quick charge. Also, the good thing is that I didn't have to turn off my device, remove the case, remove the cover, replace the battery, put it back together and then wait for a reboot.
I travel a lot. Different cities, lots of plane rides, layovers at airports (sometimes those charging stations are crowded and you always have those people that set there the ENTIRE time) or not enough plugs in your hotel room for all your devices.
I've always used Ravpower power banks because they're sturdy, good capacity and reliable. Best of all they have top notch customer service! They called me once after I bought a powerbank just to make sure everything was good with the device and everything was working as I expected.
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First the dual output Ravpower 14000mah w/ led.
Part Number RP-PB13
Item Weight 10.2 ounces
Product Dimensions 4.8 x 0.8 x 3.2 inches
Two outputs:
1) 5v/1amp
2)5v/2amps
I've tried every electronic I have ranging from Galaxy s3, Nexus 7 2013, Nexus 10, Ipad 2, Ipad retina, Iphone 5, Clip+, Colorfly c3, Tralucent T1 amp, Arrow 4g amp digital cameras, ipods you name it it charged it. It can charge two devices at the same time thats the great thing about it.
What it comes with:
2 coiled usb adapter cables with a standard usb on one end and adapter end to fit all the other fittings for devices. The included fitting are
- 1 x Micro USB Connector
- 1 x Samsung 30pin Connector: Galaxy Tab, Galaxy Tab 2,Galaxy Note
- 1 x Mini USB Connector : some cell phone, MP3, MP4, digital camera, and other with mini USB slot digital devices
- 1 x Nokia DC 2.0 Connector: Nokia cell phone with DC 2.0 port
It charges via a micro usb port and it takes about 8 hours to go from completely drained to full charged based on 3 cycles that I've tested. Also, it has a great slow discharge rate when its just on stand by and not charging anything. So it can sit for days - weeks and keep its charge.
To start charging a device you simply can use the supplied usb cables or ones that came with your device (mp3 player, phone or tablet) plug it in, press the power button and voila! A nifty feature is the auto shutoff when you disconnect the device so it isn't wasting its own charge. This is a great feature to conserve energy.
There are indicator lights that light up when the power button is pressed to check its charge.
1-light = <25% charge
2-lights = 25-50% charge
3-lights = 50-75% charge
4-lights = 75-100% charge
Next up is the
Ravpower Extreme 15000mah (triple output)
Part Number RP-PB11
Item Weight 13.4 ounces
Product Dimensions 5.9 x 0.9 x 3.2 inches
Item model number RP-PB11
Size 15000mAh
Color Black
Three outputs:
1) 5v/1amp
2)5v/2amps
3) DC output from 9v-12v
This thing is a BEAST. It can charge up to 3 devices and 1 being netbook.
It is larger but the benifits of it are amazing. It can also charge all of the devices like other powerbank but it has a 3rd output for netbooks/laptops/camcorders/gps.
It has all the different fitting for the usb ports.
- 1 x Micro USB Connector
- 1 x Samsung 30pin Connector: Galaxy Tab, Galaxy Tab 2,Galaxy Note
- 1 x Mini USB Connector : some cell phone, MP3, MP4, digital camera, and other with mini USB slot digital devices
- 1 x Nokia DC 2.0 Connector: Nokia cell phone with DC 2.0 port
but it also has different plug ends for different laptops/netbooks (see above picture at the top left) for the 9v-12v output.
The 3rd output has a switch to choose between 9v or 12v from the 3rd output.
Like the other powerbank it has the auto shutoff feature when not connected to anything. The discharge rate of this is even better/slower when not charging anything compared to the first one.
Unlike the first one, this has a dedicated wall adapter that uses a laptop style plug to charge it. It charges A LOT FASTER than the other one. This charges from completely discharged to fully charged in 4-5 hrs.
Build Quality:
The buld quality on both is amazing. Nothing is loose, creaking or flimsy. Completely solid to the feel of it.
looks promising
dxboyz6146 said:
looks promising
Click to expand...
Click to collapse
thanks! worked great when I needed a quick recharge from playing ingress
Thanks for sharing.
That 15000mAh looks awesome, and it's great to see that power banks (even in insane capacities) are becoming so affordable.
Must fight... the urge... to buy things... I don't need. :silly:
Thanks for the splendid review.
Is it rechargeable or do you need to buy a new one when it's empty?
Sent from my Nexus 7 (2013) using Tapatalk 4
Muikkuman said:
Is it rechargeable or do you need to buy a new one when it's empty?
Sent from my Nexus 7 (2013) using Tapatalk 4
Click to expand...
Click to collapse
Both of these units are rechargeable.
user602 said:
Both of these units are rechargeable.
Click to expand...
Click to collapse
Awesome. Maybe I'll get one later.
Sent from my Nexus 7 (2013) using Tapatalk 4
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Doosl Bluetooth Music Receiver
As most of us do, we use to listen music when we are in our cars, home or rooms, and most of us always finish using the AUX cable connected to our smartphone. This device comes here just to make everything easier and help us getting a much better way to listen music and don´t leave the phone near our sound system because if not we can´t hear our own music.
Using bluetooth devices for this things is very good since we can connect different devices for streaming music and in a very easy way, since this device has not bluetooth password and will let us connect very fast.
The specifications of this device are:
* Bluetooth Version: 4.1
* Bluetooth Range: Up to 30 feet
* Dimensions: 2.0*1.0*0.4 inches
* Power Supply: inner 250mAh Li-Battery charging via Micro USB cable
* Operation time: up to 16 hours(built-in battery) music playback
* Compatibility: car stereos, home stereos/speakers, headphones etc. by 3.5mm stereo inlet socket.
Now I will show you the content of this package, that is very small, and includes all the necessary things for the most comfortable use.
The first thing you see when you open the box is the device, and a little 3.5mm two-side cable that will allow you to connect the device wherever you want. Also the box includes an instruction guide, warranty and a USB cable for charging the device. We can say that we get everything we need inside this little box, and that´s a great point, since we will not need to spend any extra money to get the basic usability of this device.
The device itself includes a very big Play Button that will act as our Turn On/Connect/Turn Off button, which has a LED around the play button which shows us if our device is connected, turned on or searching for a device. Also in terms of connections, the device includes a Micro USB port and the 3.5mm port.
Here I let you see all the pictures about the device and all the components:
Now I am going to speak about the good and the bad points of this device after use it for more than a week.
GOOD POINTS
* Very light device
* Really small
* Very good quality sound
* Sound is loud
* Battery is good optimized
* Very easy to configure and fast connecting
* Really easy to use thanked to the LED
BAD POINTS
* Sometimes you are not more far away than 30 feet and the device stops playing the music or distorts.
Now is time to speak about the price of this device. I have to say for the use I give it on the car and on the hotel´s room I´m staying now or some places where I go with friends, the price is affordable and the device is worth the money you need to pay to get it The actual price of this device is $14.99 when it was $41 before so I really recommend to get it now that it is on sale.
Here I give you the link for you get the device: Mod Edit by @Darth : Selling site link removed.
Don´t worry if the description says it has Bluetooth 4.0, it is just an error and the device, as you can see on pictures has Bluetooth 4.1
Also here I give you the link for the complete album of pictures I took to this device so you can have a better look to the product: ALBUM
Wish you liked it!
Looks nice,how about the range?
Great review, I will be looking to purchase one for on the go
meneses01 said:
Looks nice,how about the range?
Click to expand...
Click to collapse
What exactly do you mean with the range? If you are asking about the Bluetooth range you already have all the information in the review
herna said:
What exactly do you mean with the range? If you are asking about the Bluetooth range you already have all the information in the review
Click to expand...
Click to collapse
Thanks! That's what i'd like to confirm.Got it now.
This seems like a really interesting device, being so small and easy to carry around it would be perfect for the car especially for phone calls and etc. I gotta maybe order one and check it out, did you notice any other issues so far?
xSunny said:
This seems like a really interesting device, being so small and easy to carry around it would be perfect for the car especially for phone calls and etc. I gotta maybe order one and check it out, did you notice any other issues so far?
Click to expand...
Click to collapse
I deleted the battery one since it seems I was not using a good charger, so the charging time is correct for what it offers.
No, I did not see any other issue. And in your case, for the car is perfect. I would say this is a car's related device that can be given different uses outside a car
The Doosl DSER 102 Bluetooth Receiver is one of the most portable bluetooth devices I had. it's a nice fashionable sleek looking device, its very easy to pair simply hold the play button for a couple of seconds and wait for it to blink then grab your smartphone and it will detect the Doosl DSER 102 and just pair it.
The Great thing about this device it comes with an adapter, although I wish the adapt is a cable type so I can still extend it in case the socket of the audio plug doesn't have enough room space. But that is just minor.
The Quality is superb and it fits on any audio devices. although battery life is quite short but still enough for some long hours of non-stop music. :good:
I know that thread is not new, but I can't find out answer for my question about this product, is it possible to skip song by double click play button?? I am using android phone, sometimes iphone
Can this be used as a transmitter from an ipod that doesnt have bluetooth to a set of blutooth headphones?
Andy-j-b said:
Can this be used as a transmitter from an ipod that doesnt have bluetooth to a set of blutooth headphones?
Click to expand...
Click to collapse
Hi Andy!
Actually not, this is not the use that can be given to this device. It just exports audio transmitted via Bluetooth or 3.5mm jack way. That reverse Bluetooth function is not available.
Have a nice week.
Does it support earphones with 4 pole 3.5 mm jack ?? Can i use the inbuilt mic of my earphones for calls through this device ??
Liztek Bluetooth music receiver is the best choice for the car and it has a good battery backup more then 8hr
DBPOWER® 300A Peak 8000mAh Portable Car Jump Starter
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Product Detail :
DBPOWER® 300A Peak 8000mAh Portable Car Jump Starter
Model: DJS40
Colour Option :Red or Yellow
Car Voltage: 12V
USB power Output: 5V /2.1A
Voltage :5V/2.1 A
Starting Current :150 A
Peak Current :300 A
Life Span :1000
Battery : 8000 mAh
Working Tempertature: 10°C~60° C
Price : £29.99
Click to expand...
Click to collapse
What do you get inisde the box?
1x DBPOWER DJS40 Portable Jump Starter
1x Crocodile Clips
1x Android USB Line
Warranty card and Car Start guide and info
Power Bank On Action:
Product Feature:
A must have for every car!
Make sure you and your loved ones can get home when stranded. This will jump start your 2.5L gas engine up to 20 times on a single charge.
3 Modes LED Light
It has 3 modes LED light (high, strobe and SOS), It's an emergency life saver when you go camping , picnic, outdoor adventure or investigation.
Cool Design
The rugged appearance of bold color. Blue power LED indicator flashed on the surface, make it looks so cool.
Portable USB Charger
It charges cellphones, tablets, kindles, anything with a USB port and then some. Charge your device together anywhere anytime.
Super Slim
Unlike traditional bulky jump starter packs, it's small enough to store in your glovebox and light enough to pack in your bag. Slim enough to charge your device as a power bank. Small enough to hold as an iPhone 6.
Longest Warranty on Amazon
At DBPOWER, we provide 3 year warranty and provide friendly, easy-to-reach support.
Click to expand...
Click to collapse
Code:
For Optimal Use:
[LIST][*]Charge the jump starter at least once every 4 months to avoid shortening its lifespan.
[*]Compatible with 2.5L and lower gas engines.
[*]Recharge your vehicle's battery as soon as possible after jump starting.[/LIST]
ATTENTION:
[LIST][*]If less than 25% charged, it may not be able to start your engine.
[*]Do not connect the positive and negative polarity together when it's power on[/COLOR][/LIST]
Pro and Con
Pro
High quality designee with matt finish
Fits on pocket
High power capacity for the price
Fast charging ports quickly dispense power
Convenient built-in flashlight
Small and durable form factor
Small But very powerful
Car Jump Start
Con:
Only one USB Port
My Review :
I got this power bank for £29.99 from amazon and i think its worth every single penny. And I really like the high quality build of this power bank with matt finish. It charge my phone in 1 hour 45 minute from 0 to 100(S6 ) and This power bank’s high power capacity makes it great for charging multiple devices, especially considering its USB charging speed 2.1A output.And it allows me to charge my phone 3 time from 0 to 100.
The first thing you notice about this unit is it’s size ,weight and it cool designee . Believe me at this point I thought there is no way this device roughly the size of a smart phone could possibly jump starter my car. I've always used a heavy, bulky and cumbersome 18kg jump starter/battery pack, so it's hard to believe something measuring just 18 x 8.5 x 4.5cm and weighing 617g (vs 18kg!) can perform the same role - but it does!! I tested this unit on a standard car battery AND a van battery and both started perfectly ON ONE CHARGE!!
I've now used a few of these compact jump starters, been impressed by the performance of them all and they have each started our 1.6 Citroen Berlingo, 2.0 Diesel Renault Laguna and 1.4 petrol Megane. Of them all, however, this one seems to be the best, most powerful and it's the only one to include a red warning lamp to indicate a hazard - essential for roadside breakdowns.
Click to expand...
Click to collapse
Overall this is a great unit, completely fit for purpose and i Highly Recommend!!
For More Review Click Here
And Just for Fun I did this and I was very surprise and shocked (Burned my Eyebrow lol )with result:
Link to purchase:
US :http://www.amazon.com/DBPOWER-8000mAh-Portable-Starter-Battery/dp/B013UJ2JCE
UK:http://www.amazon.co.uk/gp/product/B013UBRZKS?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
IF you live in Diffrent Country Just search "DBPOWER® 300A Peak" Should come up with purchase Link
:good:great review
AllMaybe Dual USB Wall Chargers - Standard (EU2-ST) and Quick Charge (EU2)
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Unboxing
Since i got both variants of the charger, this will be an unified review with detailed comparisions.
Photos Order: Standard variant on the left, Quick Charge variant on the right.
Compared to the desktop charging station reviewed a while ago, this new wall charger doesn't come with many accessories: 1x User Manual with a nice specs sheet, 1x Warranty Card and the Charger (of course). No USB Cables included.
Both models share the same chassis, only the color is different: Black for the Standard variant and White for the Quick Charge variant. It feels solid and there are no annoying glossy parts that can get dirty and scratched really easily.
On one side, there is the LCD screen (more details in the next paragraph) covered by a plastic surface. This surface doesn't look 100% new even after removing the protective film, and is also easy to scratch, so be careful with it (of course this doesn't mean that all units face the same issue, but it is still worth to be reported).
On the side opposite to the power plug (that is foldable), there are 2x USB Ports (with a small marking above each port, "QC 3.0" or "2.4A" depending on the model) and a button required to switch the measurement between each port.
As regards the size, it is probably the most compact dual-usb wall charger i have ever tried, just 62.4x55.0x2.82mm (same for both models) with a weight of 87g for the Standard model and 101g for the Quick Charge model. Of course the latter weights more since it is the most powerful.
Efficiency and Power Meter
Since i am mad when it comes to power efficiency and real output power, i got a crazy USB tester some weeks ago to stress all chargers and cables i own to the max. Of course both of these chargers will receive the same treatment. ^^
NOTE: In order to make sure that the built-in power meter is accurate, each test has been made using also my reliable high-quality USB tester.
As you can easily notice, the screen shows the USB port currently selected with voltage output, current output and the amount of total current drawn since its connection to the socket. Also, it features a nice blue backlight that can be dimmed by long-pressing the button, definetely a plus compared to standard chargers.
Starting from the no-load test (on idle), the voltage appears to be quite stable, maybe higher than usual for the standard variant, but still OK to comply with USB standards.
Stressing both chargers to the maximum rated specs (5V/2.4A for the standard variant and 5V/3A for the Quick Charge variant), the result is quite impressive.
The Quick Charge variant reached a voltage of 5.15V under 3A of load, and the Standard variant reached 5.21V under 2.4A of load. Excellent results, definitely able to handle high resistance (high AWG) USB cables.
Considering the excellent result i thought...what about stressing each charger to the max? Well, since the Quick Charge variant is already maxed out (don't want to go over 3A for safety reasons), i did this test only with the standard variant, by increasing the load over 2.4A. The maximum it can reach without tripping the overload protection is ~2.78A while keeping the same voltage of 5.21V!
A test dedicated to the QC 3.0 variant is, of course, the test made using a Quick Charge capable device connected to it. Both my smartphone (LeEco Le 2) and power bank (iVoler 10000mAh) managed to use the Quick Charge capabilities of the charger, no compatibility issues noticed even with other devices.
As regards the noise level, i wasn't able to hear any buzzling noise (or high-pitched sound) even while doing the extreme test so i can confirm that high quality components have been used.
Conclusions
It is nice to see that AllMaybe followed user feedbacks and tried to provide one of the most complete wall charger i have ever seen. I am not sure whether the idea of placing a power meter is unique or not, but it is really useful and reduces the risks to connect a device with a poor USB cable, that would result in unstable battery charging or, even worse, permanent damage to the cable or device connected.
Honestly, i am not able to find any serious issue with any of these chargers. Based on the user's needs, it is possible to choose the variant required with or without Quick Charge, and the power output is just perfect. Maybe the only thing i would appreciate with next models is the inclusion of at least one USB Cable (Micro-USB + Type-C, 2-in-1 variant), and why not, a multi-usb charging station featuring the same power meter.
So, do i recommend them? Yes, with no doubts. Just choose the one that fits more your requirements, even though the Quick Charge variant is always the best choice, being future-proof .
Pros:
- Excellent Power Output
- Useful and Reliable Power Meter
- Overload Protection
- Quick Charge support (for the EU2 model)
Cons:
- No EU plug variant available
- Easy to scratch LCD plastic surface
Rating: 9
Packaging and Accessories: 7
Design and Materials: 10
Performance and Efficiency: 10
Price: 9 (based on Amazon price)
You can find full-res images (I know, Quality isn't excellent) here: https://imgur.com/a/XaRlV
Official Product Page: http://www.allmaybe.com/products_detail/productId=46.html (EU2-ST Standard) & http://www.allmaybe.com/products_detail/productId=44.html (EU2 - QC 3.0)
You can buy it on many online shops. Official, and authorized, Retailers are listed in the AllMaybe website.
So I've just received a Bluetooth adapter from UGREEN for review purposes. No strings attached no nothing - 'just write something about it' kind of a deal - which I dig.
Being a huge nerd has its perks. I enjoy surrounding myself with tech that makes my everyday life a bit more enjoyable.
For bluetooth streaming, my everyday driver are the MDR-100ABN h.ear on headphones from Sony.
Once I go running or at the gym or in any environment that involves faster-than-walking pace, I switch to my all time darling, the Elecom LBT-PAR500 receiver which securely stays attached on clothes.
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So where does the UGREEN Bluetooth Audio Receiver fit in?Well that's easy - It's made to nicely sit on your desk or in your car and hook on to your sound system or dashboard. It's designed that way.
The nicest feature it has is the user experience. The reason I'm not using my sound system with my bluetooth receiver is because it's a hassle to plug it in, turn it on first and so on.
The UGREEN receiver turns on the moment it's plugged into an USB port - but not due to the lack of battery - it has one which lasts around 7 hours of playback - 8 advertised and the playback time also depends on the output volume, used codec, etc. I find this extremely useful while sitting hooked in the car. As soon as you turn the key, it will flash it's light and be ready for paring/connecting.
Design wise, it's bulky yet modern - nothing too fancy. One big button on top, a light, and the I/O in the back. It has no microphone tho - so no calls can be made/received on it - it does not utilize hands-free profiles so an incoming/outgoing call will be heard only the phone. It's probably for the best since I personally can't stand loudspeaker calls.
Again, it's a device that should be plugged in and forgotten. The auto-pairing mode once on and the auto-power on when fed to a powered usb port makes it excellent for a car. Once you disconnect from it, it automatically powers off after 5 minutes of inactivity. Personally I like to have it hooked to the sound system with power supplied from the PC - so when I turn on the PC, it'll automatically be ready.
The audio quality and transmission range are as good as you'd expect them to be in 2018 so there isn't any obvious difference. The advertised bluetooth class is 4.1 with EDR (enhanced data rate) should have a transfer rate of 24 Mbps or higher - wish I knew the available bluetooth codecs. It uses AVRCP and A2DP profiles. But it's 2018 - most of the bluetooth adapters sound pretty CD/Studio quality like.
As my impressions have been presented, I'll be switching to a Pro / Con list as it follows.
PROs:
Great price/value ratio - 16$ on Amazon;
Solid build quality - there's also a rubber ring on the back to keep it from slipping;
Easy to pair and connect - great for car installments;
Long battery life and one button for ease of use;
Whilst it is no amplifier, it's louder than the average phone 3.5 jack output;
RCA and 3.5mm connectivity is a plus - they can be used simultaneously;
Lightweight and portable - if need arises.
CONs
It's a bit too light - hence the rubber ring on the bottom;
The package usb micro-usb arresting hooks are a bit too tightly clawed in the device - exercise care when removing the cable - not really a con, more of a caution;
I wish the status light was on the button ring instead of on the side of the device;
Lack of loudspeaker capabilities - I don't need it but it's nice to have;
Lack of player controls.
To conclude, it's a great device for its price. Perfect for a car or for adding bluetooth connectivity to home sound systems. As I said in the beginning - it makes connected life a bit easier.
I'd like to thank UGREEN for this device :silly:. You can find more about them and their products on https://www.ugreen.com/ and you can learn more about the device here or see their listing on Amazon here
Have a good one,
Sebastian
Hi Sebastian,
I was feeling curious if I could change some config settings of this bluetooth device. I read that Ugreen 3044 works using a CSR chip from Qualcomm, so can be "easily" configured via an UART connection to the chip. The reconfiguration work is undergoing, so until I will get some results I will post here my updates.
Anyway, if you want to open the case, I wish you good luck, because I partially broken some small tightening "things", I think they made this either unbreakable or unrepairable. Here are some photos from inside the box, featuring the CSR8635 chip.
Stefan,