I found that the serial port (and therefore the pinout of the connector) is not compatible with earlier HTC devices (especially the handshake lines). Did anyone encounter problems with connector compatibility too?
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I'm currently using a Samsung MITs-M400 PDA-phone which runs the Korean edition of Pocket PC 2002 Phone Edition. From the 19-pin connector on the bottom of the unit, the battery charge and USB connecton pins have been determined after cracking open the cradle and some 3rd-party data cables for this device, but the serial port pins are still elusive. Samsung does not intend to release any specifications relating to the port (but then again they don't even release SDK for the internal camcorder and TV on the device, so we're used to that), so I'll have to try finding out the hard way. Trouble is, there is hardly any device on the market that uses this port. Is there still a way to determine which pins are assigned to serial connection? I'd appreciate any help.
Use a program that opens the port (after killing ActiveSync) and try to figure out which pins are high impedance by hooking a 10k resistor to ground from the tip of your multimeter. Anything that measures 5v under these conditions is an output that is driven high. Now hook the end of the resistor to 5v instead of ground, and repeat measurements. Any pin that is now 0v is an output that is driven low. Remaining pins are either inputs or non-connected pins. Experiment from there and you will find it.
Alright, thanks for your input.
I found that the serial port (and therefore the pinout of the connector) on Blue Angel is not compatible with earlier HTC devices (especially the handshake lines). Did anyone encounter problems with connector compatibility too?
I would like to connect my Universal to a flight instrument that supplies serial output (glider vario with GPS, altitude e.t.c. information).
I have seen RS232 cabels with converter to USB, but my question is - will this work or do I need a driver for my Universal?
Has anyeone tried this with succes, and if so, what was the solution.
Best regards
Steen
I forgot to add, that I would prefere a solution where the converter is not build into a RS232 plug, as the serial input would com from a Hirose p/n HR10A-7P-6P plug. Therefor I wil have to make my own cable - at least on the serial input side.
Serial connection from Universal
I don't think you can use the USB connector output and convert it to a serial formal as the equipment needs the ability to behave as a server for the serial connection, whereas it is only configured to act as a host (i.e when connected to a PC). (terminology may be incorrect ...!)
What you could obtain is a Bluetooth Serial port .. i know you didn't want the 9 pin plug, but you could easily make yourself a connector -and it would work wireless.
Charlie Grillo
Hi,
need to know what type of mini USB is on the circuit ? how many pins?
thanks
All mini USB connectors should be created equal, usb (including usb mini) its what is called an idustry standard, thay have 5 pins total, same shape and size always, I wouldn't even suspect that some connector maker could took off any of the pins out, what surely should be, is that the connector must be a PCB mounting type, it would be a better idea to open the PDA, take off the connector and bring it with you when you buy the new one.
One easy solution -that I think someone in the forum has already mentioned- would be to use another device's mini usb conector (such as a broken bluetooth headset or a memory multicard reader).
hopefully tommorow i'll be able 2 post photo
Does this exist? I'm about to purchase an HTC P3300 and I would like to use a car diagnostic software call "VagCheck". To use it, you need a cable to connect from the the PPC to the cars OBDII port. These cables only come for iPaq ppc connectors to OBDII, serial to OBDII, and USB to OBDII. These cables are expensive and I already have a serial to OBDII cable. So I'm looking for some kind of way to connect the cable to the P3300 via the mini USB connector but I know there will need to be some drivers involved.
Does anyone know if there's an adapter from mini USB to regular USB or Serial for PPC's with drivers?
BTW, there is a more expensive alternative. There's a bluetooth connector for the car that plugs into the OBDII and you can just connect via BT. But that is the most expensive set-up.
USB to serial
I guess you can use USB to serial converter, which is inexpensive.
Thread moved.
AFAIK the P3300 is USB client only, which means it can only be used as a client device to a PC. USB host capability is required to work with USB peripherals such as a USB to serial adapter.
So basically what you are trying to do won't work with the P3300 unfortunately.
The only way around this problem would be to get a bluetooth-serial module which would connect to the serial - OBDII unit and allow the P3300 to connect to it via bluetooth.
A bit silly I know, this is the result of most PDA manufacturers choosing not to equip their devices with USB host capability.
Antzzz et al,
You're right.. The current HTC range are all only USB Client.. So you can't connect an HID device, serial adaptor etc.. There IS rumoured to be a set of serial pins on the non-standard Mini-USB style connector on the D810 device range - however, we've never seen a cable that breaks out (or explains the RS232 pins)..
Does anyone have a full pinout of the extended connector??? This might be a project for further investigation.... ?
There are a few industrial RS232 to Bluetooth adaptors, such as :
http://store.pressdigital.com.au/industrial-bluetooth-serial-adaptor-rs232-p-5092.html
But they're expensive as a rule.. You may want to grab a Bluetooth OBDII interface.. (or another cheap PDA with RS232 like a cheap low-end iPAQ hx2490).
Let us know if you stumble across the RS232 pinout on the extended D810 connector.
Cheers
Andy
www.pressdigital.com.au
Support Team
i am having the same problem. i have a xda orbit with some software on it to adjust my air suspension on my car. i have tried connecting the cable supplied with it to a serial lead and then the obd11 lead but i could not get it to work. just found a Original O2 XDA Serial Sync Cable . ordered today from
http://l8shop.net/products/Original-O2-XDA-Serial-Sync-Cable-3280.asp
if you have any success in getting yours to work i would appreciate any help.