openrcforums

[SOLVED] I hope I Disconnected the external compass, also leaving JP1 cut on the APM 3.1 the compass gave the impression it was working (onboard compass enabled in planner v2) but when running the handy Debug Console and performing a live calibration all values for X, Y & Z were Zero, this prove...

Hi, I have an APM 3.1 mini and there seems to be an issue (or is there?) with the onboard compass remaining enabled even when JP1 has been cut to disable it, I am using a NEO7M with onboard compass from hobbyking and the compass on that doesn't seem to be working as it should, could this be due to c...

Hi all, I have a problem on the 9XR board, I have installed tactile pushbuttons in place of the conductive pad ones and also swapped out all 6 x 200R resistors that are in series for 1k ones, this was done as I saw some suggestion that putting 1k resistors in series would help when it comes to the M...

I watch with much interest as I have an Arduino Due already with the ATSAM3X8E etc and was wondering myself if this will work ok with openTX/er9X, I was going to try and work out what goes where in repect of gimbals, switches, SD Reader, bluetooth, speech, telemetry & ERC12864-4 display etc, I a...

Part nos are always on the top. But several manufacturers nowadays grind the top side of components precisely to prevent identification and reverse engineering. Sent via mobile Thankyou Kilrah......yes I understand that totally, I just wanted to try and understand the circuit a little better and pe...

Hi Everyone, I am trying to identify this IC from a UDI transmitter, I don't recognise the manufacturer logo and upon searching for the IC number & logo I come up with nothing, does anyone recognise it and if possible a link to the datasheet please. I think the chip manufacturer could be Nuvoton...

Hi All, I have 6 x Gartt 20A ESC's for my hexacopter and wanted to flash SimonK to these but reading up a little on Simon Kirby firmware it seems to make quite some difference in which MOSFETS are used to drive the motors and I don't particularly want to burn out the ESC's! the esc's look very simil...

Thankyou once again Mike, much appreciated.

Hi All, I recently removed U6 on the Turnigy 9XR to properly trace the PCB so I could read the circuit with a little more clarity, would I be right in assuming I can leave U6 off the board without any ill effect as I dont intend to use the futaba socket or buddy box with the transmitter, is it ok to...

Link provided in first post at the bottom....... hope the link works?....

I have just realised the diagram is not very viewable, I am working on providing a link for a PDF file.........

Removed due to error.

Thanks Mike once again, looking a little closer at the 4051 I can now see, late night & old age creeping up I guess. So theoretically could the 4051 could be ommitted too? I will be using the FrSky telemetry mod evenually but there's a long way to go before this happens, its keeping me busy thou...

Hi All, I am new to OpenRC and curently working on tracing the 9XR PCB to a schematic diagram but I have hit a little bit of a stubling block as I dont actually have the full 9XR, only the main PCB, I am about 98% of the way to completion but need to know where 2 wires are routed before I finish the...

Hi, I have embarked on drawing a circuit diagram from tracing the 9XR PCB as I have never been able to find it online, I am 90% there ;-) and by tracing tracks and components noticed a fault in the PCB manufacture, one of the pad's of C43 on the P033A_B version of the board is not connected at all, ...