openrcforums

Hello, I tried to compile the actual next branch with EXT = FRSKY_SPORT and EXT = MAVLINK but I get errors in the compilation. Is there no support for this telemetry protocols with MEGA2560 board? Or which error can made by myself at the compilation or Makefile change? errors with EXT = FRSKY_SPORT ...

Hello Kilrah, thank you very much! I had this power circuit already in my TX, but it didn't work properly. So I had to make some changes in the code: Because the signal RF_Activated and DSC_Activated are pulled down with a high resistor (100kOhm) they can not pulled pu with the internal pull-up resi...

Hello,

I got my DIY transmitter running, but everytime I have an unknown (for me) sign on my LCD.
Can anyone explain me what this sign want to tell me?
Because it's a DIY transmitter based on the MEGA2560 Arduino board, maybe some signals are not correct?

Thank you very much!

Best regards
olterion

Hello, I forgot to post the necessary changes in "board_mega2560.h" In the section "LCD driver" the following pins have to be declared: // LCD driver #define PORTA_LCD_DAT PORTA #define PORTC_LCD_CTRL PORTC #define OUT_C_LCD_E 7 #define OUT_C_LCD_RnW 6 #define OUT_C_LCD_RS 5 #def...

Hello, I got the board complete running. My fault was to get the wrong branch from github. I got the master branch and this is still old for the MEGA2560 board. Now I have the next branch, which was build with PCB=MEGA2560. To compile this branch it is nessesary to get Python 2.7 and PyQt v.4.11.3 f...

Hello, I try to build my own transmitter with a MEGA2560 Arduino Board. The LCD, sticks and switches are working. Now I want to connect my transmitter to the MEGA2560 Board. But on the PPM output is no signal. I think it's because the display shows always a battery voltage below the "battery lo...

Hello, thank you very much MikeB for the hint! Now I found this site: http://edeca.net/wp/electronics/the-st7565-display-controller/ The is a explanation of the adresses of the ST7565 Controller. With this I was able to write a data converter from the "displayBuf" content to the ST7920 Con...

Hello, I want to build a DIY RC transmitter. I have the joysticks, a lot of switches, pushbuttons and a 128x64 pixel LCD with a ST7920 controller inside. At this moment I have nothing connected to the MEGA2560 except the display. So I decided to try to change the ST7565 driver in the opentx/radio/sr...