AlceOSD 0v3b - ArduPilot/alceosd GitHub Wiki
Pinouts
Analog
| Pin | Description | dsPIC pin |
|---|---|---|
| 1 | Analog In 0 | 19 (AN0) |
| 2 | Analog In 1 | 20 (AN1) |
| 3 | GND |
Video Input and Output
| Pin | Description |
|---|---|
| 1 | Video Input |
| 2 | Video Voltage |
| 3 | GND |
| Pin | Description |
|---|---|
| 1 | Video Output |
| 2 | Video Voltage |
| 3 | GND |
NOTE: Video voltage (pin 2 on both connectors) is not used by the OSD. Power board by 5V pin (USART1 or USART3)
USART1
| Pin | Description | dsPIC pin |
|---|---|---|
| 1 | Reset | 18 (/MCLR) |
| 2 | TX | 8 (RP42) |
| 3 | RX | 9 (RP43) |
| 4 | +5V | |
| 5 | GND | |
| 6 | GND | |
| NOTE: Reset, TX and RX pins are 5V tolerant |
USART2
| Pin | Description | dsPIC pin |
|---|---|---|
| 1 | TX | 41 (RP37) |
| 2 | RX | 42 (RP38) |
| 3 | GND | |
| NOTE: TX and RX pins are 5V tolerant |
USART3
| Pin | Description | dsPIC pin |
|---|---|---|
| 1 | GND | |
| 2 | N.C. | |
| 3 | N.C. | |
| 4 | TX | 43 (RP39) |
| 5 | RX | 11 (RPI45) |
| 6 | 5V | |
| NOTES: |
- Pinout is reversed from Pixhawk telemetry connectors (AlceOSD pin1 <-> Pixhawk pin6; AlceOSD pin2 <-> Pixhawk pin5; ...)
- RX pin is 5V tolerant but TX pin is not. However, connecting a 5V device to this port is not a problem. Just make sure you never connect an output pin from other 5V device to the TX pin of the OSD.
ICSP / USART4
| Pin | Description | dsPIC pin |
|---|---|---|
| 1 | Reset | 18 (/MCLR) |
| 2 | 3.3V | |
| 3 | GND | |
| 4 | TX | 24 (RP35) |
| 5 | RX | 23 (RPI34) |
| NOTE: TX and RX pins are 3.3V only |