The following documents the hardware inside the Devo-F4 transmitter
NOTE: These are from the Devo-7e. they may need to be updated! '*' Indiciates updated values
Pin | Desription |
---|---|
BOOT0 | CON2 |
NRST | Debugger (NRESET) |
Pin | Desription |
---|---|
*0 | 5.8GHz Receiver channel0 pin |
1 | Piezo speaker |
2 | output to 0 to shut off Tx |
3 | power-switch in 'off' position (goes high on 'off') |
*4 | 5.8GHz signal strength |
5 (SPI1_SCK) | SPI Flash, LCD |
6 (SPI1_MISO) | SPI Flash, LCD |
7 (SPI1_MOSI) | SPI Flash, LCD |
*8 | 5.8GHz Receiver channel1 pin |
9 (USART1_TX) | Trainer Rx? |
10 (USART1_RX) | Trainer Tx? |
11 (USBDM) | USB+ |
12 (USBDP) | USB- |
13 (SWDIO) | Debugger SWDIO (TMS) |
14 (SWCLK) | Debugger SWCLK (TCK) |
*15 | 5.8GHz Receiver channel2 pin |
Pin | Desription |
---|---|
0 | LCD Chip Enable |
1 | LCD Backlight |
2 (BOOT1) | SPI Flash Chip-Enable |
*3 | Mix0 Switch |
*4 | Mix2 Switch |
5 | Button Matrix Col 1 |
6 | Button Matrix Col 2 |
7 | Button Matrix Col 3 |
8 | Button Matrix Col 4 |
9 | 5.8GHz Receiver on/off |
10 | USB Enable (enable Low) |
11 | TxModule pin 10 - CYRF6936 Reset |
12 (SPI2_NSS?) | TxModule pin 1 |
13 (SPI2_SCK?) | TxModule pin 3 |
14 (SPI2_MISO?) | TxModule pin 9 |
15 (SPI2_MOSI?) | TxModule pin 7 |
Pin | Desription |
---|---|
0 (ADC_IN_10) | Right Vertical Stick |
1 (ADC_IN_11) | Left Vertical Stick |
2 (ADC_IN_12) | Left Horizontal stick |
3 (ADC_IN_13) | Right Horizontal Stick |
4 (ADC_IN_14) | Battery Voltage |
5 | LCD Data/Command mode |
6 | Button Matrix Row 1 |
7 | Button Matrix Row 2 |
8 | Button Matrix Row 3 |
9 | Button Matrix Row 4 |
10 | FMode2 Switch |
11 | FMode0 Switch |
*12 | Hold Switch |
13 | AIL DR Switch |
14 | Gear Swicth |
*15 | TRN Switch |
Pin | Desription |
---|---|
2 | Haptic vibration motor |
The battery voltage (ADC1_14) is calculated by the formula:
V = 0.0021x + 0.3026
B.5 | B.6 | B.7 | B.8 | |
---|---|---|---|---|
C.6 | L- | DN- | Aileron TL | Throttle TD |
C.7 | R+ | UP+ | Aileron TR | Elevator TD |
C.8 | Ent | Ext | Rudder TL | Throttle TU |
C.9 | NC | NC | Rudder TR | Elevator TU |
TL: Trim Left TR: Trim Right TU: Trim Up TD: Trim down
FCCID: S29 DEVO-F4
Schematic available here courtesy of user Buoncristiani: schemadevof4v2.pdf
see this post