Table of Contents

Devo 8 Hardware Connections

The following documents the hardware inside the Devo-8 transmitter

STM32 Connections

Pin Desription
BOOT0 CON2
NRST Debugger (NRESET)

GPIOA

Pin Desription
1 Buzzer
2 output to 0 to shut off Tx???
3 power-switch in 'off' position (goes high on 'off')
5 (SPI1_SCK) SPI Flash, TSC2008
6 (SPI1_MISO) SPI Flash, TSC2008
7 (SPI1_MOSI) SPI Flash, TSC2008
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)

GPIOB

Pin Desription
0 TSC2008 Chip-Enable
1 LCD Module (Backlight control?)
2 (BOOT1) SPI Flash Chip-Enable
5 TSC2008 Pin 15 Pen/Irq
6 Button Matrix Col 1
7 Button Matrix Col 2
8 Button Matrix Col 3
9 Button Matrix Col 4
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

GPIOC

Pin Desription
0 (ADC_IN_10) Elevator Stick
1 (ADC_IN_11) Rudder Stick
2 (ADC_IN_12) Aileron Stick
3 (ADC_IN_13) Throttle Stick
4 (ADC_IN_14) Battery Voltage
6 Gear Switch
7 Elevator D/R Switch
8 Rudder D/R Switch
9 FMode 0 Switch
10 FMode 2 Switch
11 Aileron D/R Switch
12 Mix 0 Switch
13 Mix 2 Switch
14 Charging (Active Low)
15 Powered by Outlet (Active Low)

GPIOD

Pin Desription
0-1 LCD Module
4-5 LCD Module
7-11 LCD Module
14-15 LCD Module

GPIOE

Pin Desription
2 Button Matrix Row 1
3 Button Matrix Row 2
4 Button Matrix Row 3
5 Button Matrix Row 4
6 Button Matrix Row 5
7-15 LCD Module

GPIOF



Button Matrix

B.6 B.7 B.8 B.9
E.2 L- DN- NC Elevator TD
E.3 R+ UP+ Top Right TD Throttle TU
E.4 Ent Ext Top Right TU Elevator TU
E.5 Aileron TR Rudder TL Top Left TU NC
E.6 Aileron TL Rudder TR Top Left TD Throttle TD

TL: Trim Left TR: Trim Right TU: Trim Up TD: Trim down

FCC Report

FCCID: S29 DEVO-8