Temperature controller for charcoal or wood smoker.
Controller constantly reads temperature from sensor and adjust chimney damper using attached servo.
- Board - STM32F103C8T6 AKA "Blue Pill"
- Temperature sensor - MAX6675 with type-K thermocouple
- Display - SSD1309
- Servo - any standard RC servo with PWM input and enough force to drive the damper
- Wiring - refer to hw.rs for GPIO pin connections
- Prerequisites:
- rustup
- open-ocd
- GDB (arm-none-eabi-gdb)
- Install ARM target:
rustup target add thumbv7m-none-eabi- Connect STLINK-V2
- Run openocd session in another terminal (must be running for GDB to connect)
# "set CPUID" option needed to flash knockoff board (non-genuine STM32)
openocd -f interface/stlink.cfg -c "set CPUTAPID 0x2ba01477" -f target/stm32f1x.cfg- Flash and run GDB session:
cargo run -r- type "c" to see program running
- ctrl+c and "q" quits GDB
- Display
- Damper with servo
- Overall setup
