Yet another reflow oven controller (YAROC, but we called it c-flow) for c-base. The design is mainly based on parts we had available in c-lab. Note: the project is work in progress, major fuckups may be present in the design files
The design is modular:
- MCU board has a microcontroller, a solid state relay and a header for analog temperature sensor daughterboards. Headers for ISP programming, SPI communication and CP2102 USB-to-USART module are available too. SSR used is S102S02.
- a daughterboard for PT100 sensor has all the analog sensor conditioning circuitry: constant current source, wire resistance elimination, active filter. Based on Microchip App Note AN687
- Arduino compatible
- power LED
- "heater on" LED
- "oven running" LED
- "start/stop" button
- SPI header for serial LCD module
- I2C header
- 4 AUX IOs with pullup and pulldown pads