BoardPilotMAX31855 K-type thermocouple breakout with ESP32
Supply 3.3 V
Bus SPI
Measures temperature
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| VIN | Power | 3V3 | |
| GND | Ground | GND | |
| DO | SPI MISO | D19 | Data out (SPI MISO) |
| CS | SPI chip select | D5 | |
| CLK | SPI clock | D18 | |
| T+ | Not wired to the ESP32 | — | Thermocouple + (yellow for K-type) |
| T- | Not wired to the ESP32 | — | Thermocouple - (red for K-type) |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Sources
- Maxim MAX31855 datasheet, Serial interface: SO, CS, SCK (read-only SPI)
- Maxim MAX31855 datasheet, Supply 3.0 to 3.6 V
Try it in 3D in BoardPilot
Related parts
ADXL362 ultra-low-power accelerometer (SPI)ArduCAM Mini 2MP camera (OV2640, SPI)AS5048A magnetic angle encoder (SPI)MAX31856 universal thermocouple amplifierMAX31865 PT100/PT1000 RTD amplifierMAX6675 K-type thermocouple module
Part data: CC BY 4.0, free to reuse with credit to BoardPilot.