Rust ESP32-C3 BME280

Example of reading the BME280 sensor on an ESP32-C3 using Rust

Hardware:

• ESP32-C3 microcontroller
• BME280 sensor
• Breadboard
• Jump wires
• USB-A to Micro-B cable

Step 1: attach the ESP32-C3 to the breadboard (with its headers).

Step 2: attach the BME280 to the breadboard (with its headers).

Step 3: using the jump wires, connect the ESP32-C3 to the BME280:

• 3V3 to VIN
• GND to GND
• GPIO 2 to SDA
• GPIO 3 to SCL

Note: you can use any available GPIO pins for SDL and SCL, but remember to change the code accordingly.

Step 4: connect the USB cable to your computer or laptop.

Software:

Step 1: follow these instructions to setup the development environment.

Step 2: Execute cargo run on the command line (to build, flash, and monitor). Note: on Linux, you may have to fix a permission issue.

If the universe conspires in your favor, you should see an output like this:

I (409) rust_esp32_bme280: Successfully initialized BME280 device
I (2529) rust_esp32_bme280: Relative Humidity = 69%
I (2529) rust_esp32_bme280: Temperature = 25°C
I (2529) rust_esp32_bme280: Pressure = 101698 Pa

Let me know if I skipped any steps.