Simple program to drive SSD1306 display on ESP32

Prerequisites

• ESPFlash
• rust-xtensa
• GCC toolchain for xtensa
• SSD1306 connected via I2C

Configuration

I2C pins are hard coded to GPIO4 (SCL) and GPIO5 (SDA) for now. This matches the Wemos LOLIN32 board with OLED display.

Eg: https://www.aliexpress.com/item/33060366158.html

To change them, modify the setup_i2c() parameters.

Build

. setenv
cargo espflash --release <serial port of ESP32>

Result