Category Troubleshooting & Tips

When an ESP32 randomly resets, freezes, or shows a “Guru Meditation Error”, one of the simplest and most effective ways to find the problem is to log progress to the Serial Monitor. The idea is very basic: Add Serial.println(“Line X”);…

I2C is one of the simplest ways to connect multiple sensors and peripherals to your ESP32 using only two wires (SDA and SCL). When debugging a new project, the first thing you should do is scan the I2C bus and…