ESP32-WROOM-32 Burn Fixture Test Board

Place the ESP32-WROOM-32 module into the board's socket, ensuring correct orientation. Connect a USB-to-serial adapter to the designated TX, RX, EN, and GPIO0 pins. Hold the GPIO0 pin low, pulse the EN pin, then release GPIO0 to enter bootloader mode. Use esptool.py or Arduino IDE to upload your compiled firmware binary through the serial connection.

The LEDs provide visual feedback for signal activity on each pin during testing. They help verify that the module is outputting correct logic levels, responding to commands, or toggling pins as expected. This is crucial for functional validation in a manufacturing or debugging environment to quickly identify faulty modules or connection issues.

While primarily a test fixture, it can serve as a minimal development system. It provides access to all module pins and includes power regulation. You would need to supply 5V or 3.3V to the board's power pins and connect an external USB-to-serial converter for programming and serial communication, as it lacks an integrated USB-to-UART bridge.