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Firmware

ESP32-based firmware for driving the split-flap modules over I²C. Built on PlatformIO with a web UI for configuration.

Sections

  • Build & Flash — installing dependencies, building, and uploading to the ESP32.

Supported boards

Environment Processor Tested Boards Dual Display (16 modules)
esp32_wroom ESP32 ESP32 DevKit V1 (ESP-WROOM-32) ✅
esp32_c3 (default) ESP32-C3FN4 Teyleten Robot ESP32-C3-SuperMini, Waveshare ESP32-C3-Zero ❌
esp32_s3 ESP32-S3FH4R2 Waveshare ESP32-S3-Zero1, ESP32-S3 Super Mini1 ❌

The dual display configuration requires two independent I²C peripherals to drive both rows simultaneously. Only the ESP32-WROOM has this capability — the C3 and S3 variants support a single bus and are limited to 8 modules.

  1. Requires manually resetting the board into firmware upload mode by holding BOOT, pressing & releasing RESET, then releasing BOOT prior to upload. ↩↩