esp32-splitflap-rotarycontrol

• Split-Flap Display Prototype Controlled by ESP32 and a Rotary Encoder

• This is custom software for this 3d printed split flap display:

• • https://github.com/Dave19171/split-flap

• Inspired by:

• • https://github.com/scottbez1/splitflap

Libraries

• Due to this issue: me-no-dev/ESPAsyncWebServer#1089
• • Use patched async webserver from here: me-no-dev/ESPAsyncWebServer#1089

Uploading

• Using Arduino IDE v1.8.19 to make LITTLEFS and ESP32 OTA updates a little easier
• • https://randomnerdtutorials.com/esp32-ota-over-the-air-arduino/
• • https://github.com/earlephilhower/mklittlefs
• • • https://randomnerdtutorials.com/install-esp8266-nodemcu-littlefs-arduino/

Wiring Diagram

Stepper Motor Modification

• For the motor to be driven by the A4988 driver you must modify the motor from unipolar to be bipolar.
• • Pop off the blue cover and scrape away the trace from the red wire in the middle