This toy project builds some kind of electronic start and finish lines to be used with 1:64 scale cars and tracks (a.k.a. Hot Wheels)
- 433 mhz remote control
- RF communication between start/finish lines
- car velocity and finish time indication
- dual mode logic: track mode (finish time only) and circuit mode (lap time and best time)
- false start trigger
- sound effects with passive buzzer
- auto power off
- 2x RF-Nano, resistors, transistors, LEDs (including IR), photodiodes, pushbuttons, passive buzzers, batteries
- 4x8 RGB LED HAT (or similiar addressable LED strip / matrix), 433 mhz remote and receiver for start controller
- LCD1602 with I2C connection for finish controller
Same both for start and finish controllers (the only difference is that LED matrix is connected to start, and LCD is connected to finish)
Arduino sketch is common both for start and finish.
Look at #define inside Settings.h before uploading and comment/uncomment #define DEVICE_TYPE line to load sketch to start or to finish controller
- Arduino code (depends on LCD_AIP31068_I2C_WCHAR library)
- STL files which can be used to 3D print shells. Autodesk Fusion source file is also available