We built a fully self-contained Connect 4 system where a human can play against an AI without any laptop or cloud. Using a Seeed Studio XIAO ESP32-S3, an onboard camera, and a lightweight CNN, the system reads the board and uses a Minimax algorithm with Alpha–Beta pruning to choose the best move, which is shown on an LED board. This demonstrates full AI gameplay running on a single microcontroller.
DaClock is an alarm clock with an integrated automated blinds system. When the set alarm time is reached, a buzzer sounds and a stepper motor drives a 3D-printed pulley to open the blinds, letting natural light into the room. The alarm can only be silenced by scanning an RFID card. At night, a photoresistor detects low light and reverses the motor to close the blinds automatically.