シナリオ
Build a smartphone-controlled RC car using Bluetooth. The Arduino receives commands from an HC-05 module and drives two DC motors via an L298N H-bridge.
この図に含まれるもの
図の背後にある意思決定を読み解く。
01
Use a 7805 regulator to step down 12V to 5V for logic
02
Connect HC-05 TX/RX crossed to Arduino RX/TX
03
Use L298N for bidirectional motor control
When designing a Bluetooth-controlled vehicle with separate logic and motor power supplies.