ELECTRONICS
Bluetooth Controlled RC Car Circuit
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CASE ANALYSIS
Scenario
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.
Key decisions
- Use a 7805 regulator to step down 12V to 5V for logic
- Connect HC-05 TX/RX crossed to Arduino RX/TX
- Use L298N for bidirectional motor control
When to reuse this
When designing a Bluetooth-controlled vehicle with separate logic and motor power supplies.
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circuit-bluetooth-controlled-rc-car-circuit-with-arduino-and-hc-05