ELECTRONICS
ESP32 Wi-Fi Robot Car with DRV8833 and Ultrasonic
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CASE ANALYSIS
Scenario
A hobbyist builds a Wi-Fi controlled robot car using an ESP32 dev board, a DRV8833 motor driver, and an HC-SR04 ultrasonic sensor for obstacle detection.
Key decisions
- Use a 2S Li-ion battery and 5V buck regulator to power the ESP32 and ultrasonic sensor reliably
- Wire DRV8833 nSLEEP to 3.3V to keep the motor driver enabled
- Connect ultrasonic trigger to GPIO13 and echo to GPIO14 for ranging
When to reuse this
Reuse this netlist when assembling a small DC-motor robot with ESP32 Wi-Fi control and ultrasonic obstacle avoidance.
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circuit-esp32-wi-fi-controlled-robot-car-circuit-with-drv8833-motor-