Failsafe RC Motor Shutdown Using ATtiny85 for Radio Loss Protection

Prevent runaway RC vehicles with this failsafe system! Using an ATtiny85 microcontroller and an optocoupler, this project monitors the radio receiver’s LED status to detect signal loss. If the connection drops, the system automatically shuts down the motor via a safety relay, preventing accidents. Ideal for RC cars, robots, and lawnmowers, this simple yet effective solution enhances safety. Includes full schematic and code.      Read more