Minimum system for ESP-NOW Device
Minimum system with ESP-32 can be implemented with ESP-NOW protocol. You can use this as keychain for anti-lost wereable device.With RGB and buzzer it can be indicator while your device lost. Range of between device and keychain adjustable from up to 10 meter. ESP-NOW protocol same principle with BLE, which makes it superior ESP-NOW no need device for additional device for make it works. Just with 2 ESP you can use ESP-NOW.
Minimum system for ESP-NOW Device
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