GT101 Waterproof Bracelet 24 Hours Heart Rate Monitoring Fitness Tracker Bluetooth Smart Watch for Sport - Black Presenters Through the use of electronic

Through the use of electronic projects we will take you from the level of complete beginner through to having an intermediate set of skills in using the Arduino

the flashlight will blink twice to signal unlock

ATmega325P

7Pcs 5X7CM double-sided PCB board with 432 holes

GT101 Waterproof Bracelet 24 Hours Heart Rate Monitoring Fitness Tracker Bluetooth Smart Watch for Sport - Black Presenters Through the use of electronicMain Features: Bluetooth Synchronization With Bluetooth 4. 1, this smart bracelet is available for smartphones with Bluetooth function Professional 24H continuous Heart Rate Detection Whether you are resting or doing sports, detect your heart rate accurately Intelligent Anti lost Watch will send an alarm after leaving the mobile phone in a certain distance, no need to worry about losing your phone Sport Monitor This smart bracelet can record steps,