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Introduction: Wanna charge your phone in the apocalypse? Maybe my hand crank generator can help you.
Project 3: How to make a Fingerprint ID Nerf Gun
My initial plans were to have the Arduino on the side with the power-pack and have the fingerprint ID scanner on the left side of the gun so that it can read the thumb print
9g 180° Micro Servo
When finishing reading this tutorial, you will find those very simple devices, principles and technologies can help you build very interesting equipment.
The instrument not just can record steps (and calories) at real time, but show time. What is special is that the format of showing is pointer.
Hardware in need:
Project 6 A Christmas present for cute kid & girl - A Clever Rabbit Hat - an EMG sensor based
Project 8: micro:bit Laser Target
The ambient light sensor sensor detects the intensity of the laser pointer. If it is greater than 400, it will sound the buzzer and the servo will make the target fall and up. Game over when it reaches 10. Press A to reset score to 0.