A tutorial about the HC-SR04 Ultrasonic sensor, how to use it with arduino, and how it could be used for Drone obstacle avoidance and landing.
Accelerometers are used in a lot of different type of electronics. Such as: Phones, Bouncy balls, Drones, fitness trackers, Cars, etc. Here we learn with an arduino nano how to work with an Accelerometer.
What does an accelerometer do? Tinee9 has a number of accelerometer arduino instructables to help you understand what they do and how to work with Tinee9’s accelerometer module.