• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.


  1. D

    Monitor the free fall detection and calculate gravitational force

    I am using the accelerometer to detect the vibration but at the same time, I need to test the free-fall detection using wireless sensor with Arduino https://store.ncd.io/product/mma7660fc-3-axis-orientationmotion-detection-sensor-%C2%B11-5-g-accelerometer-i2c-mini-module/ and perform some...
  2. M

    Optical sensor

    Hi, I am looking at designing a piece of equipment that will reduce the vibration in a small scale RC Helicopter. For this I am looking to measure the phase of the helicopter and the dc motor I will be using as the shaker. To then ensure the motor is 180 degrees out of phase with the helicopter...
  3. M

    helicopter vibration

    Good morning, i am currently attempting a university module looking at reducing vibration in a helicopter. i have access to a "model" puma helicopter that is used to record and change track and balance of the Main and tail rotor blades, i am looking at attaching a tachometer to calculate the...

Latest threads

EE World Online Articles