Multiwii is a quadrotor autopilot system (FC firmware) developed by many RC hobbyists around the world. This project uses an Arduino board as a the processor, however it’s been seen to run on other platforms. This…
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What is Magnetometer and Why Calibration is important Magnetometer is simply an electronic compass, it gives readings in X, Y, Z directions, it is used alongside with Gyro and Accelerometer to give the aircraft a reference to…
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Sometimes you might have a broken ESC on your quadcopter or multicopter, and you happen to have no spare ESC of that brand, but you have a similar ESC from another Brand! Can we use…
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I had a problem with my quadcopter being very unstable and occasionally flip on take-off. It is flyable but is very difficult to hover. Someone suggested that I should check the PID settings. However whatever I…
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As we know there are gyro sensors on multicopters, and some of them even have an accelerometer. Multicopter that are equipped with gyros and accelerometers can achieve stabilization requiring little even no control from the…
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When I first started with Multiwii, I was completely lost with all the flight mode names in the GUI. I can roughly figure out or guess some of them, and what they do, but I wasn’t…
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Aerial photography and FPV flying are getting really popular these years among hobbyists. Multicopter is a great platform for these purposes even if you have little or no flying experience. There are some of my personal…
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The MultiWii flight control software has the built-in functionality of using an attached LCD for viewing and adjusting PID settings. That would make tuning PID values so much easier without connecting to the computer and use the…
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What is BJT? BJT (bipolar junction transistor) are widely used an amplifier, oscillator, switch etc. It is a current-driven device (MOSFET is voltage driven), the output current is equal to the input current times a factor which…
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FPV is one of my ultimate goals flying a quadcopter. The quadcopter FPV videos are just so amazing! You need at least a video receiver, transmitter and a camera for the FPV system, and it…
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For many people who aren’t familiar with electronics often struggle to decide whether to use BJT or MOSFET in their projects. In this article I will explain the differences between BJT and MOSFET and help…
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After the arduino connection testing, all the parts seem working fine (IMU, arduino, receiver, ESC and motor). So the next step is to try to do a take off test. I need to build a…