Category: Arduino

Flashing BLHeli firmware on DJI Opto 30A ESC’s

Bit more of a technical post – quadcopters (and many other electric rotors and vehicles) use brushless DC motors.  These act as three phase motors and in order to generate the required wavefroms, Electronic Speed Controls (ESC’s) are utilized. DJI OPTO 30A ESC is quite popular for quadcopters and looks like this when you buy…

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Squiggles : a quadruped with attitude

Philip brought along his 3D printed Mini Quadroped (http://www.thingiverse.com/thing:38159) to H4H on Tuesday – it runs on 4x 1.2V NiMH batteries and can autonomously roam the room using ultra-sonic range sensors to avoid collisions.  It uses eight servos controlled by an Arduino Nano, so each leg has two axes of movement (2-DoF)! Ok, so I…

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House4Hack visits Linden High School 2013 Geek Week

House4Hack joined Linden High School in Johannesburg for a day at their 2013 Geek Week. Post invitation from the resident Linden High Computer Class teacher, House4Hack moved into formation to create an interactive day outing which closely resembled lots of geeking out in a flash-mob style. One of the objectives was to foster curiosity under…

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