RC Car Electronics


This, to some extent, is a continuation of this post, where I replaced the motors and some gears to fix one of my son’s RC cars.

I remove the electronics and replace them completely, including the remote for which I now use a freshly made wireless Wii Nunchuck.

The results are far from impressive in terms of manoeuvrability, but it was really fun to build and I think the handling can still be improved by tweaking the mix between the 2 joystick axes.

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Automotive CAN bus hacking


This 1st video shows the dashboard of a VW Passat B6 2006 being controlled directly by a micro-controller (an old ARM M3 on a LM3S8962 Texas Instruments discovery board) using the automotive CAN bus.

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Electronic Art


 

I had been wanting to do this for such a long time…

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Espruino & MPU6050 & Digital Motion Processing


Espruino Pico

If neither of the 3 terms in the title mean anything to you, then you can stop here, there won’t be any nice video or images in this post 🙂

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Hack a humidifier with an AtTiny


 

This is a refreshingly simple hack on which I spent only a few hours, most of which were actually for installing Atmel Studio to program the AtTiny 🙂

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Self Balancing Robot – V3


Same as the previous post, this is an old project that still doesn’t work properly, but will probably never have the time to fix, so I’ve decided to post the details here, in case I need to refer to them later.

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Self Balancing Robot – V2


DSC06380

This is a quick post to dump some pictures and lessons learneth the hard way, when I tried to build a nicer / better self balancing robot.

All this dates back from October 2014, so more than 1 year ago, but I finally gave up on trying to make this work and wanted to keep all this info/details for my own reference.

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Arduino, when the Servo library is not good enough…


 

I went back to try and finish this ball balancing project, but after some improvements I started to get frustrated by the fact that the servos kept being “jittery”.

Time for my new and shiny servo tester I thought… ! It turned out I was seeing the same problem.

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Optical Wheel Encoder from Infrared Printer Sensor


Quick post about some intermediary work I had to do while working on my new Self Balancing robot.

Once the basics were done and the robot was balancing, I realised that it seemed unstable as it wasn’t staying in place…

The easiest way to deal with this would be an optical encoder for the wheels, that would tell me how much each moves.

Optical sensor mounted

Optical sensor mounted

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Wii Motion plus Gyros on RaspberryPi


Here’s a really quick post about the Wii Motion Plus (again !) and how to make it work with the Raspberry Pi…

I’ve connected this nice little device to an Arduino (obviously ! 🙂 ), to a IOIO board, a FEZ Domino and even to an obscure TI Arm board, the LM3S8962 using CooCox… so it was only right that I connect it to my “new” Raspberry Pi board.

Connecting the Wii Motion Plus to the Raspberry Pi board

Connecting the Wii Motion Plus to the Raspberry Pi board

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