Category Archives: Electronics

NXT Frequency counter program update

I added to the program a little feature, and it makes a huge difference with the stability of the output value. Before, it would check CurrentTick, and then let TachoCount count up until CurrentTick was greater than or equal to … Continue reading

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NXT Frequency counter

Sometimes it’s nice to know the frequency of something. You can use an oscilloscope or digital frequency meter (or many other pieces of test equipment), but I don’t have any such equipment that works for the ranges I want. I … Continue reading

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Mindsensors Relay Driver

A couple weeks ago, Deepak from mindsensors sent me a couple of the coming-soon Mindsensor Relay Drivers to beta test (thank you Deepak!). I’ve been working on trying to better understand how they work, and I think I have them … Continue reading

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NXT servo controller

I built a vehicle that only used one RC style servo motor. To get the mindsensors servo controller just to control one servo seemed sort of pointless. I like the challenge of building circuits and programs, so I figured I’d … Continue reading

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New NXT RC Twister 2.0 video

Here is a video my brother and I took yesterday of twister 2.0 This video shows more of it’s abilities, although it doesn’t show nearly all it can do 😉 When we took the video, the drive battery was almost … Continue reading

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NXT high power motor controller

There is no ready-made solution for the NXT to run high power motors, like buggy motors, or multiple NXT motors on one channel. I needed speed and direction control, and more current than the 1A H-Bridges in the NXT can … Continue reading

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NXT RC Twister 2.0

The last twister I made had major issues with the gearing. I broke three gears because of it. I realized that it was time to make a better one; thus twister 2.0 was designed. I didn’t want to gear up … Continue reading

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