Category Archives: PICAXE

20X2 with Thermistor for NXT

A while ago I got 4 100k thermistors. Because they are 100k, I can’t really use them on the NXT ADC with the built-in 10k pullup. The 20X2 doesn’t have pullups (actually it does have optional pullups on some pins), … Continue reading

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Picaxe 20X2 NXT Volt Meter

I wanted to make a volt meter for the NXT, but it needs a good reference voltage to get accurate results. I currently have an LDO regulator connected to the PICAXE to measure the reference voltage, so that will work. … Continue reading

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Picaxe 20X2 NXT experimenting platform

Recently I’ve been playing with a PICAXE 20X2, and interfacing it with the NXT. I have done this in the past, but this time I made more of an experiential platform. I have lots of breadboard space to expand and … 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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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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