Quadrature encoders with the STM32F4

Most commonly, the speed and direction of the motors in a micromouse or other small robot will be read from quadrature encoders connected to the drive train. One of the great things about the STM32F4 processor is that it can read these directly. Quadrature Encoder Signals A quadrature encoder generates…

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Micromouse sensors aligned the easy way

An essential part of setting up a new mouse is the proper alignment of the sensors.  You micromouse sensors must have the emitters pointing exactly where you want them to and the detectors have to be aligned to get the best possible response. A simple paper target and an Infra Red camera can help get this right. (more…)

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Flexible shields for micromouse sensors

Micromouse sensors need shielding to work at their best. Here we are going to show you how to make a simple, flexible light shield for your micromouse sensors that will cut down the effect of ambient light and reduce leakage from the emitter. The problem with micromouse sensors The common…

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Great Online Circuit Simulator Site

Designing electronic circuits takes knowledge and experience. Sooner or later, you have to put your idea to the test. Generally, this means building a prototype. Even with the best circuit simulator software, you ended up with unfriendly or expensive products. Or both. Now you can do a good job with…

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Temperature and Voltage Variation of Ceramic Capacitors

You almost ceratainly have ceramic capacitors in your micromouse or other project. Are you sure you have them properly specified? Are they actually providing the value that you think they should be? This tutorial from Maxim Integrated gives an excellent guide to the ways that you can make sure that…

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