Category Archives: sensor

Comparing the ADXRS610 and ADXRS642 gyros

Analog Devices recently release new vibration rejection gyros which seemed a perfect fit for use on a micromouse. Since I was using the ADXRS610 on Zeetah V, I temporarily mounted an ADXRS642 to ZV to compare the two.

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Choosing an emitter for micromouse sensors

Most commonly, micromouse reflective sensors use Infra Red LEDs as the emitter component. That is all very well and suits many, or most, phototransistors. the thing is, you cannot easily see where they are pointing and what kind of illumination … Continue reading

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Sensor Alternatives to the TSL262

The TSL262 sensor has been popular with a number of micromouse builders. It is compact, easy to use and results in a low component count. A common alternative is the use of a simple phototransistor in an emitter foloower configuration. … Continue reading

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Measure angular error using front sensors

The front, or forward-facing, sensors on a micromouse have several uses. Apart from detecting the distance to walls ahead and obstacles on one side or another, properly setup forward sensors can be used to measure an angular error with respect … Continue reading

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Front Sensor Replacement

My micromouse, Decimus 2A, has not been behaving well. The most notable problem is that detection of the wall ahead, and the distance to that wall has been erratic. Worse, the problem seems to come and go. For a while … Continue reading

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Easier Wall Sensor Calibration

A while back, I posted a way to make simple reflective wall sensor responses appear linear. After struggling with it for a while, it is apparent that it is over complicated. There is an easier way to get acceptable responses…

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Pointing the sensors

How do you decide where to point the sensors?

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Eliminating the wall sensors on Zeetah V

What are the wall sensor used for? Are they worth it?

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Simpler sensor emitters

Simpler is often a good thing. For the new mouse, I wanted to make the sensor arrangement as simple as possible. One way is to drive the emitters from the battery supply…

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Calibrating Reflective Sensors

By far the most commonly used micromouse sensors are simple reflective types that give an indication of distance by measuring how much light is reflected from the maze wall. While the response is repeatable and related to distance, it is … Continue reading

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