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README.md

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This board is a tool for testing and calibrating a Lionel truck with the Hall Effect tachometer onboard. Use the TachCalibrator firmware. It will send data to MQTT.

Fritzing diagram of Tach Calibrator

Photo of Tach Calibrator protoboard

Photo of protoboard with Wemos D1 Mini

Photo of the Hall Effect sensor and magnets in the truck

Testing out my homemade tach on a powered Lionel truck:

Video of a tach test