I want to make a speed meter for my bicycle with a magnet on the front wheel and a reed switch toggled by it. I can attach the reed switch about 4-5 cm away from the magnet. But is the reed switch the best component for this? I feel like the vibration and movement might toggle it even when the magne…

Reed switch for bicycle speed meter

Croutonix May 28, 2017, 3:13pm 3

Like these? 2PCS 3144E Hall Effect Sensor Switch Speed Counting Sensor Magnetic Detect F6 | eBay
They are pretty cheap.
Any drawbacks to using them instead of reed switch?

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