Inside a $7 Digital Caliper: Capacitive Sensing on a Copper Ruler, and a Battery Drain That Never Sleeps
DiodeGoneWild strips the plastic off a cheap caliper to show how sliding plates measure position — and why the same convenience feature keeps leaving you with a dead readout.
Caliper TeardownCapacitive SensingBattery Drain
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Caliper Teardown
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Inside a $7 Digital Caliper: Capacitive Sensing on a Copper Ruler, and a Battery Drain That Never Sleeps
DiodeGoneWild strips the plastic off a cheap caliper to show how sliding plates measure position — and why the same convenience feature keeps leaving you with a dead readout.
Caliper TeardownCapacitive SensingBattery Drain