Philip Peter has made a somewhat unconventional use of the Open Bench Logic Sniffer.
Recently we suspected that one motor of our hexacopter had been damaged in a crash. Since removing the motor requires almost the complete disassembly of the copter I started thinking of ways to test the motor in place.
In this article he describes a technique he used to measure the rotational speed of the blades of the hexacopter using a red laser as a sending unit and a photodiode and variable resistor connected to the Logic Sniffer adjusted to provide a 1 volt/2 volt dividing line between the photodiode’s dark and light states. He conducted the whole experiment using the stock OLS software jawi.
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