Thread: 3 wire proximity switch help
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06-10-2015 #18
Are you powering up the BoB from the USB input or a separate power supply? The reason I ask is that USB supplies a limited current and you might not have enough power to work the BoB and more than 1 resistor. You may remember that I recommended that you did not use the USB port on the computer to power the BoB !
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