William At MyBlueRoom
New Member
I want to monitor 24VAC relays from a thermostat. Can I simply put a 47K resistor on the RB4-7 inputs on a 16F8xx series chip? This is done with RS232 and the internal diode clamps keep it between vcc & gnd.
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William At MyBlueRoom said:Can I simply put a 47K resistor on the RB4-7 inputs on a 16F8xx series chip? This is done with RS232 and the internal diode clamps keep it between vcc & gnd.