lloydi12345
Member
I would like to ask help again on how to solve this problem. I just lost my printed schematic. Can you help me troubleshoot this circuit again?
I placed the two of them in the same breadboard. The input (+) connected on the LM324 was an IR receiver module. I used a transistor symbol because I can't find one IR module on ISIS. Collector as 5v, base as Gnd and Emitter as output. The problem is the IR receiver receives a signal eventhough my IR LED is not present on the 2nd 555 timer circuit.
*I didn't used CV pin since I find it not really necessary so there is no C1 and C2 on the two 555 circuit.
I placed the two of them in the same breadboard. The input (+) connected on the LM324 was an IR receiver module. I used a transistor symbol because I can't find one IR module on ISIS. Collector as 5v, base as Gnd and Emitter as output. The problem is the IR receiver receives a signal eventhough my IR LED is not present on the 2nd 555 timer circuit.
*I didn't used CV pin since I find it not really necessary so there is no C1 and C2 on the two 555 circuit.
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