Circuit diagram of the PIR Motion Sensor Light and Switch based on SB0061 shown here can be used for security or corridor lighting in power saving mode. The 12V DC supply required for the whole ...

Just after the failure, I leaped into the circuit diagram of HC-SR 501 PIR module and found that one end of the LDR pad is connected to ground (0v),where other end is connected to vcc (+3.3v) through ...