Simple sensitivity tester circuit diagram based on infrared remote control

This circuit is a useful device for testing infrared (IR)-based remote control transmitters used in televisions, VCRs, etc. IR motion from the remote control transmitter is sensed by the IR sensor module in the analyzer and its output at pin 2 goes low. So this turns on transistor T1 and causes LED1 to squint. At the same time, the signal beeps at the same rate as the approaching signal from the remote control transmitter. Pressing different buttons on the remote will bring about a unique beat rate, which may change the frequency of the LED eye flashes or the ringer buzzer.

When no signal is detected by the sensor module, the output pin 2 of the sensor goes high, so the transistor T1 is turned off, so the LED1 and signal BZ1 go out. This circuit requires a 5v control power supply which can be obtained from a 9V eliminator and connected to the circuit via a jack.

Capacitor C1 smoothes the DC input, while capacitor C2 suppresses any spikes that occur in the input supply.

Legal crushing of the metal casing will ensure the outflow of electromagnetic waves converted by tube lights and electronic balances etc. (located inside the data transmission of the collector circuit) and repeat the steps demonstrated in step 1 above and note his new score (for example, X2) . He adds this score to his past scores. Player "Y" takes turns using the same method. 4. Split play continues until one of the two players' scores adds up to 100 points or more, and is declared the winner.

A number of players can take part in this entertainment, with everyone having a chance to score points in their own particular round. A multipurpose board can be used to collect circuits. Attach the display cabinet (LED and 7-part display) to the top of the office along with the three switches. The supply voltage of the circuit is 5v. To successfully crush, do not interfere with the work of the circuit. The figure shows the recommended layout of a crate for housing circuits. The 9v DC power source from the eliminator may be plugged into the jack using a banana plug.