•  
  •  

A simple Remote control Tester

Here is a handy gadget for test- ing of infrared (IR) based re- mote control transmitters used for TVs and VCRs etc. The IR signals from a remote control transmitter are sensed by the IR sensor module in the tester and its output at pin 2 goes low. This in turn switches on transistor T1 and causes LED1 to blink. At the same time, the buzzer beeps at the same rate as the incoming signals from the remote control transmitter. The pressing of different buttons on the remote control will result in different pulse rates which would change the rate at which the LED blinks or the buzzer beeps. When no signal is sensed by the sensor module, output pin 2 of the sensor goes high and, as a result, transistor T1 switches off and hence LED1 and buzzer BZ1 go off. This circuit requires 5V regulated power supply which can be obtained from 9V eliminator and connected to the circuit through a jack. Capacitor C1 smoothes DC input while capacitor C2 suppresses any sudden spikes appearing in the input supply. Here, a plastic moulded sensor has been used so that it can easily stick out from a cut in the metal box in which it is housed. It requires less space. Proper grounding of the metal case will ensure that the electromagnetic emissions which are produced by tube-lights and electronic ballasts etc (which lie within the bandwidth of receiver circuit) are effectively grounded and do not interfere with the functioning of the circuit. The proposed layout of the box containing the circuit is shown in the figure. The 9-volt DC supply from the eliminator can be fed into the jack using a banana-type plug.
Tech. Editor?s note: In fact, the complete gadget can be assembled in the eliminator?s housing itself and a cut can be made in its body for exposing the IR module?s sensor part.

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like


NEW Raspberry Pi 4 Compute Module CM4 2GB RAM 8GB eMMC CM4002008 🔥✅SHIP NOW✅🔥 picture

NEW Raspberry Pi 4 Compute Module CM4 2GB RAM 8GB eMMC CM4002008 🔥✅SHIP NOW✅🔥

$89.99



Greenlee 746 - Ram-Hydraulic Knockout, with 5 Knockouts, Slugbusters picture

Greenlee 746 - Ram-Hydraulic Knockout, with 5 Knockouts, Slugbusters

$144.99



CM4004016 Raspberry Pi 4 Compute Module CM4 4GB RAM 16GB eMMC Without Wifi picture

CM4004016 Raspberry Pi 4 Compute Module CM4 4GB RAM 16GB eMMC Without Wifi

$87.82



Eastwood Pro Former 90 Degree Hydraulic RAM Stainless Steel Tubing Bender picture

Eastwood Pro Former 90 Degree Hydraulic RAM Stainless Steel Tubing Bender

$619.99



30 Ton Hydraulic Cylinder Ram Hollow Jack Single Acting 4

30 Ton Hydraulic Cylinder Ram Hollow Jack Single Acting 4" 100mm Stroke

$139.99



GOODWAY RAM 4 CHILLER TUBE CLEANER picture

GOODWAY RAM 4 CHILLER TUBE CLEANER

$1150.00



Dual ended hydraulic ram 2.5

Dual ended hydraulic ram 2.5" X 1.5" X 10" cylinder orbital valve steering steer

$269.99



1/2Ton Spreader Hydraulic Jaw Ram Half Coupler 1/4

1/2Ton Spreader Hydraulic Jaw Ram Half Coupler 1/4" NPT PORTA POWER KIT TOOLS

$28.50



GREENLEE HYDAULIC RAM 746 , FAST SHIPPING  picture

GREENLEE HYDAULIC RAM 746 , FAST SHIPPING

$195.90



Raspberry Pi Compute Module 4 WiFi 2GB RAM 16GB eMMC - CM4102016 picture

Raspberry Pi Compute Module 4 WiFi 2GB RAM 16GB eMMC - CM4102016

$99.99