- Build Your Infrared Remote Tester – Circuit Diagram & Parts List
- Build Your Own IR Remote Tester Circuit – 700Hz
- Long Range IR Transmitter Circuit Diagram – 10m+ Range
- Remote-Controlled Firecracker Igniter: Circuit & Design (3.5s)
- Build a Wireless Infrared Hand Switch Circuit – CA3140 Design
- Build Your Own Infrared Remote Control Circuit – 3A Triac Design
- Universal IR Switch Circuit Diagram – Build Your Own!
- Build Your Own IR Remote: 2N2222 Circuit Diagram
- IR Remote Control Tester: Circuit Diagram & Intensity Measurement
- IR Remote Jammer Circuit: Build Your Own Signal Disruptor
Build Your Infrared Remote Tester – Circuit Diagram & Parts List
Description
A straightforward apparatus enabling a swift assessment of standard Infrared Remote Controls can be beneficial for the hobbyist electronics enthusiast, regularly tasked with diagnosing or evaluating these widely used devices. A dependable circuit was developed utilizing a small number of components: the Light Emitting Diode will activate when any of the Remote Control buttons are pressed. The side of the Remote Control containing the Infrared emitting diode(s) must be pointed towards the Phototransistor (Q1) of the examination circuit: the maximum distance should not exceed approximately 20 - 25 centimeters.
Circuit Diagram:
Parts:
- R1 = 470K
- R2 = 47R
- D1 = LED Any Type
- Q1 = Photo Transistor
- Q2 = BC327
- B1 = 3V Battery or 2 AA cell
More about components
Integrated circuits, or ICs, play a crucial role in modern electronics. These compact packages contain numerous interconnected transistors, diodes, and other components, fabricated on a single silicon chip. The BC327 (Q2) is a versatile NPN bipolar junction transistor commonly used in switching and amplification applications. It’s a three-terminal device – Base, Collector, and Emitter – providing gain and current control. A typical BC327 is manufactured using semiconductor fabrication techniques, including photolithography and diffusion, to create the desired electronic pathways. It's important to consider the transistor's specifications, such as its gain (hFE) and current handling capabilities, when designing circuits incorporating it. The ICs are generally more reliable than discrete components and have smaller footprints.
Notes:
- The current drawn by the circuit is less than 1mA when the LED illuminates and 0mA when no signal is detected by the Photo Transistor: consequently, SW1 can be omitted.
- SW1 will be a SPST Toggle or Slider Switch