This project and its circuit are one of the most basic and popular sensor modules. In electronics, this sensor is analogous to human’s visionary senses which can be used to detect an obstacle which is one of its common applications. In robotics, a group of such modules are used so that a robot can follow a line pattern.
Ir Sensor Using Lm358
This circuit is made using the following:
Working Of Ir Proximity Sensor Using Lm358
IR Sensor Using LM358; Fire Alarm Using LM358 ₹ 149.00. Smoke Detector Alarm Circuit ₹ 199.00 ₹ 149.00. IR pair (IR LED and Photodiode) – 1Pc; IC LM358. Because in this circuit, we are using a photo diode, so this type of sensor is called a photo infrared sensor. IR Circuit Diagram The Required Components of Photo Infrared Sensor include IR receiver TSFF5210, Photodiode, 100 ohm resistor, 10k resistor, 10k variable resistor and LM358 IC. IC1- Any OP-Amp IC Will work like LM324, LM358, CA3130 etc. (We are using it as a comparator) R1- 100KΩ Potentiometer/ Variable Resistor. R2- 100Ω - 1KΩ. L1- Infra-Red LED (IR LED)(IR Transmitter) L2- Infra-Red Receiver(IR Photo-Diode)(IR Sensor) L3- Normal LED (Any color, Color doesn't really matter) B1- 6 To 12 Volts DC. 2 days ago LM358 IC’s pins 8 and 4 should connect to the VCC and the ground. To work the circuit as a light sensor, connect LM358’s pin 1 to one of Arduino’s digital I/O pins. The circuit will output as HIGH when light is detected and LOW when it’s dark. To use a dark sensor instead, connect LM358 ‘s pin 7 of to one of Arduino’s digital I/O pins. Infra-Red Proximity Sensor Using LM358. By ElectroMaker958 in Circuits Electronics. Download Favorite. Introduction: Infra-Red Proximity Sensor Using LM358. By ElectroMaker958 ElectroMaker Follow. More by the author: This is an instructable about making of an IR Proximity sensor.
2. IR Transmitter and Receiver Pair
4. Variable Resistors
The transmitter part of the sensor project is an Infrared (IR) Led which transmits continuous IR rays to be received by an IR receiver. The output of the receiver varies depending upon its reception of IR rays. Since this variation cannot be analyzed as such, therefore this output can be fed to a comparator. Here operational amplifier (op-amp) of LM 339 is used as comparator.
When the IR receiver does not receive signal the potential at the inverting input goes higher than that that at non-inverting input of the comparator (LM 339). Thus the output of the comparator goes low and the LED does not glow .When the IR receiver receives signal the potential at the inverting input goes low. Thus the output of the comparator (LM 339) goes high and the LED starts glowing. Resistor R1 (100), R2 (10k) and R3 (330 ) are used to ensure that minimum 10 mA current passes through the IR LED, photodiode and normal LED, respectively. Resistor VR2 (preset=5k) is used to adjust the output. Resistor VR1 (preset=10k) is used to set the sensitivity of the circuit. Read more about IR sensor here.
Ir Sensor Module Using Lm358