Description This 4 channel Infrared Obstacle Avoidance Proximity Sensors Module supports 4 IR transmitter and IR receiver pairs that sends out IR energy and look for reflected IR energy to detect presence of any obstacle in front of the sensor module. The module has on board potentiometer for each channel that lets user adjust detection range. The sensor has very good and stable response even in ambient light or in complete darkness. The sensor module can be interfaced with Arduino, Raspberry Pi or any microcontroller having IO voltage level of 3.3V to 5V. Applications Obstacle avoidance in robots Production counting on assembly lines Presence detection Security systems Features LM393 Comparator based detetction circuit is very stable and accurate On board potentiometer sets obstacle detection range On board Power LED indicator On board Obsatcle Detection LED indicator 3.0MM mounting hole for easy mounting the sensor. Male header for easy connection Good Accuracy: By use of Infra-red LED transmitter the module performs well in Ambient light Technical Specifications Number of channels: 4 Detection angle: 35 ° Operating Voltage: 3.0V – 6.0V Working voltage: DC 3.3V-5V Mounting aperture: M3 screws Detection range: 1mm to 60 CM adjustable, the closer the performance more stable, white reflects the farthest distance. Dimensions Control Board of 42mm * 38mm * 12mm (length * width * height) Sensor Board 25mm * 12mm * 12mm (length * width * height) Output interface: 6 wire interface (1234 to 4 signal output ends, positive power, – for the negative power is ground) The output signal: TTL level (can be directly connected to I/0 microcontroller, infrared light reflected back to the sensor induction, the red indicator light, output low level; no infrared light, the indicator light does not shine, the output high.) Current Consumption: at 3.3V : ~23 mA / channel at 5.0V: ~43 mA / channel Control Board Pinouts Microcontroller Interface VCC: 3.3V-5V power input pin GND: 0V power pin IN1: Digital Output Pin for Sensor1 IN2: Digital Output Pin for Sensor2 IN3: Digital Output Pin for Sensor3 IN4: Digital Output Pin for Sensor4 Sensor Interface VCC: 3.3V-5V power input pin GND: 0V power pin IN1: Digital Output Pin for Sensor1 VCC: 3.3V-5V power input pin GND: 0V power pin IN2: Digital Output Pin for Sensor2 VCC: 3.3V-5V power input pin GND: 0V power pin IN3: Digital Output Pin for Sensor3 VCC: 3.3V-5V power input pin GND: 0V power pin IN4: Digital Output Pin for Sensor4 Documents and Download LM393 Comparator IC Datasheet A useful link on construction and working principle of obstacle avoidance sensor Package Includes 1x 4-Channel Infrared Obstacle Avoidance Proximity Sensors Control Board 4x Transmitter Receiver Modules 12x Female to Female dupont receiver transmitter interfacing cables
