Interfacing Sensors With Arduino Using MEP_ROBO UNO Board
Learning basics of adruino interfacing with sensors……..
Here let’s use the basic sensors like LM35 temperature sensor, PIR sensor, LDR, TSOP and Ultrasonic sensors.
Figure 1: Interfacing of Sensors.
Interfacing of LM35 with Arduino
In LM35 interfacing with Arduino, temperature information will be send to the PC using the code/circuit.
Generally, LM35 is a three pin temperature sensor which is used to measure temperature variations as an analog output. The operating range of the sensor is about -55 to 150?C. Connect the output pin of the sensor, to the analog pin (A1) of the MEP_ROBO development board..
Figure 2: LM35
Step1: Procure Materials Required
- MEP_ROBO Board with ATMEGA 328 IC.
- USB Cable.
- Computer with Arduino software.
- Connecting wires(3)
Figure 3: Components Diagram
Step2: Write the program in Arduino UNO IDE.
Step3: Connecting LM35 with the Board
Figure 4: Connection Diagram
- Place the temperature sensor to any of the analog pins A0, A1, A2, and A3.
- Here we are using A0.
- Connect Vcc of the LM35 with the Vcc of the board.
- Connect GND of the sensor with the GND of the board.
- Connect output of sensor with A0 of the board.
Step4: Connect USB cable to the board.
Step5: Download program to the board.
The output is seen through the serial monitor. In Arduino IDE, take Tools----Serial Monitor. Set the baud rate to 9600.