Solar Tracker Using Arduino And Servo Motor

If you are simply trying this project for fun then a breadboard is perfect.

Solar tracker using arduino and servo motor.

A dummy solar plate is attached in parallel to the axis of servo motor and both the sensors are kept on the dummy solar plate as shown in the figure below. 3 two wires for supply and one wire for pwm to control its positions. Interfacing dual axis solar tracker arduino project using ldr servo motors. 5 to 12 volt power supply.

The servo is controlled through one of the arduino s pwm outputs. The sensors are connected in series with 10 k ohm resistors. This solar tracker system uses the arduino uno board a servomotor 2 ldrs and 2 resistors to rotate the solar panel towards the sun or a source of light. Tact switch button resistors 10k 3 nos.

Similarly connect the gnd pin from the arduino to a second lower horizontal row of the breadboard. Four ldrs and four 100kω resistors are connected in a voltage divider fashion and the output is given to 4 analog input pins of arduino. If you are going to be installing the solar tracker permanently then you may want to solder the resistors and ldrs together so that they cannot come loose. In this project an arduino nano is used which works as a controlling unit.

Arduino solar tracker with servomotor. This solar tracker uses two ldrs to measure the light or the resistance of the ldr changes according to the light. So i ve made a solar tracker using an arduino and servo motor. The embedded software design the embedded software is the piece that will be embedded in the hardware arduino uno to control and monitor the solar tracker test bench.

Ldr 2 nos. The circuit design of solar tracker is simple but setting up the system must be done carefully. Connect 5volt pin from the arduino to the lower horizontal row of the breadboard. The circuit diagram for the arduino based solar tracker using ldr servo motor is given below.

The used servo motors are controlled by the arduino uno board via 3 wire electrical cable as shown in fig. Read servo motor control using arduino in the circuit two ldr light dependent resistors sensors are used to sense the light. The pwm inputs of two servos are given from digital pins 9 and 10 of arduino. Photovoltaic powers the solar tracker no external source needed.

To track the sun i used four ldc sensors and arduino compares the data from them to rotate the panel in the direction with the most sunlight using two dc motors one for each axis and motor driver. It can also charge mobile phone. Extend the 5 volt and gnd rows to the upper horizontal rows of the breadboard respectively. Since ldr is an analogue sensor they are connected to the analog pins a0 and a1 of arduino.