The Use of Solar Power in Liquid Spraying Robots


  • Noorly Evalina Universita Muhammadiyah Sumatera Utara
  • Faisal Irsan Pasaribu Universitas Muhammadiyah Sumatera Utara
  • Abdul Azis Hutasuhut Universitas Muhammadiyah Sumatera Utara
  • Cholish Politeknik Negri Medan


Solar Panel, Battery, Voltage Regulator LM317, Robots


Solar power plants are renewable energy needed as a source of energy for electronic equipment, Robots are needed to replace human work. This study discusses robots in charge of spraying liquids and batteries charged by solar panels as a robot energy source. The analysis is carried out by measuring voltage, current, and the power generated by the solar panel, battery, and voltage regulator LM317. The results of this study used a 20 WP solar panel. 12 lithium-ion batteries are used in combination, 4 lithium-ion batteries are connected in series and 3 in parallel so that the desired capacity of 12V/8AH is obtained, and the battery is filled with a solar charge controller circuit regulated by the Arduino ATMega8. The LM317 battery voltage regulator produces direct current as the robot's main energy source. According to the test results, the robot requires 55.1 watts of power and 55.1 watt-hours of energy to function at one o'clock. The LM317 voltage regulator output voltage of 14.44 volts is sent to the battery.


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