Arduino Monitor Solar Panel Voltage

Just connect the solar panel output voltage to analog pin of arduino and convert that in digital and display result on lcd or computer.

Arduino monitor solar panel voltage.

The arduino analog input ports accept a maximum voltage of 5v. Therefor the analog signals must be adapted by a circuit to match with these specifications. 230v ac 5v dc power supply module. Once testing is complete and updated post will be made.

Circuit diagram of arduino based digital voltmeter. Voltage analog value resistor factor reference voltage. Since the adc of the microcontroller is coded in 10 bits the resolution of the pv panel module voltage is 0 00489 v 5 1023 and the input voltage of this module must be more than 0 02445 v 0 00489 v 5. For measuring voltage we have to follow the given formula.

If you decide to use a 5v arduino simply add a boost converter after the 3 3v supply amazon model xl6009 dc to dc converter. In your design you can use nanoif you need the extra clock speed or possibly need to attach 5 v peripherals. Hence the output voltage of the pv panel can be formulated as the following equation. There is also a 5 volt arduino pro mini available that runs a 16 mhz clock.

Wire is installed to sample the battery and solar panel voltage. The 5v power supply module provides power to the microcontroller arduino wemos the current sensor acs712 and oled display. The solar voltage monitor will stay connected to the test solar set up for a couple weeks.