How do I measure the electrical parameters of my solar panels?

To measure the electrical parameters, we’ll use the ACS758 current sensor for accurate current readings and a voltage divider circuit for voltage measurements. Additionally, we’ll incorporate the DS18B20 temperature sensor to monitor the temperature of the solar panels or other system components.

How to measure solar panel temperature?

Well, it is rather interesting as solar panels are generally exposed to the heat environment as it is exposed to direct sunlight and for obvious reasons. The best way to measure solar panel temperature is by using a flat surface temperature sensor. It is also suggested to use a K type thermocouple placed directly in the solar panel.

How to measure solar panel voltage?

The solar panel voltage is sensed by a voltage divider network consists of two resistors R1=47k and R2=6.8k. The output from the R1and R2 is connected to ESP32 analog pin GPIO pin 34. The output from the voltage divider is smoothed out by using a ceramic capacitor C1. Voltage Measurement :

What is a solar schematic diagram?

The schematic diagram typically starts with the solar panels, which are the main source of the system’s power. The panels convert sunlight into electricity through the use of photovoltaic cells. The diagram shows how the panels are connected in series or parallel to form an array, allowing for maximum energy production.

How can I monitor my solar PV system?

Optionally, you can also add an OLED display to visualize the data in real-time. This project not only offers a cost-effective solution for monitoring your solar PV system but also provides a fantastic learning experience for those interested in electronics, solar energy, and programming.

How to calculate solar panel voltage using a voltage divider?

by using a voltage divider we step down the actual voltage. //for that reason we multiply the 6 with avg voltage to get the actual voltage of the solar panel. solar_volt *= 6; // convert the value to resistance temp_avg = 4095 / temp_avg - 1; temp_avg = SERIESRESISTOR / temp_avg; //Serial.print("Thermistor resistance ");