In your design you can use nanoif you need the extra clock speed or possibly need to attach 5 v peripherals.
Arduino monitor solar panel voltage.
Hence the output voltage of the pv panel can be formulated as the following equation.
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.
Therefor the analog signals must be adapted by a circuit to match with these specifications.
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.
Circuit diagram of arduino based digital voltmeter.
The arduino analog input ports accept a maximum voltage of 5v.
Arduino energy meter v2 0.
Hello friend welcome back after a long break.
It became very popular on the internet lots.
Given these we must choose a solar panel capable of at least 5 7 v 164 mah and a lithium battery rated at 1044 mah.
We connected two multi meters one in the input and another in the output of the pot and set the value that when the input voltage is 18v the output will be 3v since the nominal output voltage of the solar panel is 18v.
There is also a 5 volt arduino pro mini available that runs a 16 mhz clock.
The lithium ion battery is rated at 2000 mah.
We set the voltage divider with a division factor of 6v.
And suppose if you want to measure up to 10 volts then you have to use the given circuitry.
Earlier i have posted an instructables on arduino energy meter which was mainly designed to monitor the power from the solar panel dc power in my village.
Voltage analog value resistor factor reference voltage.