Hi, I am a student working on a project where I am required to control the battery charging via ESP8266, the idea of the project is to charge the battery with solar panel and control it via ESP8266 like changing level or when to stop charging… is there any board which I can use to connect it with ESP8266 and perform above mention task.
Hello @waris and welcome to the forum,
Yes, you will need a battery charger module, here’s a good option:
But you can find others in the Battery Pack Chargers section of the store.
To monitor the voltage level you could use an analog pin of the ESP8266. However, regular 3.7V lithium batteries output a maximum of 4.2V when fully charged, and the ESP8266 GPIOs work at 3.3V. So, you will need to add a voltage divider and for that you will need some resistors.
I found this great tutorial that will definitely help you out with your project
To make it you will also need a 3.3 Voltage Regulator and some capacitors.
I hope this information can help you out, good luck with your project!