This project shall allow you to power your Nodemcu via a Lithium 18650 Battery (4.2V). Charging the Battery/Accu will be done by a photovoltaic cell or 5V USB micro connector.
The Nodemcu will be used in combination with EASYESP for home automation. I will use the following sensors:
- BME280 - Digital Sensor for Temperature, Humidity and Barometric Pressure
- Capacitive soil moisture sensor that provides an analogue voltage that will be captured by an ADC