Bluetooth Low Energy module JDY-08 used in Low Energy Solar Fridge controller
Bluetooth Low Energy module used in STM8S103 8-bit microcontroller based controller to use as Ultra Low Energy 12V Solar Fridge from AC Freezer.
Modified sine wave inverter 1000W including remote control interface modular RJ-11 connector.
Energy consumption has been with 60 l Midea freezer on 12 V solar system about 8 Ah/ 24h.
Printed Circuit Board is designed with KiCad tool and STM Visual Studio IDE used to STM8S103 firmware developement.
BLE module used as wireless link to Android application developed on Android Studio.
Graphic User Interface in Android application allows temperature setting, inverter control ,battery voltage show, fridge temperature show and voltage/temperature log graph show.
Link to design files: https://github.com/joukohak/solarfreezer
