ESP32 Core

ESP32 Star Core has built-in lithium battery, voltage and temperature measurement, one-click automatic download and burning and other functions. It can drive peripheral modules through different pins such as I2C SPI ADC DAC GPIO.
At present, the whole device consists of PCBA + shell + lithium battery + solar panel. Connect peripherals through TYPE-C male interface to realize different application solutions  
 
. Low power design: Use ultra-low quiescent current LDO and use MCU deep sleep mode to reduce the consumption current to about 10uA. PMOS switch can be used to power peripherals to meet low power consumption requirements.
Solar cell: Because the power consumption of TPS61200DRCR is too high and the 44*26 (2V45mA) solar panel used cannot provide enough current for it to work properly, the solar panel can only be used as a cover and light sensor.
Shell: Use Solidowork2021 Design the exported STL file for 3D printing in
LitronixLithium battery: It is recommended to use a polymer lithium battery of size 402040 or 402540. The general capacity is about (3.7V400mAh) and the board has a built-in TP4054 lithium battery charging circuitNote
 
: PCB process 1.0 board thickness double-layer board component parameters are subject to the schematic diagram. If there are no components, go to Taobao. The relevant resource code is in the attachment. A 
low-power potted plant detection solution that can be constructed with a soil environment sensor Solution link: https://oshwhub.com/FJ956391150/tu-rang-chuan-gan-qi