Hardware Components
It is the most integrated solution for Wi-Fi + Bluetooth applications in the industry with less than 10 external components. ESP32 integrates the antenna switch, RF balun, power amplifier, low noise receiver amplifier, filters and power management modules. As such, the entire solution occupies minimal Printed Circuit Board (PCB) area. For more details, ESP32 Data Sheet.pdf
It is an analog soil mositure levels sensor by capacitive sensing rather than resistive sensing. It is made of corrosion resistant materal which gives it an excellent service life. For more details, SEN0193 Data Sheet.pdf
It is a combined digital, humidity, pressure, and temperature sensor based on proving sensing principles. The sensor module is house in an extremly compatc metal lid. Its small dimensions and its low power consumption allow the implementation in battery driven devices such as handsets. For more details, BME280 Data Sheet.pdf
The TP4056 is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its SOP package and low external component count make the TP4056 ideally suited for portable applications. Furthermore, the TP4056 can work within USB and wall adapter. For more details, PT4056 Data Sheet.pdf
This is a simple single-channel relay module. Connect power and then switch the relay on by applying a low signal to the "IN" pin. The module has three screw terminal connections connected to the relay that include common, normally open (N.O.), and normally closed (N.C.). This module doesn't include any mounting holes. Some mounting options would be to 3D print an enclosure for the module or to hot glue the bottom of the module or zip-tie it to a non-conductive surface. Relay Data Sheet
Rechargeable high volume Lithium-ion Battery, high capability, lightweight,Low internal resistance with safety performance, and discharge performance. Long cycle time. For more details, Battery Data Sheet
