Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed to power an ESP32 microcontroller using a Lithium-ion battery, a TP4056 battery charging protection module, a boost converter, and a solar panel. The circuit also includes a USB male 2-pin connection for additional power input. The TP4056 module is used to charge the battery and protect it from overcharging, while the boost converter steps up the voltage to power the ESP32.

Component List

1. ESP32

   • Description: A low-power system on a chip microcontroller with integrated Wi-Fi and dual-mode Bluetooth.
   • Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, VIN, 3V3, D15, D2, D4, RX2, TX2, D5, D18, D19, D21, RX0, TX0, D22, D23, BOOT

2. TP4056 Battery Charging Protection Module (Type C)

   • Description: A module used for charging and protecting Lithium-ion batteries.
   • Pins: OUT +, B+, B-, OUT -, +, -

3. USB male 2 pin connection

   • Description: A standard USB male connector with two pins for power.
   • Pins: Negative -, Positive +

4. Lithium-ion Battery 10000mAh

   • Description: A high-capacity rechargeable battery.
   • Pins: 11.1V, GND

5. Solar Panel

   • Description: A device that converts sunlight into electrical energy.
   • Pins: +, -

6. Boost Converter MT3608

   • Description: A DC-DC step-up converter used to increase the voltage.
   • Pins: OUTPUT +, OUTPUT -, INPUT +, INPUT -

Wiring Details

ESP32

• GND is connected to:

  • OUTPUT - of the Boost Converter MT3608
  • Negative - of the USB male 2 pin connection

• VIN is connected to:

  • OUTPUT + of the Boost Converter MT3608
  • Positive + of the USB male 2 pin connection

TP4056 Battery Charging Protection Module (Type C)

• B+ is connected to:

  • 11.1V of the Lithium-ion Battery 10000mAh

• B- is connected to:

  • GND of the Lithium-ion Battery 10000mAh

• OUT + is connected to:

  • INPUT + of the Boost Converter MT3608

• OUT - is connected to:

  • INPUT - of the Boost Converter MT3608

• + is connected to:

  • • of the Solar Panel

• - is connected to:

  • • of the Solar Panel

USB male 2 pin connection

• Negative - is connected to:

  • OUTPUT - of the Boost Converter MT3608
  • GND of the ESP32

• Positive + is connected to:

  • OUTPUT + of the Boost Converter MT3608
  • VIN of the ESP32

Lithium-ion Battery 10000mAh

• 11.1V is connected to:

  • B+ of the TP4056 Battery Charging Protection Module (Type C)

• GND is connected to:

  • B- of the TP4056 Battery Charging Protection Module (Type C)

Solar Panel

• + is connected to:

  • • of the TP4056 Battery Charging Protection Module (Type C)

• - is connected to:

  • • of the TP4056 Battery Charging Protection Module (Type C)

Boost Converter MT3608

• OUTPUT - is connected to:

  • GND of the ESP32
  • Negative - of the USB male 2 pin connection

• OUTPUT + is connected to:

  • VIN of the ESP32
  • Positive + of the USB male 2 pin connection

• INPUT + is connected to:

  • OUT + of the TP4056 Battery Charging Protection Module (Type C)

• INPUT - is connected to:

  • OUT - of the TP4056 Battery Charging Protection Module (Type C)

Code

There is no code provided for this circuit.