[Solicitation Order] IoT fingerprint door lock control board based on ESP32

# Project Introduction

This project is a fingerprint door lock control board based on ESP32. The fingerprint module uses AS608. The board has a DHT11 temperature and humidity sensor interface, a servo interface, and can be connected to the network to realize simple smart home applications.

## Design Idea

### Hardware part

1. The main control uses ESP32-S, supports Bluetooth and 2.4G, and can enter the IoT cloud platform
2. The power supply part uses a combination of DC-DC and LDO to power the main control board. Consider ESP32 consumes a lot of power when WIF is turned on. The 3V3 power supply needs to power both AS608 and ESP32. LDO uses 1084 (originally 1086 is enough, but the 1084 package is as big as it, and the maximum 5A price is not much more expensive hh)
3 . The ESP32 download part uses CH340 as the USB to TTL chip, combined with the reset circuit, to support automatic downloading
4. The door lock control part does not use a key switch, but uses the touch pad pin of the ESP32. In order to prevent human body static electricity, ESD protection is added Circuit
5. All IOs of ESP32 are led out through pin headers to facilitate subsequent debugging and development

### Software part

1. The IoT cloud platform used in the project is blinker, which supports Arduino device access
. 2. The project uses the Arduino framework of platformIO and is developed based on C++. The project warehouse address is [https://github.com/Superyu-github/AutoLock](https://github.com/Superyu-github/AutoLock). Everyone is welcome to fork. Of course, it would be better if you give me a star. Haha.

### This is

my first drawing at the end. There must be something wrong. I welcome criticisms and corrections.