Mobile Checkin : Make a door unlocker with Arduino pro micro + Bluetooth 4.0 (BLE)

Goal

Automatically unlock & lock the door after verifying the passcode and command received via bluetooth

Features

• Automatically unlock the door if people walk close to the door from inside of the room

  

• For people want to get into the room from outside, this device can receive passcode and command via bluetooh, verify eligibility and trigger unlocking function

  

• Display working status in OLED

• Working in 4 modes: unlock once with 3 seconds delay, keep unlock with timer set, alway unlock until lock command, lock.

Hardwares

1. List

• Arduino ( pro micro )
• Bluetooth 4.0 module (BLE)
• PIR Sensor
• Relay
• Adafruit OLED(SPI 128*64)
• Jump wires

2. Connecting Hardwares

About Client App

For testing, please use any mobile app that can send bluetooth data. such as LightBlue

***BLE_Lock_Trigger*** is a part of Mobile Checkin project. This device is to be connected to a hardware router ( Raspberry Pi) via bluetooth. Besides of these, the whole project consist of another 2 parts:

- Mobile Application (wechat miniApp so far) as client.

- Micro-Service Server as an agent working between hardware routers and Mobile Application.