iOS -> Bluetooth -> ESP32 -> Wi-Fi

Securely send WiFi password to ESP 32 using iOS and Bluetooth.

You don't need following code anymore.

// Very sensitive data.
const char* ssid     = "your ssid";
const char* password = "your password";

You can easily configure WiFi of ESP32 using Bluetooth from iOS device.

|Your iOS Device |
        |
        | Bluetooth
        |
    |ESP 32|
        |
        | Wi-Fi
        |
|Wi-Fi Access Point|

GATT Specifications

Service Name

This service provides WPA Connection Service.

UUID: 6a1c63be-71ac-4d8d-91b1-8b66af6c3193

Service Characteristics

SSID

• Property: Write
• Type: org.bluetooth.characteristic.string
• UUID: 0a0afd34-f565-416a-a57f-4a652fed52eb

Password

• Property: Write
• Type: org.bluetooth.characteristic.string
• UUID: 40b4cb5a-739b-49d3-b230-6e16e469e93f

Connect

• Property: Write
• Type: boolean
  • 0: To disconnect
  • 1: To connect
• UUID: 79995725-db40-40f7-9c1d-a4ff7116c230

IpAddr

• Property: Read
• Type: org.bluetooth.characteristic.string
• UUID: 766DD6E6-E301-4283-AFD9-F5EEC5FA49B2

Status

• Property: Read
• Type: uint8
• UUID: f51f39f3-8fa2-4f9e-846f-00b36053ac0e

| Bit | Name | Description | |---|---|---|---|---| | 0 | | | | | | 1 | | | | | | 2 | | | | | | 3 | | | | | | 4 | | | | | | 5 | | | | | | 6 | | | | | | 7 | | | | |

Flow

Connect

1. Write SSID
2. Write Password
3. Write Connect to 1

Disconnect

1. Write Connect to 0