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Bluetooth 2 Relays Control Pro 1.0 MOD APK for Android

Bluetooth 2 Relays Control Pro
Version 1.0
Updated on November 5, 2025
Category Newsletter Social
Size 1.58MB
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Download(1.58MB)

Control your devices using Micro-controller 89c2051 and Bluetooth Module HC-05

Here is a simple Android Bluetooth Remote Control Project for 2 Relays / Device using 89c2051 Micro-controller and HC-05 Bluetooth Module.

You can download circuit and hex file here http://www.hobbyprojects.com/bluetooth-device-control/

App Instructions:

1. First make sure your HC-05 Bluetooth Module is paired with your mobile. The default password for pairing is "1234" or "0000". Check the manual of Bluetooth module.

2. When you press ON button for Device 1 it sends the data "A" to Bluetooth Module connected with a circuit. Microcontroller turns ON the Device 1 relay when it detects "A".

3. When you press OFF button for Device 1 it sends the data "a" to Bluetooth Module connected with a circuit. Microcontroller turns OFF the Device 1 relay when it detects "a".

4. When you press ON button for Device 2 it sends the data "B" to Bluetooth Module connected with a circuit. Microcontroller turns ON the Device 2 relay when it detects "B".

5. When you press OFF button for Device 2 it sends the data "b" to Bluetooth Module connected with a circuit. Microcontroller turns OFF the Device 2 relay when it detects "b".

Bluetooth 2 Relays Control Pro
Bluetooth 2 Relays Control Pro
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