Simplest Bluetooth 4.0 BLE & Arduino for $7

by ClintK2 in Circuits > Wireless

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Simplest Bluetooth 4.0 BLE & Arduino for $7

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This tutorial is intended to show the minimum steps to get a Bluetooth 4.0 CC2540 Module to connect to an Android Smartphone or tablet.

Buy Arudino Nano on Ebay for $3

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Buy a Bluetooth BLE "SMART" Serial Uart on Ebay for $3.46

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Connect the Nano and the Bluetooth Serial Module

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Select Board Type to Be a Nano and Then Upload ASCII Example Code to Your Arduino

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Download HM BLE Terminal APP From Google Play Store

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Launch the BLE Terminal App

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Open the Menu Button Then Hit Connect So You Can Scan for New Devices

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Connect to the Serial Module

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The android device will then search for available devices.

It should find a BT05. Select this device to connect to.

Hit the Reset Button on the Arduino and You Should See the Communication Happen

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From here you can write your own code. A Serial.print(" your text or data here "); is all that is needed.

Note you need to hit the clear screen button on the android app to see new data from your device.

I hope it works for you.