Read BLE Characteristic Value in Arduino Uno

Question

I am trying to build a Smart Led project using Arduino Uno, RGB Led, HM-10 BLE module, and Android device.

I am able to connect HM-10 with my android device and read and write characteristic values using Android BlueDroid stack.

But for this project to work I need to check changes in characteristic value in Arduino and process color value and produce output to light up LED.

I thought I could possibly use AT commands (like AT+Name? AT+POWE? AT+CHAR?) parse their result , but I couldn't find any AT command to read characteristic value. If anyone know such working AT commands for HM-10, please answer?

Also, I looked into CurieBLE library from Intel for Arduino. I think the library is to work on an Arduino board which has BLE hardware as a built-in feature. If that's not the case, please help me how can I communicate Arduino and HM-10 using CurieBLE or any other available library?

Answer 1

I was able to communicate Arduino UNO and HM-10. Whenever one writes a characteristic on BLE using Android application, the exact bytes are transmitted to Tx/Rx channel to Arduino and can be read using SoftwareSerial Arduino library.

CurieBLE library works on Genuino/Arduino 101 board which has Intel Curie Module.

Answer 2

I found this site that discusses the HM-10 and they linked to the datasheet which lists all the AT commands. The set/query characteristics AT command is listed as #13 on page 24.

Datasheet link.

"Bluetooth 4.0 with HM-10" tutorial for MIT course "How To Make (almost) Anything"

Hope this helps.