![]() ![]() In upcoming tutorials, other projects will be explored using the BLExAR app and CC254x modules. In other BLExAR tutorials, applications in control, data acquisition, and communication have been investigated ( click here to explore BLExAR projects). Lastly, the BLExAR app was used to communicate between the Arduino board and a smartphone, where advanced applications can begin to form using the basics outlined in this tutorial. ![]() We can alter properties of the BLE module such as its name, characteristic ID, and sleep state while also being able to read its firmware version, name, and Bluetooth address - all of which can help the user personalize and understand a given module that much more. The MLT-BT05 was controlled first using AT+ commands and then using the SoftwareSerial() library on Arduino. First thing to do in this case is remove any delay( ) statements you have added to your loop( ) code. ![]() On ESP8266/ESP32 the 64 byte default can be changed in the constructor. In this tutorial, I explained how to use Arduino to communicate and learn about the CC254x chip and work with the firmware on an MLT-BT05 module. Arduino Software Serial library defaults to 64 bytes (63 usable) fixed in the Uno/Mega2560/Nano. The CC254x modules are widely used and inexpensive, which makes them great for applications in wireless communication on the maker level with Arduino. This tutorial acts as an introduction to Bluetooth Low Energy as an interface between Arduino and a smartphone. Arduino code to read and change CC254x parameters #include SoftwareSerial ble_device ( 3, 4 ) String str_ii = "" int ii_0 = 0 void setup () ![]()
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