In my earlier post I mentioned about how to configure HM-10. My HM-10 by default has name BT05. I want to change it. But how ? That's not hard as long you have necessary tools to do it. In my case I setup it using breadboard and use Arduino 5v as power supply. To configure HM-10 you need to issue AT command. For that purpose you need to use serial communication between computer and the module. Here are tools that I use: HM-10 BLE USB to Serial/TTL adapter or cable I use FT232RL USB to TTL adapter Arduino and Arduino IDE Male to male jumpers USB to mini usb cable data (for serial connection) Here is HM-10 and FT232RL side by side. For pinout for HM-10 and FT232RL based on above picture are below. HM-10 (From left to right) STATE RXD TXD GND VCC EN FT232RL (From left to right) DTR RX TX VCC CTS GND The pin we will use for serial communication are below. HM-10 TXD <-------> FT232RL RX HM-10 RXD <-------> FT232RL TX