Hm10 details (#614)

* Add infos and change HM10 speed to a macro
* remove unnecessaries macros

docs/setitup/ble.md

@@ -1,6 +1,6 @@
 # BLE gateway
 ## Compatible parts
-The ESP32 has an integrated BLE module, with this board the BLE gateway don't need any additional hardware. Making it the **advised board for BLE**.
+**The ESP32 has an integrated BLE module**, with this board the BLE gateway don't need any additional hardware. Making it the **advised board for BLE**.
 
 For Arduino and ESP8266 you can use an HM10 or HM11 below.
 |Module|Purpose|Where to Buy|
@@ -15,8 +15,13 @@ For Arduino and ESP8266 you can use an HM10 or HM11 below.
 
 Vcc pin of the board and the HM10 Module to a 5V supply source.
 Ground pins of the board and the HM10 Module to the ground of the supply source.
-The HM10/11 firmware version must be  >= v601.
-The baud rate of the HM10/11 module must be set to 9600 bauds.
+
+### Debugging the HM10
+So as to communicate directly with the HM10 you may use [this program](https://github.com/1technophile/serial_modules_debug) from Martin Currey, you can upload it to your ESP board and it will enable without an FTDI to write and read commands directly to the HM10 through the ESP. You may use the Arduino IDE Serial Monitor to read and send the commands.
+The baud rate of the HM10/11 module must be set to 9600 bauds , the command `AT+BAUD?` enables to know at which speed the module is set.
+So as to set it to 9600 that you may use `AT+BAUD0` command.
+
+The HM10/11 firmware version must be  >= v601, the command `AT+VERS?` enables to know the firmware version.
 
 ## Arduino Hardware setup
 ![BLE Arduino](../img/OpenMQTTgateway_Arduino_Addon_BT.png)
@@ -24,4 +29,4 @@ The baud rate of the HM10/11 module must be set to 9600 bauds.
 ## ESP8266 Hardware setup
 ![BLE ESP8266](../img/OpenMQTTgateway_ESP8266_Addon_BT.png)
 
-
+The implementation with the HM10 module would not have been possible without the work of [Martin Currey]( http://www.martyncurrey.com), thanks!