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docs/setitup/ble.md

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+# 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**.
+
+For Arduino and ESP8266 you can use an HM10 or HM11 below.
+|Module|Purpose|Where to Buy|
+|-|-|-|
+|HM 10 Keyes bluetooth module|Bluetooth|[compatible parts list](https://docs.google.com/spreadsheets/d/1_5fQjAixzRtepkykmL-3uN3G5bLfQ0zMajM9OBZ1bx0/edit#gid=1323184277)|
+
+## Pinout
+|Module Pin|Board RX Pin|Board TX Pin|
+|-|:-:|:-:|
+|Arduino|D6 to HM10 TX|D5 to HM10 RX|
+|ESP8266|D6 to HM10 TX|D7 to HM10 RX|
+
+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.
+
+## Arduino Hardware setup
+![BLE Arduino](../img/OpenMQTTgateway_Arduino_Addon_BT.png)
+
+## ESP8266 Hardware setup
+![BLE ESP8266](../img/OpenMQTTgateway_ESP8266_Addon_BT.png)
+
+