app: update README

Author: redchenjs

CMakeLists.txt

@@ -2,4 +2,4 @@ cmake_minimum_required(VERSION 3.5)
 
 set(SUPPORTED_TARGETS esp32)
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(bluetooth_uart_hci_controller)
+project(bluetooth_hci_uart_controller)

README.md

@@ -1,20 +1,23 @@
-Bluetooth UART HCI Controller
+Bluetooth HCI UART Controller
 =============================
 
 BTDM controller inside the ESP32 chip, use UART(H4) as HCI IO.
 
 ## Pinmap
 
-| HCI IO | TX | RX | CTS | RTS |
-| :----: | -: | -: | --: | --: |
-|    Pin |  5 | 18 |  19 |  23 |
+| UART | TX | RX | CTS | RTS |
+| :--: | -: | -: | --: | --: |
+|  Pin |  5 | 18 |  19 |  23 |
+
+* HCI UART protocol: `H4`
+* HCI UART baudrate: `921600 bps`
 
 ## Preparing
 
 ### Obtain the Source
 
 ```
-git clone --recursive https://github.com/redchenjs/bluetooth_uart_hci_controller_esp32.git
+git clone --recursive https://github.com/redchenjs/bluetooth_hci_uart_controller_esp32.git
 ```
 
 ### Update an existing repository
@@ -44,3 +47,9 @@ source ./esp-idf/export.sh
 ```
 idf.py flash monitor
 ```
+
+## Attach device to system
+
+```
+btattach -B /dev/ttyX -P h4 -S 921600
+```