expressif sdk

zk/Expressif_IoT_Development_Framework.md

@@ -51,6 +51,8 @@ To demonstrate compilation, I have copied one of the demo projects provided:
  cp -r /opt/esp-idf/examples/get-started/hello_world .
 ```
 
+### Initialise the project
+
 To initialise the project, run:
 
 ```sh
@@ -59,3 +61,27 @@ idf.py set-target esp32
 
 > Python is used as the client for automated processes/bootstrapping etc, even
 > though the code that runs on the device is written in C.
+
+### Check ESP32 is registered as connected to computer you are programming on
+
+Check that ESP32 is registered as connected (after plugging in);
+
+```sh
+lsusb
+```
+
+Current device listed as `ID 10c4:ea60 Silicon Labs CP210x UART Bridge`
+
+> `Silicon Labs CP210x` is the USB-to-serial chip on the ESP32 board
+
+Then run:
+
+```sh
+ls /dev/ttyUSB*
+```
+
+It should return something like:
+
+```
+crw-rw---- 1 root uucp 188, 0 Dec 15 17:57 /dev/ttyUSB0
+```