updated readme

README.md

@@ -1,11 +1,63 @@
 # MicroPython RGBWW Smart Bulb
-tested on a Tuya WinnerMicro W600 Smart Bulb
+tested on a Tuya [WinnerMicro W600-B800](https://w600.chip.haus/) Smart Bulb
 
 ## [VS Code Development guide](https://lemariva.com/blog/2019/08/micropython-vsc-ide-intellisense)
 
+## Hardware flashing preperation
+![TY5 W600 Pinout](images/board.jpg)
+1. connect serial adapter to GND, VCC, RX0 and TX0
+2. erase secboot and old image
+   ```bash
+   python3 -m w600tool -e -p /dev/ttyUSB0
+   ```
+3. connect PA0 (BOOT) to GND and reset chip by pulling RST low
+4. flash MicroPython firmware
+    ```bash
+    python3 -m w600tool -p /dev/ttyUSB0 -u W60X_MicroPython_1.10_B1.3_IMG/wm_w600.fls
+    ```
+    ```
+    Opening device: /dev/ttyUSB0
+    Erasing secboot
+    Switched speed to 2000000
+    Uploading W60X_MicroPython_1.10_B1.3_IMG/wm_w600.fls
+    0% [##############################] 100% | ETA: 00:00:00
+    Total time elapsed: 00:00:15
+    Reset board to run user code...
+    ```
+5. disconnect PA0 (BOOT) and reset the device
+6. test Python shell with `screen /dev/ttyUSB0 115200` (press `CTRL-A` + `k` to quit)
+    ```
+
+    __            __
+    \ \    /\    / /
+     \ \  /  \  / /
+      \ \/ /\ \/ /
+       \  /  \  /
+       / /\  / /\
+      / /\ \/ /\ \
+     / /  \  /  \ \
+    /_/    \/    \_\
+
+    WinnerMicro W600
+
+    MicroPython v1.10-284-g2eee4e2-dirty on 2019-11-08; WinnerMicro module with W600
+    Type "help()" for more information.
+    >>> 
+    ```
+
 ## Installation
-1. Flash MicroPython onto the WM W600 chip. [Binaries](W60X_MicroPython_1.10_B1.3_IMG/)
-2. Copy python files to the board.
+1. In the python shell, connect to wifi and start FTP server:
+    ```python
+    >>> import easyw600
+    >>> easyw600.scan()
+    >>> easyw600.connect("<SSID>", "<PASSWORD>")
+    conneting...
+    connected, ip is 192.168.1.234
+    >>> easyw600.ftpserver()
+    ftpserver is running.
+    ftp server port is 21, username is root, password is root
+    ```
+2. Copy python files to the board. For example via `ftp://root:root@192.168.1.234`
 3. Reset the uC
 
 ## How to upload code remotely (WM uPython SDK)
@@ -15,4 +67,11 @@ tested on a Tuya WinnerMicro W600 Smart Bulb
     WIFI_SSID="<SSID>"
     WIFI_PASSWD="<PASSWORD>"
     ```
+    This can also be done via the Python shell:
+    ```python
+    >>> f = open("wifi_config.py")
+    >>> f.write('WIFI_SSID="<SSID>"\n')
+    >>> f.write('WIFI_PASS="<PASSWORD>"\n')
+    >>> f.close()
+    ```
 2.  Reboot the M600 and connect to bulb via FTP without username and password