Updates based on running this

Flash-Sonoff-using-Raspberry-Pi.md

@@ -11,8 +11,14 @@ So, I will summarize the process and needed adoptions based on the above blog, p
 
 `sudo pip install esptool`
 
-2. Prepare serial connection
+2. Prepare serial connection. 
-(This is adopted for RaspberryPi 3, before it was ttyAMA0)
+
+_Note: Use the correct serial connection as per your version of the Raspberry Pi._
+
+| Device          |  Serial Connection      |
+| ------------- |---------------|
+| RaspberryPi 1/2          |   /dev/ttyAMA0      |
+| RaspberryPi 3          |   /dev/ttyS0      |
 
 `sudo systemctl stop serial-getty@ttyS0.service`
 
@@ -48,20 +54,82 @@ This is how it looks in real-life 😆
 
 # Flashing the firmware
 1. Erase flash memory:
-Connect 3,3V while button pressed to enter flash-mode:
+Connect 3,3V while button pressed for about 10 seconds to enter flash-mode. Then release and run:
 
-`esptool.py --port /dev/ttyS0 erase_flash`
+```bash
+# if using Raspberry Pi 1/2 use
+# esptool.py --port /dev/ttyAMA0 erase_flash
+
+# if using Raspberry Pi 3 use
+esptool.py --port /dev/ttyS0 erase_flash
+```
+You should see output like this:
+
+```bash
+➜  ~ esptool.py --port /dev/ttyAMA0 erase_flash
+esptool.py v2.5.1
+Serial port /dev/ttyAMA0
+Connecting....
+Detecting chip type... ESP8266
+Chip is ESP8285
+Features: WiFi, Embedded Flash
+MAC: dc:4f:22:ab:5e:dc
+Uploading stub...
+Running stub...
+Stub running...
+Erasing flash (this may take a while)...
+Chip erase completed successfully in 3.3s
+Hard resetting via RTS pin...
+➜  ~ 
+```
 
 2. Flash .bin, which you can download from the [release-section](https://github.com/arendst/Sonoff-Tasmota/releases):
 
-Again connect 3,3V while pressing button:
+Again connect 3,3V while pressing button for 10 seconds. Then release and run:
 
-`esptool.py --port /dev/ttyS0 write_flash -fm dout 0x0 /path/to/downloaded/sonoff.bin`
+```bash
+# if using Raspberry Pi 1/2 use
+# esptool.py --port /dev/ttyAMA0 write_flash -fm dout 0x0 /path/to/downloaded/sonoff.bin
+
+# if using Raspberry Pi 3 use
+esptool.py --port /dev/ttyS0 write_flash -fm dout 0x0 /path/to/downloaded/sonoff.bin
+```
+
+You should see output like this:
+
+```bash
+➜  ~ esptool.py --port /dev/ttyAMA0 write_flash -fm dout 0x0 sonoff-basic.bin
+esptool.py v2.5.1
+Serial port /dev/ttyAMA0
+Connecting.....
+Detecting chip type... ESP8266
+Chip is ESP8285
+Features: WiFi, Embedded Flash
+MAC: dc:4f:22:ab:5e:dc
+Uploading stub...
+Running stub...
+Stub running...
+Configuring flash size...
+Auto-detected Flash size: 1MB
+Compressed 456000 bytes to 312426...
+Wrote 456000 bytes (312426 compressed) at 0x00000000 in 29.2 seconds (effective 124.8 kbit/s)...
+Hash of data verified.
+
+Leaving...
+Hard resetting via RTS pin...
+➜  ~
+```
 
 7. Setup Wifi:
-Reboot your sonoff after flashing(toggle power wire) and run a command
+Reboot your sonoff after flashing(toggle power wire) and connect to serial console via miniterm:
 
-`miniterm.py /dev/ttyS0 115200 -e`
+```bash
+# if using Raspberry Pi 1/2 use
+# miniterm.py /dev/ttyAMA0 115200 -e
+
+# if using Raspberry Pi 3 use
+miniterm.py /dev/ttyS0 115200 -e
+```
 
 You will see some output, after pressing enter.