View source for Flash Tasmota to Sonoff using Raspberry Pi

I'm using a Raspberry Pi to flash the firmware.  I find this simplier that using a USB TTY device plus I also have a number of Raspberry Pi's laying around.

= Prerquisite =

== Install PIP ==
<pre>
apt install python3-pip
sudo pip3 install esptool
</pre>

== Change Config Files ==


=== cmdline.txt ===
<pre> vi /boot/cmdline.txt </pre>
delete  <pre> "console=serial0,115200" </pre>

=== config.txt ===
<pre> vi /boot/config.txt </pre>

add

<pre> "enable_uart=1" </pre>



= Flashing =
<span style="color:red; background:yellow">Warning: Do not have this device connected to mains power while flashing.</span>  Power is obtained by the Raspberry Pi. You need to hold the button down while powering on.  After each command you will need to reboot the device and hold the button down to enter flash mode.

== Display Existing ==
<pre> esptool.py --port /dev/serial0 flash_id </pre>

== Backup ==
<pre> esptool.py --port /dev/serial0 read_flash 0x00000 0x400000 sonoff-image4M-stock.bin </pre>
or
<pre> esptool.py --port /dev/serial0 read_flash 0x00000 0x100000 sonoff-image1M-stock.bin </pre>

== Erase ==
<pre> esptool.py --port /dev/serial0 erase_flash </pre>

== Flash ==
Here I'm downloading the sonoff.bin file from thehackbox but writing the file as sonoff-7.2.0.bin.  At time of download the version has probably changed, so write the file as per the correct version number so you know which version of the file you have.

<pre>wget http://thehackbox.org/tasmota/release/sonoff.bin -O /home/pi/Downloads/sonoff-7.2.0.bin</pre>
<pre>esptool.py --port /dev/serial0 write_flash -fm dout 0x0 /home/pi/Downloads/sonoff-7.2.0.bin</pre>

= Configure =


== miniterm ==
Miniterm is a terminal app to allow connection to the Sonoff over serial so we don't need to connect to the device over Wi-Fi for initial configuration.

<pre>miniterm /dev/serial0 115200 -e</pre>

== settings ==
Change the settings as you require.
<pre>
backlog ssid1 myssid; password1 mypassword 
backlog ipaddress1 10.13.13.238; ipaddress2 10.13.13.254; ipaddress3 255.255.255.0; ipaddress4 8.8.8.8
backlog ntpserver1 1.au.pool.ntp.org; ntpserver2 2.au.pool.ntp.org; ntpserver3 3.au.pool.ntp.org; timezone +10; Latitude -27.475646; Longitude 153.030499
backlog PowerOnState 1; teleperiod 20; PowerRetain 1
backlog MqttUser username; MqttPassword passw0rd; Topic laundry; DeviceName laundry; MqttHost 10.13.13.253; GroupTopic2 CanUpgrade
</pre>

Now change your device to the correct type.  Note if you have the Pow device, changing to Pow will disable the serial logger so any further commands will need to be done from the WEB GUI.
<pre>
module 43
</pre>


You can view the console command but can not enter any moving forward.  Also notice the baud rate change.
<pre> miniterm /dev/serial0 4800 -e</pre>

When updating the MQTT details and the module type the device will reboot, so make sure you wait for reboot to complete.

{|
|Field
|Description
|-
|ipaddress1
|IP address
|-
|ipaddress2
|gateway
|-
|ipaddress3
|IP mask
|-
|ipaddress4
|DNS
|}

Modules
{|
|Number
|Descrption
|-
|0
|Generic
|-
|1
|Basic
|-
|4
|TH
|-
|5
|Dual
|-
|43
|Pow R2
|-
|}

....and many more.


[[Category : Sonoff]] [[ Category : Tasmota]]