0Updating cheap SmartPlugs

I have pre­vi­ously writ­ten about modi­fy­ing cheap £10 smart­plugs to run open source firm­ware. Now I have quite a num­ber of them I needed an effi­cient way to update them. In this art­icle I doc­u­ment how to do

I have a range of Smart Plugs but they’re all based on the ESP8266 chip and all have at some point been flashed to the tas­mota firm­ware provided by Theo Aren­ds. How­ever, many of them were run­ning a very old ver­sion and I wanted to update it for secur­ity reas­ons. This proved to be a fairly simple pro­cess once I’d figured it out.

Firstly, identify your current firmware

Load the admin page of the device with a web browser. At the bot­tom of the page it will say what ver­sion you are on

Do the updates as a multi-stage process using the in-built system

I had to flash 5 firm­ware ver­sions to get up to 8.2, as I was on such an old ver­sion, and a dir­ect leap isn’t sup­por­ted without los­ing con­fig­ur­a­tion. I just used the built in tool (web inter­face; firm­ware upgrade; point to *.bin file. There is an offi­cial Wiki with the migra­tion path details that you should refer to for the most up-to-date inform­a­tion. Cur­rently the pro­cess is (jump into it based on your cur­rent firm­ware)

If the update goes wrong, you’ll have to reflash the device

I had a couple that did­n’t reboot prop­erly dur­ing the pro­cess. I simply opened them up, con­nec­ted my CH340g, and used Tas­mot­izer 1.1 with the final firm­ware I wanted (at time of writ­ing 8.2). I then had to con­nect to the device dir­ectly via wire­less and set my wifi SSID and pass­word (don’t for­get to tick the box)

Once the devices were updated I had to reconfigure some of them that had previously had custom firmware

The firm­ware has greatly improved the abil­ity to cre­ate a “cus­tom pro­file” for dif­fer­ent types of devices. I have sev­er­al which needed dif­fer­ent con­fig­ur­a­tions. I provide the details for each below. To cre­ate a cus­tom con­fig go to Con­fig­ur­a­tion: Con­fig­ure Tem­plate. I usu­ally select the Sonoff Basic as the start­ing point, and I give the tem­plate an obvi­ous name (e.g. SWA1). Save and the device will restart. Once it has restar­ted go to Con­fig­ur­a­tion: Con­fig­ure Mod­ule: and then select the newly cre­ated tem­plate. The device will then reboot again.

SWA1 modules: Linganzh; COOSA; Annstory

Think we've missed something? Let us know by commenting below. If you would like to subscribe please use the subscribe link on the menu at the top right. You can also share this with your friends by using the social links below. Cheers.

Leave a Reply