Sonoff Micro WiFi Smart USB Adapter Sells for $5

ITEAD Studio Sonoff family of WiFi-powered home automation devices is convenient to use with voice commands or mobile apps, and for those who want to more control over what runs in their network, Sonff devices are usually compatible with open-source firmware such as Sonoff-Tasmota.

We’ve very recently written about Sonoff D1 smart dimmer switch, but the company also launched Sonoff Micro WiFi smart USB adapter that allows you to control USB powered devices.

Sonoff Micro

Sonoff Micro specifications:

  • Power
    • Input – 5V/2.5A USB type-A male
    • Output – 5V/2.5A USB type-A female; BC 1.2 charging, max 1A output for charging
  • Connectivity – 802.11 b/g/n WiFi 4 @ 2.4 GHz
  • Misc – Power and WiFi LED’s, switch button
  • Dimensions – 45 x 30.5 x 26 mm (PC V0 flame-retardant material)
  • Weight – 17 grams
  • Certifications – CE, FCC

There’s no integrated power supply, so Sonoff Micro targets specifically USB power devices such as USB LED light strips, USB desktop fans, USB desktop lamps, or USB water pumps. It works the same way as other Sonoff devices via eWelink mobile app or through voice commands going through Amazon Alexa or Google Home. One of the use cases listed by ITEAD Studio is to prevent overcharging, but I doubt this is an issue for recent devices.

If we read the YouTube comments, we learn that Sonoff Micro is not based on Espressif ESP8266, but instead CKW04 chip. I could find very little information on the web, except for some files in Chinese on Github that show a 6x6mm CKW04 i802.11 b/g/n 2.4 GHz WiFi module developed by Coolkit. That probably means Sonoff Micro won’t be supported by Sonoff-Tasmota open-source firmware, or that it may take a while before support is implemented.

Sonoff Micro can be purchased for $4.99 until December 19, after which it will sell for $6.49.

Thanks to Andreas for the tip.

Support CNX Software - Donate via PayPal or become a Patron on Patreon
Advertisements

15
Leave a Reply

avatar
9 Comment threads
6 Thread replies
2 Followers
 
Most reacted comment
Hottest comment thread
11 Comment authors
Danny BeltranX-Ryl669Jean-Luc Aufranc (CNXSoft)Deets Recent comment authors
  Subscribe  
newest oldest most voted
Notify of
Fran Aquino
Guest
Fran Aquino

Hum, this could be useful to provide intelligent charging for any phone… someting like Qnovo on Sony Xperia devices. Would require some software on the device side but seems feasible.

Rogan Dawes
Guest
Rogan Dawes

Looks like they have a bunch of wireless products, including GSM and Zigbee, as well as WiFi. May be interesting to see if those docs get translated like the ESP8266’s did!

regular
Guest
regular

Too bad that there’s only one usb, I would take more ports or even wifi controlled USB hub on the spot.
Let’s hope that itead will release some sdk for this chip too.
Btw. USB per-port power switched hubs are pretty rare (uhubctl), somebody could make them cheaper. 🙂

Rob
Guest
Rob

Was looking for something to be able to restart my crashed Pi remotely. I wonder if this would work although I’d prefer tasmota so might better to use an s26 socket instead.

Dan
Guest
Dan

The best solution I’ve found so far is the POE hat with a managed switch.

benwilliam
Guest
benwilliam

mhh I would love to have the feature to turn off smartphone charging when reaching 80%

Danny Beltran
Guest
Danny Beltran

it can be done with this device and tasker on your phone

Deets
Guest
Deets

Probably from this chip family http://www.icomm-semi.com/product/index.html

Deets
Guest
X-Ryl669
Guest
X-Ryl669

Coolkit seems to sell ESP8285 based modules (as found in their website, in the downloadable documents). So, in the end, it might still work with Tasmota.

Member
Walter Miller

Very bad.
I have already bought the adapter and in front of me. And now I stand there and can only put him in the closet and wait and hope.

Advertisements