I have a couple of IKEA-like boxes in my home office labeled “Inbox”. They are full of stuff I buy and store waiting for some free time to spend on them. From time to time I pick one of the boxes and take a look at its contents. They are actually full of “wow” stuff. I would buy again most of the things there but at the same time I fear I’m just collecting stuff that will become junk.
I couple of week ago I rescued from one of those boxes an M5Stack Core Development Kit and some other stuff that was there for maybe 6 months.
Eight months ago I reviewed and hacked the AiLight WiFi light bulb by AiThinker. By the time there was a number of people doing the same because of a key reason: it sports an ESP8266 microcontroller and it is based on the OpenLight by Noduino, that had already provided open source code for the LED driver inside, the MY9291.
Let time pass and I was doing the same with the Sonoff B1 light bulb by Itead Studio. That was two months ago and the conclusion was that the AiLight is brighter the the B1 but the lacks warm white channel the Sonoff bulb has.
And now here I have yet another WiFi light bulb, the Arilux E27 Smart Bulb. It looks pretty much like the other two, same shape, same microcontroller, same driver, but different base again and most important: different LEDs. So how does this one compare to the other ones?
Six months ago I was reviewing the AiThinker AiLight, a great looking light bulb with an embedded ESP8266EX microcontroller, driven by a MY9291 LED driver. Just before summer IteadStudio released it’s Sonoff B1 [Itead.cc] light bulb, heavily inspired (probably same manufacturer) by the AiLight, at least on the design.
Now that IteadStudio has become popular between the home automation community you can also find the Sonoff B1 on global marketplaces like Ebay or Aliexpress for around 13€.
A closer look at the B1 uncovers some important differences. But before going deeper into the details let me first say that this post will probably look more like a review, at least more than I use to write. And second, yes: ESPurna supports the Sonoff B1 🙂
Really busy these days. I have some drafts ongoing but I wanted to publish this short post right away.
One of the readers of this blog, Michel Clavette, sent me these pics just yesterday. He bought 5 Ai Light bulbs and to his surprise two of them do not have an ESP8266 microcontroller but instead this IC labelled KK2015.
KK2015 powered Ai Light. Picture by Michel Clavette
It looks like a drop-in replacement for the ESP8266 since it has the same footprint and all the other components are (apparently) the same. But we have not been able to find even the slight reference to this one on the whole Internet…
So this is an open question: does anyone know about this chip?
UPDATE 20170407: I’ve been confirmed the KK2015 is the very same ESP8266 marked with a different label, reason unknown yet.
UPDATE20170407 (bis): A new update thanks to a contact that was involved in design of the Ai Light. The mark belongs to Konke, “a big customer of Espressif, so Espressif provides mark service for Konke in 2016.” So after all, the KK2015 is a rebranding of the ESP8266, nothing more.
Michel will try to flash it using the same procedure as for the ESP8266. Hope we will have some info from him soon.
Some weeks ago a tweet by Manolis Nikiforakis (@niki511) with the #ESP8266 hashtag drew my attention. Manolis had just received a “smart lamp” branded by Ai-Thinker, the AiLight. Yes, the same Ai-Thinker that has sold millions of ESP8266 based modules. Chances were it had an ESP8266 microcontroller inside. Too good not to buy one and take a look at the inside.
I actually bought two because you never know. And they arrived last Thursday. It took me less that 1 minute to open one of the boxes, pop out the cap and take a look at the inside just to see what I already knew. Time to play 🙂