Category Archives: Analysis

20170210_145702s

Fenderino, the coolest guitar

Last February 7 I attended a workshop at a the SokoTech in Barcelona to assemble my own Fenderino, the coolest guitar ever (my knowledge about guitars is very limited, so take this sentence with a grain of salt).

The guitar is actually a shield for the Arduino UNO and has been designed by the people at abierto.cc, an initiative aimed to provide open(-sourced) tools for educators, created amongst others, by David Cuartielles, co-founder of Arduino. The shield is inspired by the works of two very good friends of mine: Marc Sibila (@marcsibila) and Jordi Divins (@jdivins). You really should be following these guys, they are doing very special things as Instròniks.

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KK2015 based Ai Light

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.

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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.

UPDATE 20170407 (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.

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ESP8266 Multi-relay boards: Sonoff Dual and Electrodragon

 

November was a busy month and the Sonoff Dual that IteadStudio kindly sent me to review was bored in a box waiting for some free time. But it was just fair that another board that has been waiting in the boards-to-review box for longer had it’s chance to have some fresh air too. So here we have the Itead Studio Sonoff Dual and the Electrodragon ESP Relay Board face to face.

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The Sonoff POW

Some months ago I wrote about a hack I did to one of my Sonoff devices to be able to use a simple current sensor to monitor my washer machine process and alert me whenever my laundry was done.

A few weeks ago Itead Studio released two new models for their Sonoff line, the POW and the DUAL. And the POW is Itead’s answer to my hack. I’m not saying they copied me, just that the Sonoff POW makes my hack utterly unnecessary. Do you want to remotely monitor your devices energy consumption? Buy a POW.

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Sonoff TH10 & TH16: sensors, displays, actuators,…

Itead Studio keep on creating interesting products for the hacker community. A few weeks ago a new version of the already classic Sonoff TH came to life. This new version comes in two flavours: the Sonoff TH10 and TH16 and you can buy them at Aliexpress: Sonoff TH 10A/16A Temperature And Humidity Monitoring WiFi Smart Switch.

In this article I will briefly talk about what’s new in this device to quickly go to explore one of those novelties: it’s external interface.

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