Developers Club geek daily blog

ESP8266: What inside? national wi-fi??

3 years, 9 months ago


Our first article about Wi-Fi-chip ESP8266 has been given by habra-community a cordial welcome. Despite that contained a little specific information. To that there was good reason? NDA signed with us for receiving SDK from the solution manufacturer, the Espressif company. For this reason we have simply told? here, there is such solution?. That the interested had opportunity to pay attention.

The other day we (the COOLRF project, do not forget to subscribe on our by Vkontakte community if you do not consist in it yet) have got permission of the vendor of the chip to the publication in our articles of information which was earlier getting under terms of agreement about nondisclosure. Everything whom details interested? welcome under kat.

Read more »


COOLRF: digest of news of the #2 project

4 years ago


In the summer we became much more rare to be published on Habré. To tell more precisely, have ceased to be published at all. Gardens kitchen gardens have begun, loading at the main work has increased. Our community VKontakte which has brought together already more than 2700 participants began to be suitable quite for the publication of short notes about the project course, than we also used all this time.

What has occurred in two months? silence?? In the today's? release?: presentation of the project, two new system modules (the NB1 thermostat and the sensor of leakage of WS1), the cloudy compiler for NRF24LE1 and control interface of the smart house.

Read more »


COOLRF: Reset

4 years, 2 months ago


Many to the habravchena already have managed to notice unusually big pause in our regular publications? from COOLRF life?. For the passed more than one and a half months there were many important events. We have lost, but then have found and have safely received sending with? the rare-earth? components of our dimmer. The JetStyle company has drawn excellent design for our site. Habrakhabr has prolonged our free corporate account (yes, half a year have flown by move!). We have solved one hardware problem of dimmer, but could not solve another yet. Have understood that we will not combine the current hardware design of dimmer with program stack of Atmel BitCloud. Have left one participant. Have decided to return to development on the basis of NRF24LE1. Have begun development of one new interesting solution with the new developer.

Interestingly? Welcome under kat (carefully, unexpectedly there are a lot of letters)!

Read more »


In a toilet?? on the smartphone?

4 years, 3 months ago


Recent post about application? iToilet? gathered many pluses, as well as my first comment about electronic queue. The people outright worked in comments, inventing everything new and new features of the device. This morning in a feysbukolenta of one of friends the link to a promo-page of a similar device slipped with is sensitive the transformed idea.

Of course, present date speaks for itself and this economy can appear a joke. But it will not prevent us to argue actively about perspectives of this idea in comments to a post. And if it appears, what it was not the joke who knows, perhaps the vendor will notice surge in activity and will send us a device? on to test?, as it already was with ITEAD IBOX microcomputer recently. Under a cat? translation into Russian of basic functions of the device and is a little reasonings on a subject.

Read more »


one more Is knocked down IBOX, ARM-мини-ПК

4 years, 3 months ago


My past the post about IBOX yet did not become covered by a mold a dust, and the operating period on fund raising had time to type almost nine kilodollars instead of two planned. Today the computer can be ordered for $70, before the operating period termination even 12 days. On leaving week I in the arm had one of preselling copies IBOX. I will knock down it on your eyes and I will tell about singularities of a new product.

Read more »


IBOX ≈ one more ARM-мини-ПК

4 years, 4 months ago


On March, 5th, before universal women's day, on known kraudsorsingovom resource Indiegogo the operating period on fund raising on creation of one more miniature PC on the basis of ARM began. Under katom small preliminary survey of a device, plus is a little reasons about what it can appear better the numerous colleagues.

Read more »


Control ²umnym the dwelling ⌡ tomorrow

4 years, 4 months ago


Let's dream a little and we draw in the imagination a portrait ²umnogo the cutout ⌡. It something plane, hanging on a wall, or even built in in it. Instead of the customary push-button switch. Something with the bright sympathetic touch screen. Which is ungeared in an inactivity regime, but starts to be shone at half strength at approach of the person and lights up on a total power at an arm present to the shield, representing in all beauty organs of local control of engineering systems. By means of built in wi-fi ²vykljuchatel ⌡ can communicate both with the Internet, and with remaining ²vykljuchateljami ⌡, scattered on walls of the clever dwelling. ²vykljuchatel ⌡ comprises a microphone and the speaker, fathoms vocal commands in different languages and something can tell in the answer.

²vykljuchatel ⌡ has the typical circuit of fixing to a wall, works from the built in accumulator and it is charged from the wireless charging which have been built in in a wall. Any ²vykljuchatel ⌡ can be removed from the ²posadochnogo ⌡ places and is rearranged on another, for example, from an alleyway in the big room. Thus automatically there will be a function change ≈ it begins to control the room chandelier, instead of koridornym the fixture. Being unhitched from a wall ²vykljuchatel ⌡ as automatically switches in a regime of a wireless benchboard all engineering systems of the dwelling.

²utopija ⌡ ≈ you tell and will be not right. All necessary apparatus possibilities for implementation of the similar scenario the majority of the Chinese inexpensive pads possesses already today. It is necessary to learn only correctly to fix them on walls, to charge wireless chargings (by the way too already widely accessible and rather inexpensive) and to write a demanded software. The way is necessary long, but to start to go on it it is possible already today. Under katom small experiment with fixing 7 "a pad magnets to a vertical surface.

Read more »


COOLRF: the correct choice of sockets and cutouts of the clever dwelling

4 years, 5 months ago


What qualities sockets and cutouts of the clever dwelling should possess? They should be inexpensive, nice outwardly, to have minimum sizes ²v depth ⌡ and to be able to work in ²knopochnom ⌡ a regime (like a call standard button). To find one such cutout in a series of any vendor ≈ a difficult task. To find a series of such cutouts ≈ the task from fantasy area. But also the fantasy sometimes happens. Today we acquaint you with sockets and cutouts LK60 which perfectly approach for installation of embeddable COOLRF units. Under katom it is a lot of photos (traffics!).

Read more »


USB - ² a whistle ⌡ ZigBee on 2.4Ггц the arm

4 years, 5 months ago
While the first sendings with our units go to our customers, we prepared paper which helps you to collect them ≈ if you acquired a dial-up for the independent assembly, or to remove questions on circuitry ≈ if you acquired units as an assembly.

we Begin with result



COOLRF EGLE USB ≈ usb a whistle on 2.4Ггц, compatible with zigbee

Read more »


3D-printing casing for DIY диммера

4 years, 7 months ago


The hero of our today's post — Alexey Markin of AlexNZ, the art-director of the ekaterinburzhsky company of JetStyle. Alexey not only suggesting to help to develop casing for our dimer, but also at first — really it developing, secondly — printing on the printer some copies, and, thirdly — beautifully photographing result of the operation. For what we told it today many thanks!

Read more »