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JeeLabs: Getting started, final episode
As you may have noticed, the publication date of these posts has been shifting a bit. Well, no longer: from now on, all posts will be scheduled to go out on … Weekly Wednesday!As before, each post will...
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FairTradeElectronics: THEREMINE USB
Une interface sans contact pour téléphone portableLe thérémine est un instrument de musique, inventé en URSS, par Lev Termen, en 1919. Il se joue sans contact.Le principe est simple. Un son de base est...
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JeeLabs: Garage Parking Aid
This next article series is about setting up a practical project for use around the house. It’s small enough to be covered in a few articles, and simple enough to be constructed entirely on a...
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JeeLabs: Dip into the LPC810
Getting to know the ARM architecture and the LPC810 is a wonderful adventure. It’s also almost impossible to figure out where to start. So let’s just dip our toes in the water, eh?This week’s articles...
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JeeLabs: Schematics and layouts
The past several weeks were about hacking stuff together: electrically connecting chips and some other components together, and making the resulting circuit + software do fun stuff.This week is about...
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JeeLabs: Eye Squared See
Physical computing is about hooking things up. Sure, there’s also low-power and wireless in the mix, but in the end you need to tie into the real world, and that means connecting sensors, indicators,...
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mharizanov: WiFi IoT 3 channel relay board with MQTT and HTTP API using ESP8266
The ESP8266 DHT22/LED blinker project grew into a M2M relay board project with the following features in mind:Relatively small (10x5cm) PCBPowered via on-board power supply or externally via a...
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JeeLabs: LPC810 meets RFM69
This week, as we jump from 2014 into 2015, I’d like to start on an exploration which is dear and near to me: ultra low-power wireless sensor nodes for use in and around the house.The LPC810 µC has 4...
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JeeLabs: LPC810 meets RFM69, part 2
The code presented last week – or should I say last year?– was unfinished. In fact, it wasn’t even tested, just designed and written in a way which “should” work, eventually…The thing with...
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FairTradeElectronics: CONCERT ELECTRO-WASTE
Photo Ewaste / kai loeffelbein / Kids of Sodom Projet résumé - dossier complet à télécharger En 2017, selon un rapport de l’ONU, 65 millions de tonnes de déchets électroniques (ordinateurs,...
View ArticleJeeLabs: Embedded Linux
The “LPC810 meets RFM69″ series, is being postponed a bit longer than anticipated, the relevant pieces are simply not ready and stable enough yet to present as working code. With my apologies for this...
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JeeLabs: Volta makes the world go round
There is a lot more to go into w.r.t. the LPC810 µC and the RasPi/Odroid Linux boards, but since surprisingly many design decisions are related to that main driving force of electricity called...
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Nathan Chantrell.net: WiFi MQTT Display with the ESP8266
ESP8266 MQTT OLED DisplayLike many people I have been playing with the Espressif ESP8266 WiFi modules over the last few months. I’ve had a couple of modules running for a while now, one connected to an...
View Articlemharizanov: Google video tech-talk hangout anyone?
I’ve been meaning to hold a video Google hangout session on IoT topics for some time now, how about giving it a try?I imagine it as informal 1 hr tech-talk with the following structure35 min...
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JeeLabs: LPC810 meets RFM69, part 3
Let’s revisit the LPC810 and the RFM69. Things are starting to come together at last.I’ll pick up where I left off three weeks ago, making two LPC810’s talk to each other via RFM69’s and then picking...
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JeeLabs: Bits, pointers, and interrupts
By popular request…Several people have mentioned these topics to me recently, as being something they’d like to know more about. All of it is available from various textbooks of course, but it’s often...
View Articlemharizanov: IoT tech talk recording
Thanks to all that participated in the IoT tech talk session that was held late yesterday, as promised I am adding a recording of the sessionIt was suggested that the topic of the next hangout will be...
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JeeLabs: Uploading over serial
This week is about uploading firware over a serial communication link, and interacting with the uploaded firmware.First a quick recap on how it all works, then a little diagnostic tool, and then a...
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JeeLabs: Micro Power Snitch
It’s time to tackle a fairly ambitious challenge: let’s try to make an LPC810 run off “harvested” energy and use it to periodically send out a wireless packet.This week will be a short intro into the...
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JeeLabs: Micro Power Snitch, part 2
So far, there’s an idea, a circuit to collect energy, and sample code to make an LPC810 come alive every so often, briefly. It’s time to tie things together and see what happens!As usual, one article...
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