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mharizanov: You watch too much TV
I have the feeling that my teenager son spends too much time in front of the TV. We have a house rule that he is allowed to watch TV only after all homework is done, room is tidied up and for no more...
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mharizanov: Interfacing with Paradox home security system attempt 2
I toyed a bit with the Paradox security protocol last year, tapping into the keypad’s interface in an attempt to decode the messages being exchanged between the base station and the keypads. I had some...
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mharizanov: DIY Internet of Things Fire Alarm
I purchased a battery operated smoke/fire alarm few days ago and it showed up today. It runs on 9V and will make a loud sound if smoke is detected. My intention was to hook it up with my home...
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FairTradeElectronics: ON THE ROAD OF ELECTRONICS
The roadVoir en plein écranThe electronics roadA research on the electronics industry, its science, its technics, its men and its geography.How electronic work ?where do the raw material come from...
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FairTradeElectronics: KAZAKHSTAN, UNE ÉLECTRONIQUE IDÉALE
Fiction sociale présentant en plusieurs tableaux (T) une industrie de l’électronique équitable, son usage, sa conception, sa fin de vie. Cette utopie socio-industrielle prend place au Kazakhstan qui a...
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mharizanov: Improving my home automation system’s Data Quality
Data Quality is one of the areas I have been neglecting in my home automation system so far. As a result, I seem to be capturing some ‘garbage’ data along with the good quality data. Bad data can...
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mharizanov: Improving my home automation system’s Data Quality
Data Quality is one of the areas I have been neglecting in my home automation system so far. As a result, I seem to be capturing some ‘garbage’ data along with the good quality data. Bad data can...
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mharizanov: Duck DNS updater in Node-RED
Dyn and No-IP have been for long time my choice for dynamic DNS, but both have recently made steps towards commercializing their services and implementing monthly confirmation process. I think it is...
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mharizanov: Monitoring my home automation system uptime
I’ve set up a uptime monitor for my home automation system so that I’m notified when it is down. Such event could mean two things: either Internet connectivity issue, or system is down due to power...
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mharizanov: MQTT topic tree structure improvements
I’ve been unhappy with my old MQTT topic tree structure for quite some time now and did some thinking/research on how to improve it. Google pointed me to Tinkerman’s article on similar subject, and I...
View Articlemharizanov: Exposing Raspberry Pi’s network setting files to /boot so that...
I needed to clone my current Raspberry Pi SD card image to use for another headless project (on another network), but then realized the network settings were my home ones. I had access to a PC only, so...
View ArticleJeeLabs: It’s been a year
It’s been a year since the last post on this weblog. A year is a long time. The world has changed in many ways, and technology has advanced in just as many, but completely different ways. I have also...
View ArticleJeeLabs: Thank you
Thank you for many dozens of kind, encouraging, honest, and very helpful responses and suggestions over the past few weeks. I started replying to each one individually, but had to give up at some...
View ArticleJeeLabs: Getting started
Ok, here’s the deal: once a week there will be a post like this one, with links to one or more “articles”. These articles will cover some common topic, in small doses. There will be weeks with just one...
View ArticleJeeLabs: Getting started, episode 2
The articles this week continue on the path just started, hooking up a bare ARM chip, and making it do something silly. No soldering and (almost) no software installation involved.As before, keep in...
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FairTradeElectronics: MADE IN DÉCHARGE
En étudiant les objets souvenirs proposés aux touristes des pays du Sud, en Afrique, en Asie et en Amérique du Sud, nous retrouvons beaucoup d’objets réalisés à partir d’une matière première récupérée...
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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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FairTradeElectronics: MISFIT COMMUNICATION
Bouts de ficelles et Peer to Peer. Communication old school ou apaiséeDans l’idée de proposer un smartphone apaisé, capable de se connecter à des réseaux alternatifs, capable également de faciliter le...
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mharizanov: ESP8266 powered web server + LED control + DHT22...
The ESP8266 System-on-chip (SoC) has recently came out of nowhere and has been taking by storm the IoT DIY world. It is a $4.50 Wi-Fi capable chip that has remarkable specs, obsoleting overnight a...
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JeeLabs: Getting started, episode 3
The idea of starting out with the 8-DIP LPC810 ARM µC occurred to me not very long ago, when I discovered a simple upload mechanism based on the modified FTDI interface. It’s quite an intriguing idea...
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