Artificial Intelligence is quickly becoming an important ingredient for IoT projects’ success, a requirement for unlocking its full potential and providing a competitive edge to those that embrace it. AI naturally integrates into existing connected sensor/actuator networks and immediately adds…
I guess I need an exabyte-sized HDD to fit this raspberry pi image.. recommendations? #RaspberryPi
I will be doing a tech talk on topic “Hardware and firmware considerations when designing low power battery operated wireless edge nodes for Internet of Things applications” at an event organized by DEV.BG. Join me on April 18th, starting 19:15…
I will be doing a tech talk on topic "Hardware and firmware considerations when designing low power battery operated wireless edge nodes for Internet of Things applications". Join me on April 18th, starting 19:15 @ IT step academy https://goo.gl/Txgy7K #IoT
Enhancing my ordinary IP security cameras with #AI, pumping recognized objects data to #MQTT .. isn't #IoT cool? Blog post soon ..
New post: Where are the IT jobs in Sofia? https://harizanov.com/?p=4411
I had a chat with a colleague the other day, discussing his property purchasing plans. He shared that the proximity to workplace is important for him. Planning in the long term, he asked me what districts of Sofia would be…
Upgrading my fan coil thermostats http://harizanov.com/?p=4385 #IoT #HVAC #heatpump
We use a DIY air-to-water heat pump for climate control (heating/cooling) of our house with a combination of water underfloor heating and fan coils in the rooms. The fan coils are equipped with basic thermostats that allow for heat/cool mode setting,…
New post: Internet connected fire/smoke alarm project http://harizanov.com/?p=4376 #IoT
This project is an upgrade to a previous project of mine – the DIY IoT smoke alarm. It is a more advanced version that uses dedicated hardware rather than the generic “Funky” project + external components. In essence, the module…
New post: High security keyfob project http://harizanov.com/?p=4362
This project is about creating a high-security keyfob using Atmel’s ATSHA204 hardware authentication device. It was inspired by this post about security and signing. Many modern key fobs use various security techniques to prevent replay attacks, yet it turns out it is…
New post: BBoilRF http://harizanov.com/?p=4341 #IoT
This blog post is about a project I have been working on lately, the BBoilRF. It is a general purpose internet-connected relay actuator/gateway with support for low power, battery operated remote wireless sensor nodes. It was designed primarily for use…
Prototype of RF fireduino 🙂 #RFM69 #arduino #IoT
Making good progress on RFM69 keyfob project, already planning for v2 PCB
Secure #IoT keyfob project PCB just arrived
Working on a pretty secure keyfob for an #IoT project using atsha204 and RFM69
I will be doing a tech session on "#Security, Big Data and other challenges to the #IoT" at @ISTA_Conference 2017 https://www.istacon.org/Sessions/Session/12DCE70C-7085-4499-87DC-6D2954571FD5
Teardown of a 4ch #IoT relay board w/ power metering. Lack of galvanic isolation + narrow shared 40A live PCB trace makes me raise brows
Certification for the bboil #IoT thermostat project is completed. What an experience! #esp8266 https://bboilrf.com
Got some BLE beacons to fiddle with. Part of BLE beacon to MQTT #esp32 #IoT project
Testing 433Mhz coiled spring antennas on rfm69
Feeding the internet with even more cat images via @SpritesMods's esphttpd running on #ESP32 esp-idf #IoT
#ESP32 BLE iBeacon to #MQTT proof of concept bridge project.. #IoT
Needed to do quick and dirty PoC test using RFM69 on a breadboard,2mm pich adjusted to 2.54mm
Prototype bring-up sucess
Rewiring messed up SMD connections on prototype board
Got my hands on a @Agilent DSO-X3034A for few hours today, lovely piece of equipment other than that you have to sell a kidney to buy one.
Did an #IoT tech talk at DXC Technology (HPE)
Working prototype of ultra low power (20 uA) LCD display for battery operated wireless temperature #IoT node