Found an energy harvesting board that I designed ages ago in my drawer. Never ceases to amaze me how this works, made a video of it working off a peltier element and a t delta of 10 degrees C. Thinking of creating harvestduinoRF? #WearableTech #IoT
My CV as a word cloud
Fiddling with noname #esp8285 (not esp8266!) smart plug. Build quality is better than Sonoff S20, relay rated 16A. Difficult to reflash though as no header with TX/RX is exposed
Not that I used it much, but I just #DeleteFacebook over privacy concerns
Got featured on @hackaday .. again 🙂 https://x.com/hackaday/status/976639868263542785
#darkflow running on #RaspberryPi 3B+ handles well image recognition with light yolo weights
Grabbed a Raspberry Pi 3 B+
New post: Enhancing my ordinary security cameras with AI https://harizanov.com/?p=4439 #IoT #AI
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". 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
Upgrading my fan coil thermostats http://harizanov.com/?p=4385 #IoT #HVAC #heatpump
New post: Internet connected fire/smoke alarm project http://harizanov.com/?p=4376 #IoT
New post: High security keyfob project http://harizanov.com/?p=4362
New post: BBoilRF http://harizanov.com/?p=4341 #IoT
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)