The power of data analytics
One of IoT application for the smart home: electronic appliance energy monitoring. I used Sonoff PoW as the measuring and switching device. To be integrated only into our private network, we need to flash the firmware. I used Tasmota’s ESP8266 firmware (https://github.com/arendst/Sonoff-Tasmota) and followed the instruction given in the web (Disclaimer: you have to solder … Read moreEnergy monitoring device
Reflecting from the fire in the Office of Ministry of Transportation This is an industrial-grade smoke detector that sounds very noisy and transmits an “RF-433 MHz alarm” when exposing heavy smoke (e.g., in case of fire). I converted it to a network device using an MQTT-RF bridge, so:1) it can be monitored anywhere, anytime, and … Read moreIntegrating RF smoke sensors into Smart Home
Our Android phone is by default equipped with multiple sensors, e.g., accelerator sensors, magnetic field, photo light detector, noise level sensor, etc. I have an unused LG G4 which I turned into a sensor device. To convert the sensor readings into MQTT message, Sensor Node Pro is used. Telegraf is embedded to the MQTT server … Read moreAndroid sensors to Smart Home
Democratization is a trending word in today’s era, i.e., private-owned have to be community-driven, vendor to be open source, elite to be everybody, locked to be freedom. In the hardware domain especially in switch/routing technology that is dominated by just a bunch of vendors, democratization can be seen in the advent of new technologies such … Read moreOpenWRT: Network Democratization
There are at least 4 competing IoT connectivity technologies that have already numerous rolled-out products in the market, i.e., RF-433 MHz, WiFi (ESP8266-based devices), Zigbee, and Zwave+. The first two have abundant cheap products, the other two have limited vendor-independent commercial products. I saw a lot of Zigbee & Zwave vendor-locked devices at IoT Expo … Read moreZwave+ vs. WiFi-based IoT devices