The power of data analytics
As an online shopper, I need to regularly check my mailbox, 5 floors separated from home. It is really annoying to check whether a new delivery arrives. I came out with this mailbox checker solution that should draw low power (less frequent battery replacement, >6 months) and small (portable). To detect mailbox door activity, I … Read moreMailbox checker
Instead of buying an expensive and proprietary Zigbee gateway, I bought a Zigbee sniffer that could be “changed” to be a universal gateway (https://lnkd.in/dj9HwBF). The cheapest Zigbee device I could play with is the Ikea Tradfri lamp (~7 euro). But it’s more worth than buying a full set of Ikea smart lighting (cost > 25 … Read moreMy first experiment with Zigbee
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