Today’s IoT device

This is second iteration of IoT temperature meter. Again based on ESP8266 module, but more compact. Now powered with two AA batteries. Here is view to data. Posted from WordPress for Android

IoT Temperature Meter

This is a test project to build IoT temperature meter using ESP8266 WiFi module, DS18b20 temperature sensor and nodemcu. It sends temperature data to ThingSpeak. This test is based on ESP8266 + ds18b20 + thingspeak+ nodemcu article and it’s files on GitHub plus ds18b20.lua. ESP8266 + ds18b20 + thingspeak+ nodemcu article describes how to build

ThingSpeak open source IoT service

When building IoT (Internet of Things) applications, the cloud part where all information from sensors is important. There are many cloud services that can collect IoT data, but the fundamental issue here is that the Internet of Things does not have a standard set of open APIs for consumers. Well, there’s ThingSpeak, but it’s not

Nodemcu dev kit

I thouhgt I wanted to try IoT with ESP8266 easily, so I got Nodemcu dev kit to the test lua on ESP8266. The kit I got was NodeMcu Lua WIFI Development Board For ESP8266 Module from Banggood. The kit contains somewhat more (around 8 Euros) than bare ESP8266 module (around $3), but promises to provide

Happy hacking Day and ESP8266

Happy Hacking Day is non-commercial free tech-event for people, communities and companies. it provides visibility for the topics and projects which prefers free software and open source options. Let’s change the world a bit. Happy Hacking! The next event is held this week 8.-9.05.2015 in Helsinki, Finland. This time they have something that could be of

ESP8266 Ikea light IoT

I wrote yesterday on ESP8266 programming tools and let’s continue on the ESP8266 theme. Two days ago Hackaday had an interesting posting Internet Knows Your Every Move Thanks to IKEA and ESP8266. It describes how to combine ESP8266 WiFi module and IKEA Molgan PIR light. The stock PIR light simply lights when motion is detected,