This article is all about connecting your NXP Hexiwear device to an iOS or Android phone or tablet using Bluetooth Smart (BLE). The Hexiwear is a multi-sensor device based on the ARM Cortex M4 architecture, with a sidekick ARM M0 for the BLE connectivity and an on-board array of sensors in order to become aware of the world around it. … Read More
Visualization is an important part of any IoT deployment, especially when you are using sensors such as temperature, humidity, light etc. Plotting sensor data on a live updating line chart is what we discussed in our second installment, however, if you have a more continuous form of data incoming, such as a stream, you may want to visualize it as … Read More
Evothings Studio makes it easy to develop real mobile apps in JavaScript, also for distribution via the official app stores. This guide provides an overview of how to develop mobile apps using the smartphone’s Bluetooth Low Energy (BLE) capabilities. We’ll give you pointers to our latest tutorials and libraries, all ready to deploy and use with your Cordova application. Evothings … Read More
This is the Evothings Studio 2.1 Alpha 2. It’s a handful, and you’ll be one of the first to try it out! We work in shorter sprints nowadays; this means more releases, more excitement and more topical examples added every time. https://evothings.com/download-alpha There are three new micro:bit examples at large, in celebration of BBC’s release of the bespoke microcontroller sent … Read More
This is a followup article to Evothings does MQTT with Bluemix. This time we make the same application run but using our own MQTT server, showing how to get going with both VerneMQ and EMQTT using a real certificate from Letsencrypt.org. I also tried to use MQTT.js instead of the Paho library we used previously but I eventually gave up, … Read More
