Internet of Things | Embedded Lab

Category Archives: Internet of Things

Send a note to your valentine “the IoT way”

Posted on February 2, 2017 by R-B Leave a comment

Valentine’s day is coming soon, and some of you must be ready to send a personal note to your long-distance sweetheart. Would you like to try something different this year? How about sending a warm note via internet, or more appropriately, “the IoT way”. Becky Stern posted a new Instructable about sending a valentine note over the internet using ESP8266 devices and Adafruit IO cloud platform. This project uses a small vibrating motor to gently wave a tissue paper heart and flash an LED when it receives instructions over the internet from another device. I built two versions of the ESP8266 wifi

WiFi enabled anemometer

Posted on January 30, 2017 by R-B Leave a comment

A wireless anemometer project using ESP8266 and Adafruit’s wind sensor is shared by graham22 on github. The wind sensor provides an analog output voltage proportional to the wind speed. The ESP8266 reads in the output voltage through its A/D channel, computes the wind speed, and displays it on a web browser upon receiving a HTTP request from a client machine.

WiFi switch for AC appliance

Posted on January 29, 2017 by R-B Leave a comment

Are you looking for a simple design of a DIY remote switch for controlling your AC appliances over WiFi, this Instructable provides details of making such a switch from scratch. The project uses ESP8266 WiFi module that communicates with a phone using the Blynk app. The entire circuitry is enclosed inside a box with a male plug that goes to the wall socket, and a female input plug for your device. The controller receives the power supply from the mains socket.

ESP8266 garage door opener and data logger

Posted on January 16, 2017 by R-B 2 comments

This ESP8266 controlled garage door opener activates the garage switch via commands send over an web browser. In addition, it also records the activities to a Google Sheet using the IFTTT.com services. There seems to be an unstoppable drive in the hacker DIY community for web based garage door openers and we were compelled to respond. The garage door opener we have opens/shuts from a push button switch that basically creates a short to connect two terminals on the garage door opening unit. That allows easy implementation because all that is required is a ESP8266 controlled relay wired across those two terminals

DIY IoT breathalyzer

Posted on December 3, 2016 by R-B Leave a comment

Dominic Peters shares his project about making an IoT breathalyzer using ESP8266 on Hackster.io. It uses the MQ3 sensor for detecting alcohol concentration on your breath. The ESP8266 reads the sensor data and post it to Cayenne IoT platform so that the data can be recorded and viewed over time from anywhere via internet. The device needs to be portable and durable if it should be used while under the influence. The 11.1 Wh/hr lipo battery provides about 8 hours of continuous use. All the components are stuck to the battery pack with thick double sided tape. I hope this provides

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