Come winter time, the hackerspace can get kind of cold. And in the summer, it can get darn hot! To give members a heads up of the current temperature in the ‘space before making the journey out here, we created a web-enabled temperature/humidity sensor.
The main device is an ESP8266 which reads a DHT-22 sensor. The temperature and humidity information is sent up to thingspeak.com. From there, a quick PHP script in our WordPress Widgets section can read and display the current temperature on the website. Since the DHT-22 can also do humidity, we opted for displaying that as well. Visiting the thingspeak page shows a graph of historical data.
October 10th, 2015 1:00PM – Cost: $45 – 2hrs
Interested in the Internet of Things ( IOT ) you have been hearing so much about?
Want to publish values from a sensor to the Internet or your LAN?
Interested in Low Cost Microcontrollers that have built in Networking?
If you answered yes to any of these questions, this work shop is for you. This workshop will introduce you to the ESP8266 family of Wifi capable Microcontrollers that are more powerful than an Arduino yet can be purchased for less than $5.
I finally got a chance to take some better pictures of this breakout board. My plan for this board is to
have a very generic set-up able to drive up to 3 bipolar stepper motors utilizing the ubiquitous and inexpensive Pololu drivers. The drivers plug into headers which I choose simply because I have a bunch of them laying around.