I was using my multimeter's built in temperature sensor to keep an eye on my little greenhouse. This is cumbersome and the multimeter doesn't support humidity and only runs in Fahrenheit. To replace this I used an ESP8266 ESP 12E WIFI Development Board, DHT11 Digital Temperature Humidity Sensor and a little bit of code.
One of the controllers on my daughter's slot car set broke. So instead of fixing it, we thought it would be cool to replace it with an Arduino, and race again the machine! Here is how we did it.Posted date: 2nd Apr 2017Electronics Fun
The two most common ways to power your Arduino is to use the onboard USB port and USB cable or use the built-in 9V battery plug. But this is cumbersome when building something that requires movement or with no access to USB power. Posted date: 27th Mar 2017Electronics Fun
