Frustrated with the prices for high quality grow light systems? Let's design a fully controllable, easy to adjust, open-source LED panel.
A low-cost way of controlling a model train layout using a mobile phone through DTMF.
Intrusion detection by the help of the PIR sensor. Whenever someone tries to come in signal will found in the form of a text message.
This project fixed my problems with hot and cold rooms and logs details about how it was done, to compare to my ecobee4 thermostat details.