Frustrated with the prices for high quality grow light systems? Let's design a fully controllable, easy to adjust, open-source LED panel.
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.
A low-cost way of controlling a model train layout using a mobile phone through DTMF.
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.
Display board using GSM module.
A simple tutorial and setup for this multi-function module, with a built-in thermostat, humidity sensor, clock and alarm feature.
Let's test this shield.