For the challenge, I wanted to send data from my computer's real serial port (RS232 9-pin connector). For that, I created an adaptor circuit because the voltages on a computer serial port are ...
DSC Alarm interface to SmartThings. Able to arm/disarm, monitor zone status and trigger the panic alarm. The IT-100 interface is connected to the communication and power lines of the DSC alarm panel ...
Today, GSM networks are widely-used, whether for making calls or sending SMSes. But some places need urgent messages like in colleges, railway stations, events, share market and so on, and this ...