Here is the circuit of an Arduino-based Panic Alarm ... variable for reading the Input Pin status void setup() { pinMode(rlyPin, OUTPUT); // Set Relay as output pinMode(sensPin, INPUT); // Set Switch ...

Using MegunoLink Pro, the min/max temperature points can also be set without uploading a new sketch to the Arduino. From the temp vs time graph ... unit on/off via a relay connected to the ...

Droplet and StackAR, developed by MIT’s Media Lab, allow users to set timers or program an Arduino using light-based communication. By pressing the tool against a screen, flashes of light can ...

Inside is a RTC (real time clock) with battery backup for timekeeping along with an Omron 5V relay to drive the garden lamps themselves. This particular relay comes with a switch that can force ...

It’s a fairly simple project, too: just hook an Arduino Uno up to ... the PIR sensor and power relay into the Arduino. With your fan unplugged, turn it on and set it to your preferred cooling ...