Add a teeny analog light sensor, the ALS PT19 analog light sensor is a great way to upgrade a project that uses a photocell and needs RoHS compliance.
This is a Near-IR Laser Distance Sensor with 2M range, and 100% compatible to a PING))) Ultrasonic Distance Sensor.
Grove Heart Rate Sensor Ear Clip that is perfect for experimentation!
This isn't a plain outdoor thermometer - it has a range of -50 to 600°C.
The H3LIS331DL is a low power high performance 3-axis linear accelerometer belonging to the "nano" family, with digital I2C serial interface standard output.
Grove - Serial Camera Kit includes one control board and two interchangeable lenses, one standard lens and one wide-angle lens.
Rotary Encoder module with integrated push button. Perfect addition to that Arduino project!
Solid, accurate way of determining if something with within range!
True real-time distance measuring up to 2M away!