If you’re going to develop another Arduino ... an SD card slot, and EEPROM on its base. The attached shield—dubbed the “Ambient Board”—is a buffet of sensors: temperature, humidity ...
Inside [Klaus]’ device is an Arduino Uno, an HC-SR04 ultrasonic distance sensor, and an Adafruit Wave ... courtesy of an SD card and a soothing female voice. Right now, the voice is set up ...