The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind ...
Inside [Klaus]’ device is an Arduino Uno, an HC-SR04 ultrasonic distance sensor, and an Adafruit Wave Shield. Originally, this parking/distance sensor used a small TFT to display the distance to ...
For [Jianjia Ma]’s QingStation, he decided to build another type of wind sensor: An ultrasonic anemometer ... include an optical rain sensor, light sensor, lighting sensor, and a BME280 ...
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