The Arduino ESP8266 sketch in this repo allows you to build a solution that will send the status of two ultrasonic sensors over MQTT (which can be translated to the status of the garage doors in the ...

this ultrasonic transducer’s working frequency is 40 kHz. So, the purpose of using Arduino and this small piece of code is to generate a 40KHz high-frequency oscillation signal for my ultrasonic ...

Smart Blind Stick using Arduino Circuit Diagram. The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind people, detailing how the ...

The transmitter Arduino breaks down a given string into individual characters, and then further converts the ASCII to eight binary bits. These bits are sent out as tones, and are picked up on the ...

Ultrasonic Sensor Arduino Circuit Diagram and Explanation. The circuit diagram for arduino and ultrasonic sensor is shown above to measure the distance. In circuit connections Ultrasonic sensor module ...

The transmitter Arduino breaks down a given string into individual characters, and then further converts the ASCII to eight binary bits. These bits are sent out as tones, and are picked up on the ...