If you take a look to the circuit scheme published in the Alphanumeric LCD with Shift Register on Arduino you can see that there is the pin number 9 that is NC (not connected). In the shift register ...

SCHEMATIC The RTC was included to provide time tag and a the channel index is appended to the start of the saved data. Because the logging data applications are external and on-demand, the serial ...

Upon receiving the request, the Arduino should read the distance data from the Sharp sensor and send it back to the ESP32 (arduino_part.ino). The positive of the battery should be connected to the Vin ...

Adding USB functionality to your Arduino projects used to be a pain, but thankfully, the V-USB project came along and gave your ATMEGA328 the ability to control the USB lines directly and mimic sim… ...