For the connections, all we are doing here is connecting the HC05 to the Arduino. The Receiver (Rx) pin of the HC05 operates at the 0V to 3.3V range and the Arduino operates at the 0V to 5V range. So, ...

This project presents a simple circuit built with an Arduino Uno, where each of the four buttons controls one LED. Pressing a button turns on the corresponding LED. Each button is connected to a ...

This is a small Arduino based two button MIDI foot switch for the Helix ... Luckily MIDI works with 3.3V, so if you are using the 3.3V version you have to change the resistors for the MIDI TX line ...

Canadian electronics geek and nascent YouTuber [Technoyaki] wanted to measure 20 volt signals on his Arduino ... Instead of using two resistors, [Technoyaki] decides to build an analog circuit ...

In this tutorial, we learn about the SPI protocol and how to use it in Arduino ... slave select value to begin the transfer to slave from master. digitalWrite(SS, LOW); Here comes the important step, ...

In my case I have used only 3 x 330Ω resistors ... your Arduino installation directory. You will have to open the serial monitor window and press the remote buttons to find out what code does each ...

[feynman17] realized he could use the Arduino SPI library to communicate with this chip and built a small programming shield with just a few resistors and a 8-pin DIP socket to mount an ATtiny10 ...