Plug the RFID module into the breadboard with enough space around it. Connect the VCC pin to the Arduino's 3.3V (not 5V), and ...

It can be very helpful when you want to measure the outside, inside or other temperatures in the same time but you don’t want to use a lot of pins of your Arduino board. I2C protocol makes it easier ...

Step-by-step guide on designing and programming a custom I2C slave sensor device using Arduino. Trump overpowers Musk's ...

Some Arduino boards feature the I2C pins in different places, and you can check out the full hardware requirements for all Arduino boards on the Wire Library Reference page. This gives you access ...

I2C expanders, or ADCs will give you plenty of pins for whatever project you have in mind. All these require extra components, though. Enter the ExtraCore library for Arduino, a software library ...

To link a standard 16×2 LCD directly with the microcontroller, for instance Arduino, you would need atleast 6 I/O pins to talk to the LCD. However, if you use an LCD module with I2C interface, you ...

The Arduino is an open hardware platform ... In addition to the ICSP, you get the pins in UART order and an I2C header. Vcc is switch selectable for 3.3 or 5volts. The reset switch has been ...

LED_BUILTIN is defined as "13" in pins_arduino.h ... In future articles, we'll explore programming Arduino devices, shields, and busses such as I2C and SPI, and creating complex device environments.