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 GND to the ground rail. For the data connections, wire SDA to Pin 10, SCK ...

Newer versions of the Arduino SPI library support transactions and the setup is very easy. In fact, transaction support in the Arduino library is something [Paul] worked on himself, and gets ...

Austrian firm Controllino has based its programmable logic controllers (PLCs) on Arduino modules. This is an example of how so ... a range of interfaces including SPI, I2C, RS232, RS485, and an ...

The original device now gets incorrect data. For the last several weeks, [Paul] has been working on a new Arduino SPI library, to solve these types of conflicts. In the above scenario ...

For MCUs with a serial parallel interface (SPI) module, such as the Freescale MC68HCxx line of MCUs, it is possible to face these high data rate challenges in an unconventional way. With the ...