The standard way to connect a serial port (RS232) to an Arduino (or any 0V/5V based serial interface) is to use a dedicated IC like MAX232A. With this IC, you don't need a 9V battery like with my ...

This sample shows how to control Arduino with .NET using serial port. Sample consists of two parts: Arduino Playground Express app lighting 2 RGB LEDs in a circle (there are 10 LEDS in a shape of ...

To do so, the Arduino was set up to monitor the BUSY line on the printer’s parallel port, setting the CTS line active whenever the busy line was inactive. With our task made clear, hours of ...

Introduction:In Arduino environment, it's convenient to access BT SPP like a serial port and react to the command string sent from the BT serial port. Many Arduino projects have utilized this way ...

This simple WiFi serial port monitor would have saved us a lot of trouble. We can’t count how many times where being hooked into an Arduino with USB just to get the serial out has nearly been ...

2. Match the band rate on the Serial Port The Serial Monitor on the computer and the Serial Port on the Arduino must have the same data rate (baud rate). Usually, the baud rate is 9600, so the ...