Using Stand Alone

Although the PTHAT has been designed primarily to fit and work with the Raspberry Pi, it can also be used stand alone or with other MCU’s.

 As shown below, you need to supply 3.3 Volts, 5 Volts and GND (0 Volts). Then simply connect up the Serial UART Transmit and Receive lines.
Using a USB > Serial converter works well such as the low cost ones that use the FTDI chips.

The nice thing about the one shown above in the picture is it can supply the 3.3 Volts and 5 Volts also.
Below is a connection diagram:

To test in stand alone mode on a PC for example, you can still use the Pulse Train Hat Serial Example application that can be found under the Raspberry Pi link.
Load the application into Visual Studio 2015 and change the Release from ARM to X86 and then choose local machine. Run it up and it should work fine.

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