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USB to Serial boards to program Arduino Pro Mini boards

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red-scorp/USB2Serial

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USB2Serial project

USB to Serial board came as a helping board for my another my project. I had to program a number of cheap Arduino Pro Mini clone boards in a row. The problem I was having was to mix up cable all the time. I decided to fix this issue once and for all by creating a simple USB to Serial interface board which will connect directly with Arduino Pro Mini correctly.

USB2Serial_CH340G_v1.2

USB2Serial_CH340G_v1.2 is a simple USB to Serial board based on CH340G chip, created especially to fit well with Arduino Pro Mini boards.

Preview:

USB2Serial_CH340G_v1.2 preview

Schematics in PDF format

Features:

  • based on very cheap CH340G chip
  • locked pins for Pro Mini
  • configurable for 5V and 3.3V

CAM files are available. BoM and PnP files for JLCPCB are available.

USB2Serial_FT232RL_v1.0

USB2Serial_FT232RL_v1.0 is a simple USB to Serial board based on FT232RL chip, created especially to fit well with Arduino Pro Mini boards.

Preview:

USB2Serial_FT232RL_v1.0 preview

Schematics in PDF format

Features:

  • based on more common FT232RL chip
  • locked pins for Pro Mini
  • configurable for 5V and 3.3V

CAM files are available. BoM and PnP files for JLCPCB are available.

USB2Serial_CP2102_v1.0

USB2Serial_CP2102_v1.0 is a simple USB to Serial board based on CP2102 chip, created especially to fit well with Arduino Pro Mini boards.

Preview:

USB2Serial_CP2102_v1.0 preview

Schematics in PDF format

Features:

  • based on more common CP2102 chip
  • locked pins for Pro Mini
  • configurable for 5V and 3.3V

CAM files are available. BoM and PnP files for JLCPCB are available.

Links

How to help

Your contributions as code, resources, or finances are welcome! Please contact me directly via email at [email protected] or through my GitHub profile.

If you'd like to make a financial contribution, you can donate via PayPal or Ko-Fi. Your support is greatly appreciated.

Thanks in advance!