Due to the new EU rules One Stop Shop (OSS) all the purchase from the EU countries should comply with their VAT obligations. Since Tindie doesn't support the VAT management i have removed all the destinations within EU. However all the items to all destinations are available on our site: https://www.duppa.net/shop/

What is it?

• This is a 4 port USB to UART converter with a digital isolator on the RS232 side

Why did you make it?

It often happens that i have to use multiple UART ports with multiple USB - UART converters with a result of a mess of cables and using all the USB ports of my PC.

For this reason, we have merged 4 of our single port version of USB - UART converters in only one board.

What makes it special?

Each port has the digital isolator The computer and your target board are electrically isolated.

• The 4 ports can work at different voltages and the ground is not in common.
• The noise coming from your computer doesn't enter in your target board, this can be useful when you are working with sensible analog circuit.
• The voltage levels of TX and RX are the same of your target board. This means that it doesn't matter if your board is working at 5V or 3.3V or 1.8V, the logic levels are always correct!

Technical data

• Original FTDI FT4232H-56Q
• Up to 12Mb/s each port
• Size of 55 x 50mm.
• The PC will see 4 different COM ports.
• MAX12931BASA+ or ADUM121N1BRZ isolator
• 3kVrms digital galvanic isolators
• Each ports can work independently at 1.8V up to 5V.
• Tested in a climatic chamber from -20°C up to 80°C
• TX and RX LEDs indicators
• USB type-C connector
• Optional transparent heat shrink sleeve
• Optional pin header of JST XH connectors

Working under: Linux, Windows, Android and Mac OS

You can order the board with different build options, with your chosen connectors pre-soldered on or left loose (you solder them on), and the board’s transparent heat-shrink sleeve shrunk on the board or loose in the packaging (you heat-shrink it on).

Pinout

Also the single port version is available in my store

Accessory

If you are interested to use with the Victron VE.Direct devices, check out also the cables! If you need this case make sure you have chosen the JST connectors option.

Shipping is done every Monday morning, please place the order before!

For other shipping option don't hesitate to contact me!