I was using a cheap USB serial converter, but sometimes they didn't work correctly and I was losing time. 
So we decided to design our own customized board, with only the essential pins and the possibility to work at 1.8V
With the galvanic isolation and the possibility to work at different logic levels according to the target voltage.

What makes it special?

Thanks to the digital isolator MAX12931BASA+ the computer and your target board are electrically isolated.

• 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.
• This device is very helpful when your target project is not connected to ground.
• 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 FT230X:  baud rates from 300 baud up to 3 Mbaud.
• Compatible with Windows, Linux and MAC.
• Size of 40 x 13mm.
• 3kVrms digital galvanic isolators
• Working at 1.8V up to 5V.
• Tested in a climatic chamber from -20°C up to 80°C
• TX and RX LEDs indicators.
• Micro USB connector.
• Standard 2.54mm 4 pins female header.
• Protected by a transparent heat shrink sleeve.

Pinout:

Name	Description	Direction	Voltage level
+	Positive power supply	Input	1.8V - 5V
-	Ground	Input	0V
RX	UART RX	Input	same of +
TX	UART TX	Output	same of +

Check out our experiment with the main power supply: https://youtu.be/ReD4d7x2Pao

There are also the 4-port version and with a simple voltage translator available in my store

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