# Prerequisites

## Android 

Android must be at least version 6 (Marshmallow) or higher. 

You can download the app from here: 

<https://play.google.com/store/apps/details?id=com.dbnetsoft.RemoteRedirect>

## USB-RS232-Adapter

The chip on the USB-RS232-adapter should be any of the following:

* FTDI FT232R, FT232H, FT2232H, FT4232H, FT230X, FT231X, FT234XD
* Prolific PL2303

### Recommended adapters

* <https://www.amazon.de/gp/product/B0BYRW5J4K/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1>
* <https://www.amazon.de/gp/product/B07Y33RHB2/ref=ppx_yo_dt_b_asin_title_o02_s01?ie=UTF8&psc=1>