Two Serial Ports RS485 and RS232 Stackable HAT for Raspberry Pi (v2.0) _Maker you can also update the

you can also update the firmware on your BLEFriend over the air using any BLE-supported iOS or Android device

This means no external USB-to-serial chip is needed

and more with a simple swipe of your hand

resolution: 64 x 48

Two Serial Ports RS485 and RS232 Stackable HAT for Raspberry Pi (v2.0) _Maker you can also update theThis stackable HAT is an add on board for Raspberry Pi that provides two UART ports supporting both RS485 and RS232. The latest versions of the Raspberry Pi have up to four UART ports on the GPIO connector, but you cannot use them without a physical layer transceiver. This HAT is the perfect solution for connecting your Raspberry Pi to serial devices like sensors and industrial equipment. It supports RS485 and RS422 communication protocols, making it