Tweeting from a Psion 5mx

Psion user, Kian Ryan, has managed to connect his Psion 5mx to the modern world (via a Raspberry Pi Zero) and send tweets with it. The hardware involved: a Raspberry Pi Zero; a Psion RS232 link cable; an RS232-TTL converter; a null modem adapter; a RS232 gender changer. You’re also going to need to Tweeting from a Psion 5mx