13.01.2021, 09:33
(This post was last modified: 13.01.2021, 09:34 by Erwin van der Zwart.)
No you can't use RS232 direct as the signal of the P1 port is TTL so you need a TTL converter in any case, i always use (advise) this USB cable where the converter is build-in:
https://www.robbshop.nl/slimme-meter-kabel
https://www.robbshop.nl/slimme-meter-kabel