pkkrusty
February 13, 2025, 9:56am
1
I believe this setup mirrors the functionality of official VE.Direct cables at a much lower price. All the usual caveats apply. No guarantees, might have comms problems, no support, etc…
Parts list:
2.0mm JST connector $0.40/ea (AliExpress link ) (Technically known as PH Connector)
PL2303HX USB to UART TTL Cable $1.20 (AliExpress link )
ADUM1201 magentic isolator board $1.35 (ali express link: a[dot]aliexpress[dot]com/_mL6Z9jV)
Total: $2.95
Probably would want to protect the isolator board with some heat shrink tube, but it works great!
7 Likes
yep make 10x cables for the price of 1x victron cable
they make a mini version of the ADUM1201 as well
could also use 90 deg headers to slim line it more for heatshrink / hot glue / poxy filling
pkkrusty
June 26, 2025, 12:00pm
3
Yeah I recently got some 90 degree headers, that would make a nicer cable.
cz8pru
October 3, 2025, 6:42am
4
VE.Direct is RS232, not TTL, how does it work for you without rs232 conversion?
pkkrusty
October 3, 2025, 9:00am
5
Pretty sure VE.Direct is TTL, not RS-232. RS232 is a differential signal, and VEDirect works off gnd/3.3v (or 5v).
cz8pru
October 3, 2025, 12:56pm
6
OK, I see, I just ckecked…. just not sure. Thx for answer.
