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I own a wifi-based OBDII adapter, but two things concern me about it that likely apply here as well. 1) It's always on, as the port is always powered, to my kn
by btgeekboy 10y ago
I own a wifi-based OBDII adapter, but two things concern me about it that likely apply here as well.
1) It's always on, as the port is always powered, to my knowledge. I usually only drive on the weekends. Should I be unplugging it after each drive?
2) Security. The wifi adapter presents an open wireless network; I assume security on these bluetooth modules is also similarly lacking. What can an attacker do given the device's built-in capabilities, and what else can they do if they're able to compromise it?
To the author of this package though, it looks great. As others have mentioned, there's lots of room for growth here, and you've got the key data pipeline established.
- serf 10y ago> What can an attacker do given the device's built-in capabilities, and what else can they do if they're able to compromise it? well, bmw DIY people have been using the OBDII port (over bluetooth, wifi, and cabled) to rewrite ECM fuel and ignition mappings between models for a very long time... the least clever destructive thing I can think of is just zeroing an ECM out as much as is allowed by the hardware. p.s. i'm sure other car communities do similar stuff; i'm just not well versed on them.
- btgeekboy 10y agoYikes. Well that pretty easily validates that decision to not leave it plugged in continuously.
- el_benhameen 10y agoI think the other poster has spoken to #2 pretty well, but as for #1, I've had a USB OBDII dongle plugged into my car continuously for the last two years without issue. I imagine the wifi chip causes yours to draw a bit more power than mine, though I previously had a Bluetooth module plugged in and it didn't present any issue either. I think it's likely fine.
- ianburrell 10y agoIt depends on the module and the car. Some cars power the ODBII port all the time. Some dongles are smart enough to stop drawing power. I had cheap Bluetooth dongle that drained battery a couple of times when left plugged in for week. Better one doesn't cause any problems.