Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Users Search
Help Dashboard Sign In Sign Up
Q&A Papers Meta
Q&A
Posts Tags Edits
Ask Question

Comments on CAN BUS monitoring with a LED

Parent

CAN BUS monitoring with a LED

+1
−0

Hi, how can I use can bus monitoring through a simple led without disturbing the can line , I started with a diagram found on this forum, I need your help to correct where necessary, I want to use it as an external source (12-14v) Thanks !

Image_alt_text

CAN-bus
posted 12 months ago
12mo ago
user card
Marian_20099‭
6 reputation 1 0 1 3
History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.
Why should this post be closed?

1 comment thread

What do you have? (1 comment)
Post
+1
−0

You'll need a differential comparator, something like what was suggested in here. Image_alt_text But I'd look for a proper Canbus Rx and extract that to convert to single ended one shot to pulse for activity.

posted 12 months ago
user card
TonyStewart‭
393 reputation 0 45 39 82
History
Why does this post require attention from curators or moderators?
You might want to add some details to your flag.

1 comment thread

Any reason you don't use a CAN transmitter to convert CANsignals to a 5V-Signal? It is probably easie... (2 comments)
Any reason you don't use a CAN transmitter to convert CANsignals to a 5V-Signal? It is probably easie...
H_H‭ wrote 12 months ago · edited 11 months ago
copy link

Any reason you don't use a CAN transmitter [transceiver] to convert CANsignals to a 5V-Signal? It is probably easier.

Lundin‭ wrote 11 months ago
copy link

Either solution sounds over-engineered IMO. If you have a CAN bus, you have a MCU, so why not use the MCU?