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Comments on CAN BUS monitoring with a LED

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CAN BUS monitoring with a LED

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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 !

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CAN-bus
posted 11 months ago
11mo ago
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Marian_20099‭
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What do you have? (1 comment)
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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 11 months ago
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TonyStewart‭
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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 11 months ago · edited 11 months ago
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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
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Either solution sounds over-engineered IMO. If you have a CAN bus, you have a MCU, so why not use the MCU?