pulling data through diagnostic port - Honda CBR500R Forum : CB500F and CB500X Forums
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post #1 of 6 (permalink) Old 05-02-2018, 06:29 PM Thread Starter
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pulling data through diagnostic port

hi everyone.

I looked through the forum and didn't find similar thread so creating a new one.

I'm interested in certain data from my motorcycle while riding a bike.
basically i'm interested in getting fuel level(in percentage) avg consumption and current consumption.
I know we have that data on the display however I'm interested in collecting and storing that data on my smartphone.
Did anyone tried to connect Arduino/Raspberry Pi to diagnostic port and reading some of the params above?

I know there are out of the box solutions on market(healtech obd) however it is kinda expensive one and it works only on windows OS.

Thanks in advance for any suggestions.

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post #2 of 6 (permalink) Old 05-17-2018, 05:49 PM Thread Starter
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if anyone interested found this projects.gonzos.net/ctx-obd (can't post links)
now trying to understand how to build a board :
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post #3 of 6 (permalink) Old 05-20-2018, 04:49 PM
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I've been working on a small project to interface the CB500F ECU with a small Bluetooth low energy gadget. You can find the projects in Github:


This BLE based interfacing hardware can send the ECU messages wirelessly to a smartphone. Realtime information can be shown in phone screen and logging can also be done.

I have tested this for a some time now and it is working fine.
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post #4 of 6 (permalink) Old 04-02-2019, 04:30 AM
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does this also show afr's?
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post #5 of 6 (permalink) Old 04-02-2019, 12:19 PM
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tagged . imterested in this
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post #6 of 6 (permalink) Old 04-02-2019, 12:40 PM
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The bike only has a narrow band O2 sensor, so anything what the ecu measures is relatively accurate about when it crosses Lambda 1 or Equivalence ratio 14.7 but anything lower or higher is wastly inaccurate or I'd rather say indicative whether it's richer or leaner than Lambda1.
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