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MarginallyClever / MDB-Sniffer

Sniff a Multidrop Bus data stream and make it human readable
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Unlabeled Capacitors #6

Closed danielchristiancazares closed 7 years ago

danielchristiancazares commented 7 years ago

How many farads are the capacitors meant to be?

They're currently labeled with a question mark.

i-make-robots commented 7 years ago

the image comes from the nottinghack mdb device project. I don't know.

On Fri, Jan 20, 2017 at 7:21 PM, Daniel Cazares notifications@github.com wrote:

How many farads are the capacitors meant to be?

They're currently labeled with a question mark.

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danielchristiancazares commented 7 years ago

I'll investigate and update the image if I get that schematic working.

danielchristiancazares commented 7 years ago

Update for anyone seeing this in the further. I ended up making a single Arduino Uno shield rather than going through the trouble of using 2 Arduino, but this data sheet for a National Semiconductor LMT2576T-ADJ (http://www.futurlec.com/Datasheet/Linear/LM2576T-ADJ.pdf) shows a diagram with a 100 microFarad capacitor on the left, a 100 microHenry inductor and a 1000 microFarad capacitor.

Hopefully that helps anyone wanting to get this working.

i-make-robots commented 7 years ago

I imagine your arduino is using hardware serial to talk to the MDB. How then do you send commands to the arduino? You can't talk to it with serial through the USB because that's now busy talking to MDB.