Master Slave using I2C

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peeknot
Posts: 24
Joined: Thu Dec 14, 2017 3:08 pm

Master Slave using I2C

Post by peeknot » Tue Jan 30, 2018 1:20 pm

I have a "bluepill" serves as master and a "arduino due" as a slave. Im trying to test this example https://github.com/rogerclarkmelbourne/ ... anner_wire if the bluepill can detect the due
No I2C devices found
, I connect the sda and scl of the due to bluepill`s pin PB7,PB6 simultaneously. But it cant scan anything , note this is my first try on using master slave communication. or a newbie wanna be. Im browsing some old post regarding to this but the ones I see was old ones , any ideas will be a big help.

Thanks

Ren

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mrburnette
Posts: 2226
Joined: Mon Apr 27, 2015 12:50 pm
Location: Greater Atlanta
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Re: Master Slave using I2C

Post by mrburnette » Tue Jan 30, 2018 7:57 pm

Ren,

Have you seen this thread:
viewtopic.php?t=1615

Ray

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