Re: Bitx40 another Raduino(?) problem
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I'm not sure. The I2C interface can handle quite a few devices and the board does have the pullup resistors in place. However, given what the Si5351 is busy doing, I wonder how much bus traffic the interface can handle given that the interface is being controlled by a 16MHz clock. I don't have the EE background to answer that.
Jack, W8TEE
From: Jerry Gaffke via Groups.Io <jgaffke@...>
To: [email protected]
Sent: Wednesday, March 15, 2017 12:57 PM
Subject: Re: [BITX20] Bitx40 another Raduino(?) problem
Comes in handy right now. ?The Si5351 uses the I2C interface, so the etherkit Si5351 library silently grabs A4,A5. ? This might make it difficult to have other I2C devices on that bus, even if they have different I2C addresses than the Si5351. ?For example, an I2C LCD display might be trouble. ?I'm not really sure what the conventions are in the Arduino world.
On Wed, Mar 15, 2017 at 09:32 am, Jack Purdum wrote:
Also note that Farhan wisely left A4 and A5 open as these are often used for the clock (SCL) and data (SDA) lines of the I2C interface. That foresight could come in handy later on...
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