Solved What is the difference?

What is the difference between Analog SPI & I2C, & Digital SPI & I2C!

?? :astonished:

what does "analog SPI & I2C" mean ?

these protocols use signal levels "0" and "1" not analogic values

Glossary helped me work this out.

Analog SPI (software) Digital SPI (hardware)

Problem solved

JB_AU:
Analog SPI (software) Digital SPI (hardware)

That doesn't make any sense. It is a misuse of the word "analog" in relation to electronics.

Glossary helped me work this out.

What glossary? Have you a link please. It seems to be rubbish.

JB_AU:
What is the difference between Analog SPI & I2C, & Digital SPI & I2C!

The question doesn’t seem meaningful.

The I2C pins are on the analog ports of the Uno, but that is just sharing pin functions. I2C and SPI are digital protocols.

Glossary helped me work this out.

Analog SPI (software) Digital SPI (hardware)

Perhaps you mean “bit banged” rather than analog.

SCA1000/1020 Series- 2 axis accelerometers (halfway down the page)

Analog (0 to 5 Volts) and digital (SPI) output interfaces

http://gnn-components.com/stock/detail/22/570/VTI_Technologies/VTI_Technologies.aspx

That doesn't say Analog SPI. It says Analog OR SPI (you chose which to use).

The Analog interface will output an analog signal with a range of 0-5V. You would have to feed this into an ADC.
The SPI interface allows you to read the output digitally from registers in the device. No need to use an ADC.

Agreed. If someone said you can walk/ride to a destination that doesn’t mean there is a new method of transport called “walk ride”.

That doesn’t say Analog SPI. It says Analog OR SPI (you chose which to use).

That means Analog is 0 - 5 volts? & Digital SPI output?

Analog or digital (I2C) interface

This would also mean ? In overview!
http://www.futureelectronics.com/en/technologies/semiconductors/analog/sensors/proximity/Pages/1191055-MPR084Q.aspx?IM=0

JB_AU:
SCA1000/1020 Series- 2 axis accelerometers (halfway down the page)

Analog (0 to 5 Volts) and digital (SPI) output interfaces

http://gnn-components.com/stock/detail/22/570/VTI_Technologies/VTI_Technologies.aspx

OK, you misunderstood the spec :wink: - some devices have I2c output, some have SPI output, some analog output, and for others, you can chose analog or SPI output.
Too bad you didn't post the link with your question, my answer would have been the same as Tom Carpenter's in the post above :wink:

That doesn't say Analog SPI. It says Analog OR SPI (you chose which to use).

Were in the English language is the OR in this;

Analog (0 to 5 Volts) and digital (SPI) output interfaces

I only saw the and.

Agreed. If someone said you can walk/ride to a destination that doesn't mean there is a new method of transport called "walk ride".

I agree you can walk & or ride.

Analog or digital (I2C) interface

Forgive me, English is my native language.

JB_AU:

That doesn’t say Analog SPI. It says Analog OR SPI (you chose which to use).

That means Analog is 0 - 5 volts? & Digital SPI output?

Analog or digital (I2C) interface

This would also mean ? In overview!
http://www.futureelectronics.com/en/technologies/semiconductors/analog/sensors/proximity/Pages/1191055-MPR084Q.aspx?IM=0

yes for the devices that have Analog/SPI outputs
but analog doesn’t necesseraly mean 0-5V , you need to look at the datasheet :wink:

About the link, I had a quick glance at the datasheet here http://www.freescale.com/files/sensors/doc/data_sheet/MPR084.pdf and I only see a I2C interface . That makes sense, I might be wrong, but I can’t see how an analog output could be used for this device .

JB_AU:
Were in the English language is the OR in this;

Analog (0 to 5 Volts) and digital (SPI) output interfaces

Ok, that line says it has both an Analog interface AND a digital interface, two different interfaces, completely different interfaces, you can choose which to use. The Analog interface is an analog output signal which can range from 0 to 5 volts. The Digital interface is an SPI based connection.

I was commenting the following quote from the end column titled “Output” on the page to which you provided a link:

Analog/SPI

Which means you can use an Analog interface, OR (note the /) an SPI interface (heck, perhaps you could use both). In otherwords, two different interfaces are available. What it does not say is that there is an “analog SPI” interface - there is no such thing as an analog SPI interface.

(P.S. I was born in, and have lived in England all my life, so I too am a native English speaker)

JB_AU:

That doesn't say Analog SPI. It says Analog OR SPI (you chose which to use).

Were in the English language is the OR in this;

Forgive me, English is my native language.

really ?? :grin:
sorry XD