Raspberry Pi - Connecting MCP23017/MCP3008/ULN2803

[idem]

Hi all,

just asking if it possible to use with my raspberry Pi a MCP23017, [b]AND [/b]MCP3008 [b]AND[/b] a ULN2803 (or L293D ).
The MCP23017 to extend RasPi GPIO
The MCP3008 for the DAC and ...
The ULN2803 (or L293D ) for my stepper motor.
I had to use a DS18B20, a PIR sensor, a Magnetic Door Sensor , a photoresistor (LDR), ... .
And for future, a LCD or multi led panel

[DirkS]

After googling around for about 55 seconds I come to the conclusion that the answer is 'yes'.

[jamesh]

I've updated the thread title so people might actually know what the topic is about.

[idem]

Reading spec, I think so...but someone had ever do it?

[FTrevorGowen]

I've used a MCP23017 in a "Slice of PI/O" add-on board (http://shop.ciseco.co.uk/k002-slice-of-pi-o/ ) and there are other similar boards (FWIW for my "efforts" dive into my webpages - link on the right). I've not yet used the MCP3008 (although I have some to try). Also see "I2C" and "SPI" threads in other parts of this forum and also in the wiki.
Trev.

[DirkS]

There are a couple of posts on 'Adafruit Learning' where some of the parts you mention are used (ULN2803, DS18B20, ...). See http://learn.adafruit.com/category/learn-raspberry-pi

Gr.
Dirk.

[idem]

Hi Dirk,

I used them separatly, and I know that there are howto for them on the learning.adafruit.com
I just want some feedback from people who use them together....

Regards,
idem2lyon

[Antivirusvivente]

I bought a MCP23017, i was wondering if it's possible to plug a DS18B20 and reading the temperatures correctly. Anyone knows?

[yv1hx]

I bought a MCP23017, i was wondering if it's possible to plug a DS18B20 and reading the temperatures correctly. Anyone knows?

Hello Antivirusvivente:

Have a look here: http://www.raspberrypi.org/phpBB3/viewt ... 35#p239335