Controlling Digital Potentiometer AD5235

-

i'm not officially lost!

ive got ad5235(http://www.analog.com/static/imported-files/data_sheets/ad5235.pdf) replacing volume dial in audio amplifier.

i've got thing wired , coded per tut - http://www.arduino.cc/en/tutorial/spidigitalpot#.uwdmqhna7wn - doesn't work. see no change on wiper reading.

i've tried using 1 - http://www.reigndesign.com/blog/controlling-a-10-bit-digital-potentiometer-via-spi-with-arduino/

and, i've tried replicating once - http://forum.arduino.cc/index.php/topic,85837.0.html

all no avail.

this part of home cinema project, , else working bar last bit.

can offer me support?

thanks

martin

* pin 10 , ss defined output ??
* connection cables ok ?
* spi-mode ? ,  msb/lsb first ?
* pullups needed ?
* no mods in transfer speed
---------
when examples chip fail, closest mind check cables once more.
(remove power, disconnect all, make connections on again, (remenber 5v/gnd)
---------
if still doesnt work. hardware has faults. use scope check signals


Arduino Forum > Using Arduino > Project Guidance > Controlling Digital Potentiometer AD5235


arduino

Comments

Post a Comment

Popular posts from this blog

VIDIOC_S_FMT error 16, Device or resource busy - Raspberry Pi Forums

-
dear all, working on image processing using raspberry pi, have installed intex usb web camera on raspberry pi. have used basic python script of image processing https://www.cl.cam.ac.uk/projects/raspb ... first.html required libraries installed on raspberry pi. script code: import imgproc imgproc import * # open webcam take pictures camera = camera(160, 120) # open viewer window display images viewer = viewer(160, 120, "the first step") # take picture camera img = camera.grabimage() # display image in viewer viewer.displayimage(img) # iterate on each pixel in image x in range(0, img.width): for y in range(0, img.height): # value @ xth column , yth row, place intensities variables red, green, blue = img[x, y] # test find colour dominant if red > green , red > blue: # red dominant, set pixel red img[x, y] = 255, 0, 0 elif green > red , green > blue: img[x, y] = 0, 255, 0 else: # if red or gr
Read more

using a laptop skeleton to build a pi laptop - Raspberry Pi Forums

-
Image
i have laptop dead motherboard . can remove components laptop , in anyway possible connect raspberry pi inbuilt display , keyboard on laptop ? (and touchpad if possible). (i figured remove components inside , fix pie inside , use extended usb cable , connect available usb ports respective holes in laptop skeleton, same headphone out ) . i'm noob when comes pi . on topic appreciated if screen lvds type may possible use screen installing converter board. this: http://www.ebay.com/itm/hdmi-dvi-vga-dr ... 3027&rt=nc need model number of screen , ask seller if work. or search ebay using brand , model number. assuming screen in working order..... back-light not burnt out etc.. other devices...... can used if have usb interface not part of motherboard. have make connector. raspberrypi
Read more

Forum for Joomla? - Joomla! Forum - community, help and support

-
heya, i need forum joomla works community builder , not joomlaboard. im using jb right now, , not working me >< what other *proper* installations there available? i recommend smf, that's forum using here, see link on bottom of page. there's called smf/joomla "bridge" available, see http://extensions.joomla.org/component/ ... itemid,35/ Board index Joomla! Older Version Support Joomla! 1.0 Extensions - 1.0.x Components
Read more