I2C/SPI Quad Decoder

General project help for Adafruit customers

Moderators: adafruit_support_bill, adafruit

I2C/SPI Quad Decoder

Postby 020110348 » Fri Feb 08, 2013 7:43 am

Hi Everyone,
Im looking to upgrade my current CNC Setup. it currently has 2 250ppr encoders, I would like to be able to interface those directly to either a Raspberry Pi or Arduino Due. even just decoding the encoder one arduino (mega 1280) has a hard time keeping up.

The End-Goal: Have either one or two chips that i can request the current position from. E.x. command the controller to spin motor -> read from chip -> compare reading to desired -> adjust motor.

In summery i am looking for a chip that can decode a 5v Quadrature Encoder. AND Speek 3.3v I2C/SPI. to take the load off the controller.
020110348
 
Posts: 4
Joined: Mon Apr 23, 2012 7:22 pm

Re: I2C/SPI Quad Decoder

Postby Zener » Fri Feb 08, 2013 1:17 pm

http://www.avagotech.com/pages/en/motio ... ecoder_ic/

The last 2 in the list seem to be the most common, but you will have to look at the data sheets to see which will be best for you.
Zener
 
Posts: 1983
Joined: Sat Feb 21, 2009 1:38 am


Return to General Project help

Who is online

Users browsing this forum: No registered users and 3 guests

Stuff to buy from the Adafruit store and links to product documentation!


New Products [102]

Raspberry Pi[80]
 
FLORA[23]
 
Bunnie Studios[9]
 
FPGA[1]
 
mbed[11]
Arduino[60]
 
NETduino[14]
 
BeagleBone[24]
 
Android[6]
 
XBee[10]
More Dev Boards[30]


 
BoArduino[8]
 
SpokePOV[4]
 
TV-B-Gone[4]
 
MiniPOV[3]
 
SIM reader[3]
 
Microtouch[5]
 
Clocks & Watches[18]
 
Drawdio[4]
 
Brain Machine[1]
 
Game of Life[2]
 
MintyBoost[2]
More DIY Kits[16]


 
MaKey MaKey[3]
 
Tweet-a-Watt[5]
 
Young Engineers[33]
 
Discover Electronics[2]
 
Snap Circuits[4]
 
littleBits[3]
 
Project packs[8]


 
Breakout Boards[33]
LCDs & Displays[48]
Components & Parts[69]
Batteries & Power[49]
EL Wire/Tape/Panel[52]
LEDs[108]
 
Wireless[14]
Cables[60]
 
Lasers[6]
Sensors/Parts[145]
 
Enclosures/Cases[11]
 
Solar[11]
 
RFID / NFC[13]
Prototyping[69]
 
iDevices[13]
Tools[71]
 
Wearables[39]
 
CNC[37]
 
Robotics[29]
 
3D printing[1]
 
Materials[24]


 
Stickers[41]
 
Skill badges[55]
 
Books[25]
 
Circuit Playground[7]
 
Gift Certificates[4]