An open source magnetic encoder with multiple interfaces and configurations. Designed for robotics and motion control applications.

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OpEncoder is an open source magnetic encoder hardware designed for robotics and motion control applications. It is based on AEAT-8800 IC from Broadcomm. Some features are:

-16-bit resolution (0,0054 degrees ?!)
-PWM output mode
-SSI interface
-UVW interface
-ABI interface
-24 mA current consumption during normal operation conditions
-2,5mm x 2,5mm PCB size

Design and production files of OpEncoder Lite V.1.0 are attached to the project, also they could be found at github page of project. The lite version is intended for size-critical applications and enviroments.

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Pavel wrote 04/15/2020 at 09:16 point


I cant find any files. Can you upload it please? 

Thank you, 

BR Pavel

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mco wrote 02/02/2020 at 11:24 point

hi, I am trying to use this ic with microprocessor. But i didn't find any information about OTP mode. At OTP mode, is supposed to operating 5.6V, my microcontroller operate with 3.3V  then i don't know  what will be the voltage of 10( SSI_SCL_SPI_CLK), 11(SSI_NSL_SPI_DI) , 12(SSI_DO_SPI_DO),21(SSI_SPI_SEL) at OTP mode. This mode can damage my processor, Do you have any idea ?

At datasheet of AEAT-8800-Q24 says An internal voltage regulator allows the AEAT-8800-Q24 to operate at either 3.3V or 5V supplies. If this encoder operate lower voltage than 3.3V at inside, Will not give more than 3.3v to its output?  I'm talking for otp mode.

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Luis wrote 08/09/2020 at 03:21 point

OTP mode it's only for reprogram the sensor.

In normal conditions everything is at 3.3V.

On the other hand, if you want to program the sensor because you want it to start in certain mode or with different parameters, then, you have to put 5.6V in the VDD pin of the sensor, but the rest should be 3.3V

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