Is there any quadrature counter board with multiple LS7366R? I need to control 12 servomotors and don’t want to design a PCB at this moment.
Hi RubenMechie,
Welcome to the DigiKey TeckForum.
I couldn’t find any boards with multiple LS7366R’s on board. The only one I could find is the MIKROE-1917, which contains only a single LS7366R.
One could conceivably hack something together with multiples of these boards without mounting them on a baseboard, though I would be worried about electrical and physical integrity for more than just proof-of-concept usage. Though you would prefer not to, I suspect that a baseboard PCB made for for multiples of these boards would be relatively simple to design and get produced.
3 Likes
Hello RubenMechie,
Instead of using the referenced counter IC I am wondering if a multiplexer daughter board for a microcontroller would work for your applicaiton.
Such as as this Multiplexer board for up to 48 analog and digital inputs or digital outputs to be used with an Arduino microcontroller.
1568-11723-ND
https://www.sparkfun.com/mux-shield-ii.html
Other Related Topics:
https://forum.arduino.cc/t/reading-quadrature-encoder/265752
https://docs.arduino.cc/libraries/quadratureencoder/
https://forum.arduino.cc/t/high-speed-quadrature-decoding-with-arduino/700681
2 Likes
Thanks for the suggestion. I may have to make it work using a secondary microcontroller to offload the counting (until I find another board with at least four LS7366Rs or design it myself). There is one from superdroidrobots, but too bad it’s not carried by DigiKey.
I can see why the LS7366 is an appealing part, as it takes care of handling the quadrature input, the counting, and the SPI output. It offloads quite a bit of potential code.
It would be challenging to implement 8 separate quadrature counters by muxing a bunch of I/O’s together and keeping track of the count on each inside a single MCU. It looks like that part is quite possibly just a pre-programmed MCU that acts as an interface between an encoder and the master MCU.
Nope, I was not able to find any board we carry with more than the single device on it.
1 Like