Counter Click Board
IC/Module: LS7366R 32-bit CMOS Counter
LS7366R is a quadrature counter with a high 32-bit resolution. The CMOS counter offers direct interface for quadrature clocks from incremental encoders. It also interfaces with the index signals from incremental encoders to perform a variety of marker functions. It uses a 4-wire SPI/MICROWIRE bus for communication with a host microprocessor.
How Does It Work?
A rotary encoder on a DC motor outputs ENCA and ENCB signals which are out of phase to each other, ideally by 90º. Counter click takes them as input. To decode the signal, take the other end of those wires and connect them to the pinout on top of Counter click (in addition to ENCA and ENB, there’s also an ENCI pin, which is a programmable index). The decoded input is then used for non-quadrative, up/down, free running counting, and several other counting modes.
Counter clock features two zero-ohm SMD jumpers. The PWR SEL jumper allows for selecting a 3.3V or 5V power supply while the LFLAG (open drain latched output) or DFLAG (push-pull output) allow for setting the interrupt.
- Counter Click Board (1)
- 1x8 male headers (2)
- Printed User Manual and Board Schematic (1)
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