Data Sheet

Rotation Sensor User Manual Waveshare
1
Rotation Sensor User Manual
1. Features
Operating voltage
3.0V-5.3V
Pulses outputted per
circle
15 pluses
Dimensions
32.0mm*15.0mm
Fixing hole size
2.0mm
Operating principle:
Incremental encoder is a kind of rotation sensor for translating the rotary
displacement into a sequential of digital pulse signal. The displacement can be
gained by counting the number of the pluses outputted in the course of
clockwise or anticlockwise rotation. Comparing with the potentiometer, the
rotary counter has no limit for counting. So, there is a reset button provided to
reset the counter to the initial state, restarting at 0.
2. Applications
This module can be applied to the location solution of industrial control.
3. Interfaces
Pin No.
Symbol
Descriptions
1
SIA
Work with SIB to judge the rotary
direction of the encoder
2
SIB
Work with SIA to judge the rotary
direction of the encoder
3
SW
Read the state of the reset button
on the encoder.
4
GND
Power ground
5
VCC
Positive power supply(3.0V-5.3V)
4. How to use
We will illustrate the usage of the module with an example of rotation detection
by connecting a development board.
① Download the relative codes to the development board.
② Connect the development board to a PC via a serial wire and the
module to the development board. Then, power up the development
board and start the serial debugging software. Here is the configuration
of the connection between the module and the development board.
Port
STM32 MCU pin
SIA
GPIOA.0
SIB
GPIOA.1
SW
GPIOA.2