Purpose:
Widely used in motor speed detection, pulse counting, position limit and so on.
Module Features:
1. the use of imported groove coupler sensor
2. the slot width 5mm.
3. the output state indicator lamp output high, output low lights.
4. with cover, high output; unobstructed, output low.
5. the comparator output signal clean waveform is good, driving ability, than 15mA.
6. Operating Voltage 3.3V-5V
7. the output format: Digital switching output (0 and 1)
8. a fixed bolt holes for easy installation
9. small plates PCB size: 3.2cm x 1.4cm
10. using a wide voltage LM393 comparator

Module for use:

(1) module slot unobstructed, the receiver tube is turned on,

 the module DO output low, cover when, DO output high.

(2) DO module can be connected to the relay, consisting limit switches and other functions,

    can also be connected with the active buzzer module, composed of alarm.

 

(1) GPIO wheel Encoder

Python WheelEncoder.py   DEMO

Python WheelEncoder.py   DEMO

Sudo python WheelEncoder.py  17  3  23                             

 17  GPIO for Encoder    3  Rotation   

  23  Motor connect to GPIO 23

Support our Pi_Scratch software   

Scratch control demo

Command “23” + “MOTORDIS” “17”+ “S” + “3” 

  17  GPIO for Encoder    3  Rotation   

  23  Motor connect to GPIO 23 

(2) i2c 23017 GPIO wheel Encoder

i2c wheel encoder python  I2Wheel.py demo

Sudo python I2Wheel.py  21 A  2  17 5

  21 = Address of the I2C 23017

  A = Bank A

  2 = Bit 2 / pin 2 (1 - 8)

  17 = GPIO Pin 17 , 18 for motor control through

    our L293D Motor control board

  2 = Rotate 2 times.

Scratch control demo

Command format

I2MOTORDIS[Address][Bank][Encoder Pin]M[Motor Pin]R[Rotations]

I2MOTORDIS21A2M17R2

 1. Address = 20 - 27, Address for the I2C  

2. DeviceBank = A or B ( Bank for the encoder ) 

3. Encoder Pin = 1 - 8 ( Pin number for the encoder )

4. Motor Pin = GPIO Pin number for the Motor   

    For example our Motor Board use GPIO 17 & 18  

    control 2 Motor forward & backward

5.  Rotations = How many rotations you want the Motor to do 

 before it stops.       minimum input 0.2