Seeed Grove - Mouse Encoder User manual
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Grove - Mouse Encoder - Seeed Wiki
https://wiki.seeedstudio.com/Grove-Mouse_Encoder/
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Grove - Mouse Encoder
Grove - Mouse Encoder is a type of mechanical incremental rotary
encoder with feedback data of rotary direction and rotary speed .
It features standard Grove interface that will save your lots of work
in wiring and programming. Also, it is well adapted to heavy duty
and a harsh environment. This product can be applied in toys,
robots, and consumer input devices.
[1]
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Grove - Mouse Encoder - Seeed Wiki
https://wiki.seeedstudio.com/Grove-Mouse_Encoder/
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[https://www.seeedstudio.com/Grove-%E2%80%93-Mouse-Encoder-
p-2607.html]
Features
Versatile for different environment.
Well adapted for heavy duty and harsh environment.
With detents and a nice feel.
Standard Grove interface for easier programming and wiring.
Accurate and reliable.
Applications
It is versatile for different applications in harsh environment such as
toys, robotics and consumer input devices.
Specications
Note
The rotating speed is designed to be less 1000 rad/min(radian per minute).
Tip
More details about Grove modules please refer to Grove System
[https://wiki.seeedstudio.com/Grove_System/]
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Grove - Mouse Encoder - Seeed Wiki
https://wiki.seeedstudio.com/Grove-Mouse_Encoder/
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Item Min. Typical Max.
Operating voltage(V) 3.3 5.5
Operating current(mA) 10 13
Duty(constant speed) 50%
Phase
difference(constant
speed)
π/4
Pulse per circle 12
Hardware Overview
Notes
1. There is no knob included in product list. Because we think it will make
this encoder more versatile for different environments.
2. You can nd dimensions [https://les.seeedstudio.com/wiki/Grove-
Mouse_Encoder/res/Grove-Mouse_Encoder_Dimensions.pdf] le in
PDF format, and you can customize a knob according to the
dimensions.
Tip
You can just use a suitable hexagonal screwdriver bit if you only are
building a prototype for your project.
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Grove - Mouse Encoder - Seeed Wiki
https://wiki.seeedstudio.com/Grove-Mouse_Encoder/
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Grove interface
Connect main control board such as Seeeduino board with driver
board.
Hexagonal opening
An opening you pass a knob through.
Parts list
Parts name Quantity
Grove - Mouse Encoder(no knob included) 1 PC
Grove - Universal Cable 1 PC
Get started
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Grove - Mouse Encoder - Seeed Wiki
https://wiki.seeedstudio.com/Grove-Mouse_Encoder/
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This section will show you how to build an IDE environment for
building applications with Grove - Mouse Encoder.
Refer to Seeeduino V4.2
[/Seeeduino_v4.2#Getting_Started_on_Windows](It is exchangeable
with Arduino board) for how to build a complete an IDE for your
applications, or read Arduino guide
[https://www.arduino.cc/en/Guide/HomePage] if you use Arduino
original board.
Basic demo
This demo shows how to detect position and detect direction.
Material required
Seeeduino V4.2
Base shield V2.0
USB cable (type A to micro type B)
Connections
Notes
1. Duty circle will be bigger if the speed of rotating is slow.
2. The pulse width (PW) will not be the same if rotating speed is not
constant.
3. The rotating speed is supposed to be low than 1000 rad/min or it will
lead to narrow output PW or cause damage to this encoder.
4. The output voltage will be uncertain (high or low voltage) for no
rotating circumstance since the position of pulse inside this encoder is
not certain.
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Grove - Mouse Encoder - Seeed Wiki
https://wiki.seeedstudio.com/Grove-Mouse_Encoder/
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Connect materials as shown below:
Code
1/* Read Quadrature Encoder
2* Connect Encoder to Pins encoder0PinA, encoder0PinB, and
3*
4* Sketch by max wolf / www.meso.net
5* v. 0.1 - very basic functions - mw 20061220
6*
7*/
8
9
10 int val;
11 int encoder0PinA = 3;
12 int encoder0PinB = 4;
13 int encoder0Pos = 0;
14 int encoder0PinALast = LOW;
15 int n = LOW;
16
17 void setup() {
18 pinMode (encoder0PinA,INPUT);
19 pinMode (encoder0PinB,INPUT);
20 Serial.begin (115200);
21 }
22
23 void loop() {
24 n = digitalRead(encoder0PinA);
25 if ((encoder0PinALast == LOW) && (n == HIGH)) {
26 if (digitalRead(encoder0PinB) == LOW) {
27 encoder0Pos--;
28 } else {
29 encoder0Pos++;
30 }
31 Serial.println(encoder0Pos);
32 Serial.println ("/");
33 }
34 encoder0PinALast = n;
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1. Copy the code and ash it into the controller board.
2. Open monitor window.
3. Turn the screwdriver bit to left or left to see what will happen.
The output:
Schematic Online Viewer
35 }
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