111020001

  Grove – Encoder This module is an incremental rotary encoder. It encodes the rotation signal from the axis and output the signal by electronic pulse. The Grove – Encoder is one of the Grove series and has a standard Grove interface. When you need to add a rotary knob to your project, for example a volume knob for a speaker, a selection panel or a digital input, this will be your first choice. Features  Incremental encoder.  Grove Interface.  360 degree rotary. Specification Item Min  Typical  Max  Unit  Voltage  4.5  5  5.5  V  Current  10  20  30  mA  Dimension  20x 20 mm Net Weight  12 g Platforms Supported Arduino Raspberry Pi  BeagleBone  Wio  LinkIt ONE            Caution The platforms mentioned above as supported is/are an indication of the module's software or theoritical compatibility. We only provide software library or code examples for Arduino platform in most cases. It is not possible to provide software library / demo code for all possible MCU platforms. Hence, users have to write their own software library. Getting Started Note If this is the first time you work with Arduino, we firmly recommend you to see Getting Started with Arduinobefore the start. Play With Arduino Hardware  Step 1. Prepare the below stuffs: Seeeduino V4.2 Base Shield  Grove ‐ Circular LED  Grove ‐ Encoder           Step 2. Connect Grove-Encoder to port D2 of Grove-Base Shield.  Step 3. Connect Grove-Circular LED to port D5 of Grove-Base Shield.  Step 4. Plug Grove-Base Shield into Seeeduino.  Step 5. Connect Seeeduino to PC via a USB cable. Note If we don't have Grove Base Shield, We also can directly connect Grove-Encoder and Connect Grove-Circular LED to Seeeduino as below. Seeeduino 5V GND D3 D2 Grove-Encoder Red Black White Yellow Seeeduino 5V GND D6 D5 Grove-Circular LED Red Black White Yellow Note If you want to change to other port for Grove-Encoder, please change the digitalRead(2) and digitalRead(3) in Encoder.cpp. Software  Step 1. Download the Encoder Library, CircularLED Library, TimerOne Library from Github.  Step 2. Refer How to install library to install library for Arduino.  Step 3. Copy the code into Arduino IDE and upload. If you do not know how to upload the code, please check how to upload code. 1#include 2#include 3#include 4CircularLED circularLED(6,5); 5 6unsigned int LED[24]; 7int index_LED; 8void setup() 9{ 10 encoder.Timer_init(); 11} 12void loop() 13{ if (encoder.rotate_flag ==1) 14 15 { if (encoder.direct==1) 16 { 17 index_LED++; 18 if (index_LED>23) 19 index_LED=24; 20 SenttocircularBar(index_LED); 21 } 22 else 23 { 24 index_LED--; 25 if(index_LED