Seeed Grove User manual

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Grove - Circular LED - Seeed Wiki
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Grove - Circular LED
This is a unique ring– it has a orid body with 24 controllable LEDs.
Maybe it will drive the inspiration out of you to make a glowing
magic ring! There is a 1*1 square hollow-out in the middle of this
module, where you can place a Grove Encoder in and make it a
rotary visual encoder!
[https://www.seeedstudio.com/Grove-Circular-LED-p-1353.html]

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Grove - Circular LED - Seeed Wiki
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Features
Circular shape
24 LEDs, about 5.5 mA drive current for each channel.
Controllable LEDs with orid effects
Grove Interface.
Schematic
Specication

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Grove - Circular LED - Seeed Wiki
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Item Min Typical Max Unit
Voltage 4.5 5 5.5 VDC
Current / 5.5 for each
LED
mA
Dimension Ring Form:4.5 diameter cm
Net Weight 12 g
Interface

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Getting Started
Materials required

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Seeeduino V4.2 Base Shield
Get ONE Now
[https://www.seeedstudio.com/Seeeduino-
V4.2-p-2517.html]
Get ONE Now
[https://www.seeedstudio.com/Base
Shield-V2-p-1378.html]
In addition, you can consider our new Seeeduino Lotus M0+
[https://www.seeedstudio.com/Seeeduino-Lotus-Cortex-M0-p-
2896.html], which is equivalent to the combination of Seeeduino
V4.2 and Baseshield.
Note
1 Please plug the USB cable gently, otherwise you may damage the port.
Please use the USB cable with 4 wires inside, the 2 wires cable can't
transfer data. If you are not sure about the wire you have, you can click
here [https://www.seeedstudio.com/Micro-USB-Cable-48cm-p-1475.html]
to buy
2 Each Grove module comes with a Grove cable when you buy. In case you
lose the Grove cable, you can click here
[https://www.seeedstudio.com/Grove-Universal-4-Pin-Buckled-20cm-
Cable-%285-PCs-pack%29-p-936.html] to buy.


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Hardware Connection
Step 1. Connect the Grove - Circular LED with the D6 port of the
Base Shield.
Step 2. Plug Grove - Base Shield into Seeeduino.
Step 3. Connect Seeeduino to PC via a USB cable.
Seeeduino Grove - Circular LED
5V Red
GND Black
D7 White
D6 Yellow
Software
Note
If we don't have Grove Base Shield, We also can directly connect Grove -
Circular LED to Seeeduino as below.

Attention
If this is the rst time you work with Arduino, we strongly recommend you
to see Getting Started with Arduino
[https://wiki.seeedstudio.com/Getting_Started_with_Arduino/] before the
start.


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Step 1. Download the Grove - LED Bar Library
[https://github.com/Seeed-Studio/Grove_LED_Bar] from Github.
Step 2. Refer How to install library
[https://wiki.seeedstudio.com/How_to_install_Arduino_Library]
to install library for Arduino.
Step 3. Open Arduino IDE -> File -> Examples ->
Grove_LED_Bar -> BasicControl
Step 4. Uncomment the dene MY9221_LED_NUM 24 and
comment #dene MY9221_LED_NUM 10 as below.
Step 5. Upload the example to Arduino. If you do not know how
to upload the code, please check how to upload code
[https://wiki.seeedstudio.com/Upload_Code/].
Step 6. You can see the led is running from .C, 23 and AB
repeatly.
Play with Codecraft
Hardware
Step 1. Connect a Grove - Circular LED to port D5 of a Base Shield.
Step 2. Plug the Base Shield to your Seeeduino/Arduino.
Step 3. Link Seeeduino/Arduino to your PC via an USB cable.
Software
1//#define MY9221_LED_NUM 10
2#define MY9221_LED_NUM 24



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Step 1. Open Codecraft [https://ide.chmakered.com/], add Arduino
support, and drag a main procedure to working area.
Step 2. Drag blocks as picture below or open the cdc le which can
be downloaded at the end of this page.
Note
If this is your rst time using Codecraft, see also Guide for Codecraft using
Arduino
[https://wiki.seeedstudio.com/Guide_for_Codecraft_using_Arduino/].


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Upload the program to your Arduino/Seeeduino.
Schematic Online Viewer
Success
When the code nishes uploaded, you will see the LED run in the circular.


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Source
CircularLED Library [https://github.com/Seeed-
Studio/Grove_LED_Bar]
Grove Circular LED schematics PDF File
[https://les.seeedstudio.com/wiki/Grove-
Circular_LED/res/Circular_LED_v0.9b.pdf]

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Grove-circular LED eagle les
[https://les.seeedstudio.com/wiki/Grove-
Circular_LED/res/Grove-circular_LED_eagle_les.zip]
Codecraft CDC File [https://les.seeedstudio.com/wiki/Grove-
Circular_LED/res/Grove_Circular_LED_CDC_File.zip]
Tech Support
Please submit any technical issue into our forum
[https://forum.seeedstudio.com/].
[https://www.seeedstudio.com/act-4.html?
utm_source=wiki&utm_medium=wikibanner&utm_campaign=newpr
oducts]