NoticeDifference between revisions of "Colors Shield"
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Each RGB dot has 160K colors in theory, and it’s easy to use the 6bit correction register to calibrate the current error for each color LEDs – we don’t think that Rainbowduino use an adjustable resistors to calibrate the current error is a good idea, because just 1 lap the resistor change from 0R to1K , you cannot get the exact value you need, but now, you have a 6bit software value to correct it. | Each RGB dot has 160K colors in theory, and it’s easy to use the 6bit correction register to calibrate the current error for each color LEDs – we don’t think that Rainbowduino use an adjustable resistors to calibrate the current error is a good idea, because just 1 lap the resistor change from 0R to1K , you cannot get the exact value you need, but now, you have a 6bit software value to correct it. | ||
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| + | Go shopping [http://imall.iteadstudio.com/im120417002.html Colors Shield (IM120417002)] | ||
==Features== | ==Features== | ||
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==Download== | ==Download== | ||
| + | [ftp://imall.iteadstudio.com/IM120417002_ColorsShield/DS_DM163.pdf Datasheet for DM163] | ||
| + | |||
| + | [ftp://imall.iteadstudio.com/IM120417002_ColorsShield/DS_IM120417002_ColorsShield.pdf Datasheet for Colors Shield] | ||
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| + | [ftp://imall.iteadstudio.com/IM120417002_ColorsShield/DS_M54564fp_e.pdf Datasheet for M54564fp e] | ||
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| + | [ftp://imall.iteadstudio.com/IM120417002_ColorsShield/SCH_IM120417002_ColorsShield.pdf Schematic for Colors Shield] | ||
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| + | [ftp://imall.iteadstudio.com/IM120417002_ColorsShield/DC_IM120417002_Colorshield.zip Demo Code for Colors Shield] | ||
==Useful Links== | ==Useful Links== | ||
| + | [http://dattein.com/blog/arduino-build-light/ Franklin Dattein's Blog <Arduino Build Light>] | ||
| + | |||
| + | [http://www.arduinodev.com/arduino-obd-data-indicator-rgb-matrix/ by Stanley <DIY a fancy car realtime data indicator with Arduino & RGB LED matrix >] | ||
| + | |||
| + | [http://www.kickstarter.com/projects/l8smartlight/l8-smartlight-the-soundless-speaker by L8 SmartLight <L8 SmartLight :: The SoundLess Speaker :: for Phone/PC>] | ||
Latest revision as of 10:13, 7 August 2014
Contents
Overview
The Colors shield can directly plug on the Arduino board, and hook up with the RGB LED matrix, you can use the Arduino to drive the matrix like the Colorduino/Rainbowduino. The code of Colors shield is the same as Colorduino.
The Colors shield can be plug into the Arduino UNO/Duemilanove, so the controller is based on ATMega 168P/328P, the same as Rainbowduino. This design is to make user easily modify or write the firmware of Colorduino by Arduino IDE. But in order to better drive the RGB matrix and reach their best performance, we use the professional LED driver chip, and this chip comprises shift registers, data latches, 8×3 channel constant current and 64 x 256 gray level PWM for per color! Each channel provide a maximum current of 60 mA.
Each RGB dot has 160K colors in theory, and it’s easy to use the 6bit correction register to calibrate the current error for each color LEDs – we don’t think that Rainbowduino use an adjustable resistors to calibrate the current error is a good idea, because just 1 lap the resistor change from 0R to1K , you cannot get the exact value you need, but now, you have a 6bit software value to correct it.
Go shopping Colors Shield (IM120417002)
Features
- 8bits colors support with 6bits correction for each color in every dots
- Hardware 16MHz PWM support
- Without any external circuits, play and shine!
- 24 constant current channels of 100mA each
- 8 super source driver channels of 500mA each
Specifications
| PCB size | 60mm X 60mm X 1.6mm |
| Indicators | PWR State |
| Power supply | 5V DC |
| IO | 13 |
| RoSH | Yes |
Electrical Characteristics
| Parameter | Min. | Typical | Max. | Unit |
| Power voltage | 4.5 | 5 | 5.5 | VDC |
| Input voltage VinH (Target Voltage = 3.3V) | 3 | 3.3 | 3.6 | V |
| Input voltage VinH (Target Voltage = 5V) | 4.5 | 5 | 5.5 | V |
| Input voltage VinL | -0.3 | 0 | 0.5 | V |
| Current Consumption (Except LED matrix) | - | 20 | 40 | mA |
| Drive current (Every channel) | 500 | mA | ||
| Drive current (Every dot) | 58 | mA |
Hardware
| Pad Name | Type | Description |
| SDA | I | Serial input for grayscale data |
| SCK | I | Synchronous clock input for serial data transfer. The input data of SDA is transferred at rising edges of SCK. |
| SB | I | If SB is H, shift-in data would be stored in the 8-bit BANK 1. If SB is L, shift-in data would be stored in the 6-bit BANK 0. |
| LAT | I | When LAT converts from H to L, grayscale data in both shift register banks are latched. |
| RSTn | I | The shield is initialized when RSTn low. There is an internal pull-up in this pin. This pin couldn’t be floating. Before using the shield, it must be reset first. |
| C0 | I | Channel 0 enable input, High level active |
| C1 | I | Channel 1 enable input, High level active |
| C2 | I | Channel 2 enable input, High level active |
| C3 | I | Channel 3 enable input, High level active |
| C4 | I | Channel 4 enable input, High level active |
| C5 | I | Channel 5 enable input, High level active |
| C6 | I | Channel 6 enable input, High level active |
| C7 | I | Channel 7 enable input, High level active |
| +5V | Power | Power supply for Color shield, input range is from +3.3V |
| GND | GND |
Download
Useful Links
Franklin Dattein's Blog <Arduino Build Light>
by Stanley <DIY a fancy car realtime data indicator with Arduino & RGB LED matrix >
by L8 SmartLight <L8 SmartLight :: The SoundLess Speaker :: for Phone/PC>
