This fully assembled board is a 3-Channel LED shield for High Power LEDs......
Overview
This fully assembled board is a 3-Channel LED shield for High Power LEDs with constant current dynamically programmable from 100mA - 700mA per channel. While it is designed to function as an…
This fully assembled board is a 3-Channel LED shield for High Power LEDs with constant current dynamically programmable from 100mA - 700mA per channel. While it is designed to function as an Arduino shield it can be driven from any micro controller platform that features an I2C bus interface such as Teensy 3.1, Raspberry Pi, Beagle Bone etc.
The I2C bus interface allows multiple shields to be controlled by one micro controller using only three pins (SDA, SCL, GND). 8 Shields can be controlled simultaneously and independently when concurrent Analog and PWM dimming are required. Up to 64 shields can be controlled when only PWM dimming is required.
An easy to use Arduino library including example sketches is available on GitHub
Notes:
This board cannot be used with common-cathode or common-anode LEDs.
This board is not designed to drive LED strips with individually addressable LEDs.
Details
LED driver with 3 independent channels in buck configuration.
Dynamically adjustable constant current 100mA - 700mA per channel allowing for analog dimming.
12-bit per-channel PWM dimming allowing for smooth Gamma or CIElab brightness corrected dimming.
Programmable PWM frequency from 40Hz - 1000Hz.
Programmable constant current switching frequency from 330KHz - 1MHz.
Max 42V input 36V output. Can drive up to 40W of LEDs.
On-board temperature sensor for remote sensing of LED temp.
On-board 5V switched power supply allows for stand-alone operation. An Arduino or other micro controller e.g. Teensy3.1 can be powered directly from the shield.
Shield requires only 2 pins (SCL, SDA) plus GND from Arduino or other micro controller for operation.
On-board I2C pull-up resistors can be disabled by means of solder jumpers
Shield can be stacked directly onto an Arduino Uno and Arduino Leonardo.
Solder jumpers allow to re-configure the shield for the different I2C pins on the Arduino Leonardo.
All functions of the shield are accessible through an Arduino library using the I2C bus.
All components on the shield are FM+ compatible allowing for I2C bus speeds of 1MHz (works great on a Teensy3.1)
Only lead free ROhS compliant solder is used to build these shields
No country selected, please select your country to see shipping options.
No rates are available for shipping to .
Enter your email address if you'd like to be notified when High Power RGB LED Shield I2C - 12bit/ch. dimming can be shipped to you:
Thanks! We'll let you know when the seller adds shipping rates for your country.
Rates to
Shipping Rate
Tracked
Ships From
First Item
Additional Items
:
Review Breakdown
5
3
4
0
3
0
2
0
1
0
Average Ratings
Product:
(5.00)
Documentation:
(5.00)
Shipping:
(5.00)
Communication:
(5.00)
Oliver |
Sept. 8, 2015
Extremely well built module in a nice form factor
I am driving 3W RGB LEDs with this module controlled by an Arduino Pro Micro. The most important feature for me was the I2C interface because one has never enough pins on those small Arduinos. The module has a clean layout and is extremely well built. The provided documentation and source code got me started in no time. Very glad I stumbled upon this one. Chapeau!
Sean |
June 29, 2015
Exactly what I was looking for
If you need to control high-power LEDs, there are a few products out there that can help you, but things get messy fast if you need to deal with multiple channels. If the pre-built tools don't meet you needs, the controller chips are available but usually in a form factor that's not easily solderable by the hobbyist (looking at you leadless and BGA only chips...).
This shield, however, was precisely the tool I was looking for: high power, multi-channel LED control, with a built-in power supply that takes most anything you can throw at it. And to make my life even easier, it's all controlled over I2C. I'm using it to control a triad of 3W RGB LEDs for a costume.
Documentation is great, but mostly I was looking for the library to fork & modify for my project.
EDIT: Thanks for reminding me! Here's a link to the forked source on github. Probably nothing useful to the general audience yet, but feel free to rip out whatever you need! Open source FTW. ^_^
https://github.com/schizobovine/HPRGB2
Will update with pics when I get it presentable.
Response from trippylighting | July 23, 2015
Hi Sean. Thank you for this glowing review! You mention that you modified the library. If you think the modifications would be interesting and useful for a wider audience, please share the code.
Xavier |
Feb. 13, 2015
Great shield, well designed
Using this shield instead of creating my own PCB saved me a lot of time. The circuit is well-thought-out, its versatile and scalable design makes it ideal for prototyping applications where you don't how exactly how many light and at what current you're going to drive. The 12bit resolution allows to create nice low light fades without the usual 8bit jerky effect. Good communication, the seller answers quickly and accurately.
Martin |
May 14, 2014
Perfect PCB layout, everything is working on the first time.
I ordered 3 PCB. All of them are working OK. I use these boards with Raspberry Pi. There is a perfect documentation on the web. Schematics, PCB layout and software for arduino on git. With minor modification of the Arduino code I was able to use it easily with Raspberry Pi. The developper/seller TrippyLighting was very helpfull about my all questions. I can give 10 positive point out of 10. Good deal.
By clicking Register, you confirm that you accept our Terms & Conditions
What is a Tindarian?
We recognize our top users by making them a Tindarian. Tindarians have access to secret & unreleased features.
How does one become a Tindarian?
We look for the most active & best members of the Tindie community, and invite them to join. There isn't a selection process or form to fill out. The only way to become a Tindarian is by being a nice & active member of the Tindie community!
/i/0134/products/HP%20RGB%20LED%20Shiled%20front%20perspective.jpg?1606306133)
