Description
Product information "Adafruit 24-channel 12-bit PWM LED driver, SPI interface"
Only three "SPI" pins are needed to send data (our Arduino library shows how you can use any digital microcontroller pins). Best of all, the design is completely modulatable. As long as there's enough power for all the boards, you can string as many boards together as you like, like a little trail of blue PCBs stretching off into the sunset. Each of the 24 outputs is constant current and open-drain output. You can drive multiple LEDs in series, with a V+ anode supply of up to 30V. If you want to drive something that requires a digital input, you will need to use a pull-up resistor from the drive pin to the logic level to create the full waveform.
A resistor is used to set the current for each of the outputs, the constant current means that the LED brightness will not vary when the power supply dips. We use a 3.3K resistor for about 15mA, but you can solder a through-hole resistor across it if you want to change this value. See the TLC5947 datasheet for details on resistor/current values.
We've included a few extras to make this board simple: a long-life 5V low dropout regulator (with reverse polarity protection in case you plug it in backwards), a green power good LED, four mounting holes and a current setting resistor. A piece of 0.1" header is also included so you can solder it on and plug it into a breadboard.
To use: supply V+ with 5-30VDC, and connect ground to the common ground. Then send 3-5V logic SPI data to DIN (data in), CLK (clock) and LAT (latch). If you want to switch off all outputs quickly, raise the OE pin - it will be pulled low to enable the PWM outputs. Our Arduino library will help you work with flashing LEDs, install it and run the example code with the pin configuration noted.
Properties
| Zolltarifnummer: | 85423111 |
|---|---|
| Brand: | Adafruit |
| Country of Origin: | USA |
| EAN: | W19748-A |
| Gross Weight (kg): | 0.007 |
| Manufacturer ID: | 1429 |
| Product ID: | ADA1429 |
Manufacturer
Adafruit
Adafruit: The expert for open source hardware
For more than ten years, programmers and tinkerers have benefited from the expertise of the Adafruit brand. Whether for beginners or proven experts, Adafruit has the right hardware components ready for your next IoT project.
Light comes into the dark with Adafruit NeoPixel
One extremely popular product line from the company's broad portfolio is Adafruit NeoPixel. These nifty LED components come in a wide variety of designs and color temperatures. NeoPixel modules are available, for example, in the form of a practical stick with five intelligent LEDs in red, green and blue (RGB) or in white (W), as a shield with 40 eye-saving RGBW LEDs in which all pixels are individually addressable, and as a jewel with seven RGBW LEDs that can be controlled with 8-bit PWM per channel.
Especially popular is the Adafruit NeoPixel Ring with 16 ultra-bright, intelligent RGB LEDs including integrated drivers, which you only need a single microcontroller to control. The trick is that the Adafruit NeoPixel rings form a chain, so to speak: You couple the output pin of one with the input pin of the other.
With the Adafruit NeoPixel products you can realize a wide variety of projects - there are virtually no limits to your creativity. With the help of an Arduino, a jumper cable and the appropriate software, you can control a NeoPixel ring individually and light up the small LEDs as you wish - either individually or in a specific combination. This way, you can also create your own Vu meter with the versatile LED components. Practical: To make programming Adafruit NeoPixel easier, Adafruit provides an Arduino library as well as a Python library.
Adafruit Feather Boards: Powerful hardware in a compact format
With Adafruit Feather, the hardware specialist from the States also has various powerful development boards in its range, which are essentially equivalent to an Arduino in terms of function. All of these boards are equipped with similar features; among other things, the pin assignment is the same and there are also many parallels when it comes to the microcontrollers and the battery charging properties. In addition, you can also find Feather boards with special devices like Bluetooth, Wi-Fi and cellular network connectivity as well as boards with microSD slot in Adafruit's product range. The name "Feather" is no coincidence: The boards are also characterized by being particularly compact and, above all, lightweight.
The range of top-class product highlights is wide: The STM32F405 Feather, for example, is the fastest CircuitPython board from Adafruit with an outstanding 168 MHz and meets the highest demands. It is equipped with a STEMMA QT / Qwiic port at the end, which makes it easy to connect to I2C sensors. The Adafruit Feather nRF52840 Express, on the other hand, shines with Bluetooth Low Energy and can also be used with CircuitPython thanks to native USB support.
Another important part of Adafruit's portfolio are the FeatherWings. With these expansion modules, you can also include components such as a display or a motor driver in your IoT project. The FeatherWing Proto is a proven classic in Adafruit's portfolio. This is ideally suited as a prototyping add-on for all Feather boards. The Adafruit FeatherWing Wing Tripler Mini Kit, on the other hand, is ideal if you want to connect a Feather to two other FeatherWings at the same time.
With the Adafruit MIDI FeatherWing Kit you get a music capable FeatherWing, thanks to which you can equip your Feather with MIDI input and output jacks. And with the Adafruit FeatherWing OLED you can easily add a small OLED display to your Feather board - no soldering required.
Adafruit: What's behind the brand
As an expert in open-source hardware, Adafruit has long since established itself in the electronics industry. The company was founded in 2005 by Limor Fried. At the time, the talented and innovative electrical engineer was still a student at the renowned Massachusetts Institute of Technology (MIT). To this day, Fried is CEO of the electronics giant, which is now headquartered in New York. The company's name also goes back to its founder: Fried was once known on the World Wide Web by the nickname "Ladyada" - a tribute to the famous IT pioneer Ada Lovelace.
Adafruit says it is committed to getting more people excited about technology and science - and thanks to its first-class products, the hardware expert from the USA is sure to succeed!
Manufacturer and safety information
Adafruit Industries, LLC
168 39th Street 1905CC
US 11232 Brooklyn, New York
https://www.adafruit.com
support@adafruit.com
WEEE number: 20453810
Person responsible for the EU
Sertronics GmbH
Am Studio 20d
DE 12489 Berlin
https://www.berrybase.de
info@berrybase.de
Safety instructions
- Do not use the LED controller in damp or wet environments unless it is expressly labelled as waterproof.
- Only operate with the specified operating voltage and current to avoid damage or short circuits.
- Do not use damaged cables or plugs to avoid the risk of electric shock or fire.
- Avoid direct sunlight or extreme heat to prevent the appliance from overheating.
- Children and untrained persons may only use the appliance under supervision.
- To prevent injury or damage, do not open or tamper with the appliance during operation.
- In the event of a defect or malfunction, disconnect the appliance and have it checked by qualified personnel.
- For disposal: Do not dispose of in household waste, but recycle in accordance with local regulations for electronic waste or hand in at collection points.
- Ensure that batteries (if used) are separated and disposed of properly.
- During intensive use, always ensure adequate ventilation to prevent heat build-up.
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