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8x8 RGB LED Matrix Module BM32D2021-1

US$4.80

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Product ID

BM32D2021-1

The product is a colored LED module with 64 RGB LEDs arranged in a matrix 8x8 (8 rows by 8 columns). It has built in the LED driver IC, HT16D33B, to drive each LED individually. Its operation differs from the LED strip modules in which LEDs are connected in a serial type.

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PRODUCT FEATURES

Operating voltage: 2.7V~5.5V
Static operating current: 12μA @ 5V
LED driver IC: HT16D33B
- Operating voltage: 4.5V~5.5V
- Max. driver current: 550mA @5V, constant current: 48mA, white light, max. brightness
Color and brightness are configurable
- Color: 16.77 million
- Brightness: 256 levels
Configurable constant current: 16 levels (3mA~48mA)
Cascadable up to 4 modules
Configurable colors for all, a row, a column, or individual LED
I²C interface (address: 0x2E + 0x64~67, select one)
Product includes: 8x8 RGB LED Matrix Module BM32D2021-1 x1 | cable x1 | power cable x2
Dimension: 79 x 73.7 x 8 mm
Net weight: 27g

DESCRIPTION

To create captivating lighting effects, besides designing diverse lighting modes in programming, the functionality of the LED driver IC also plays a crucial role. The HT16D33B is a powerful driver IC that provides a 16-level constant current drive and 256-level brightness control (using PWM signal).

The brightness of the LED is determined by the driving current and the brightness control levels (duty cycle of the PWM signal). The red, green, and blue primary colors of RGB LEDs are all configurable from 0 to 255, which can create a full-color display (256 x 256 x 256) in 16.77 million colors.

The external development board can communicate with the HT16D33B via I²C interface and issue commands to control color and brightness of each LED for creating a kaleidoscopic lighting effect. LEDs on the product are uniquely numbered from LED1 to LED64. You can set or clear the colors of all, a column, a row, or individual LEDs through commands. It's also possible to configure the brightness of the LEDs.

Moreover, by cascading up to four modules, it can achieve a full-color display containing a total of 256 RGB LEDs.

Points to be noted when cascading the product.
⬥ It is important to ensure that the supply current is sufficient for each module.
⬥ It is necessary to set different I²C addresses for each module.

PIN DESCRIPTION

Pin	Name	Function
1	GND	Ground (LED)
2	LED_VDD	LED Power Supply：4.5V~5.5V
3	VSS	Ground
4	VDD	Module Power Supply: 2.7V~5.5V
5	SDA	I²C Data Line
6	SCL	I²C Clock Line
7	SYNC	-
8	VSS	Ground
9	VDD	Module Power Supply: 2.7V~5.5V
10	SDA	I²C Data Line
11	SCL	I²C Clock Line
12	SYNC	-
13	GND	Ground (LED)
14	LED_VDD	LED Power Supply: 4.5V~5.5V

COMPARISON

Compared to the BMD26M088, which we have launched on our website, the product is designed with the same LED driver IC, HT16D33B, and also features an 8x8 matrix arrangement of LEDs.
However, the LEDs on the BMD26M088 are smaller than those on this product. Users can choose the product that best suits their application.

Part number	BM32D2021-1	BMD26M088
LED amount	64 (8 x 8)	64 (8 x 8)
Operating voltage	2.7V~5.5V	2.7V~5.5V
LED driver IC	HT16D33B	HT16D33B
LED operating voltage	4.5V~5.5V	4.5V~5.5V
Max. driving current	550mA @5V	268mA @5V
Color	16.77 million	16.77 million
Brightness	256 levels	256 levels
Constant current	16 levels (3mA～48mA)	16 levels (3mA～48mA)
Cascade function	O can cascade up to 4 modules	O can cascade up to 4 modules
Interface	I²C	I²C
Product dimension	79 x 73 x 8 mm	54 x 36 x 8 mm