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Home 61 Key Electronic Keyboard Module BM72D5121-1
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61 Key Electronic Keyboard Module BM72D5121-1

US$6.20
In stock
Quantity
23 pieces
Product ID
BM72D5121-1

The product is a 61 key electronic keyboard module integrated Holtek 32-bit MCU HT32F61356. It supports 128 General MIDI sounds and a percussion sound set. In addition to the 61-key keyboard, it features 62 function keys for enhanced control and customization. It also allows users to expand functionality with peripheral circuits, such as adding an LCD display, sustain pedal, and more. The product is suitable for applications of electronic keyboards, electronic drum pads, and other musical instruments.

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FEATURES
  1. Operating voltage: 4.5V~5.5V
  2. Operating current: 25mA~40mA @5V
  3. Sounds
    - 128 General MIDI sounds, expandable to a maximum of 512
    - A percussion sound set
    - Supports dual voice, sustain, glissando, vibrato and transposing keys
  4. Keys
    - 61 velocity-sensitive keys
    - 62 function keys
    - Supports 16COM×16SEG key scan (max.)
  5. Tracks
    - 2 demo tracks
    - 115 accompaniment tracks
    - 5 tutorial tracks
  6. Integrated 64Mbits Data Flash
  7. Sounds output: DAC, I2S
  8. Interface: UART (baud rate: 31250bps), USB MIDI
  9. Operating temperature: -40℃~80℃
PIN DESCRIPTION

Pin Name Function
1 AVOUT_3V3 Analog signals power output: 3.3V
(Not recommended for peripherals requiring large current)
2 AGND Ground (analog signals)
3 DAC-R Audio DAC right channel
4 DAC-L Audio DAC left channel
5 AGND Ground (analog signals)
6 ADC2 Vibrato wheel ADC input
7 ADC1 Pitch wheel ADC input
8 UR-TX UART: TX
9 UR-RX UART: RX
10 I2S-WS I2S word select
11 I2S-BCLK I2S bit clock
12 I2S-SDO I2S serial data
13 I2S-MCLK I2S main clock
14 USBDM USB differential data bus that complies with
the Universal Serial Bus standard
15 USBDP USB differential data bus that complies with
the Universal Serial Bus standard
16~31 SEG0~SEG15 Matrix key SEG ports
32~47 COM15~COM0 Matrix key COM ports
48 LCD-CS LCD chip select
49 LCD-WR LCD write clock
50 LCD-DA LCD serial data
51 COD2 Rotary encoder input
52 COD1 Rotary encoder input
53 SUSTAIN Sustain pedal input
54 DVOUT_3V3 Digital signals power output: 3.3V
(Not recommended for peripherals requiring large current)
55 VIN Power supply: 4.5V~5.5V
56 GND Ground (digital signals)
RESOURCES
  1. MCU: Holtek HT32F61356, 32-Bit Arm® Cortex®-M0+ Music Synthesizer MCU, including datasheet, package information, etc.
More Information
HS Code (reference) 8518.90.90.00-1
Net Weight 5.2g
Dimension 47.32 x 39.88 x 2.65 mm
Datasheet V1.00 (1.28 MB)
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