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16W Water Atomization Module (BMCOM) BMN31K522

US$10.90

In stock

Quantity

221 pieces

Product ID

BMN31K522

The BMN31K522 is a 16W water atomization module that is composed of a control board and integrated atomizer module BM52O5221-1. The BM52O5221-1 integrates a piezoelectric transducer, control circuit board, and structural components.

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DESCRIPTION

Adjustable atomizing levels and other features

The control board is designed by using the Holtek 8-bit MCU HT66F2030. There is an on-board button to change the atomizing levels (1~3 levels). The product provides the water-shortage detection function to prevent the transducer from being damaged when working in the absence of water.

When there's enough water, the on-board LED stays on. However, when a water shortage is detected (water level drops below 30mm), the LED starts blinking, and the BM52O5221-1 stops working automatically.

To use with a development board

There is the BMCOM on the control board. With the BMCOM, you can directly connect the product to BMduino development boards, such as BM53A367A directly. You can use it with other development boards, such as Arduino UNO, as well. directly.

Two operation modes

The product provides two operation modes, stand-alone mode and networking mode.

Stand-alone mode: just connect a fan to the control board and supply power (24V) to start using it.
When a water shortage is detected, the BM52O5221-1 stops working automatically. It re-atomizes once the enough water is detected.
Networking mode: in this mode, the development board sends commands to control the BMN31K522. You need to connect a fan to the control board and supply power to both the control board (24V) and the development board to start using it.
When a water shortage is detected, the BM52O5221-1 stops working automatically. It re-atomizes once enough water is detected. The development board does not need to send a command.

Please be informed that it is necessary to add water before powering up the product.

PRODUCT FEATURES

Input voltage: 24V
Operating current: 0.75A @24V (Max.)
Atomization frequency: 1.7MHz
Atomization rate: >220ml/h (for reference, affected by mechanism)
Atomization efficiency: >13.5ml/(w·h)
Operation mode: stand-alone and networking
Adjustable atomizing level: 3 levels; 0 level: stop atomizing
Water-shortage detection function (capacitive)
Interface: UART (baud rate: 9600bps)
Recommended water level: 30~50mm
BM52O5221-1 passed the EN 55014 EMC test
Dimension:
- Control board: 40.91 x 36.25 x 13.1 mm
- BM52O5221-1: 55 x 55 x 36.8 mm
Net weight: 71g

HARDWARE OVERVIEW

PIN DESCRIPTION

Pin	Pin name	Function
1	GND	Ground
2	VDD	Power supply: 24V
3	NC	-
4	RX	UART: RX
5	TX	UART: TX
6	VDD	Positive power (for UART communication)
7	GND	Ground (for UART communication)
8	FAN-	FAN negative
9	FAN-	FAN positive
10	GND	Ground (BM52O5221-1)
11	24V	Positive power (BM52O5221-1)
12	PWM	PWM control pin (control atomizing levels)
13	WATER	Water level detection pin
14	FAN	Fan driver pin
15	VR	-

PRODUCT SERIES COMPARING

Function	BMN31K522	BMN31K512	BMN31K502
Operating voltage	24V	18V~26.5V	5V
Operating current	0.75A @24V	0.42A @24V	400mA @5V
Atomization power (Max.)	16W	10W	2W
Atomization frequency	1.7MHz	1.7MHz / 2.4MHz	108kHz
Adjustable atomizing level	O (3 levels)	O Networking mode: 32 levels Stand-alone mode: 5W~10W	O Networking mode: 3 levels
Water shortage detection	O	O	X
Piezoelectric transducer installation	Under water	Under water	Above water
Interface	UART (9600bps)	UART (9600bps)	UART (9600bps)