Product name: 1D & 2D Barcode Scanner, barcode Scanning Module for
barcode reader - BM300
Introduction:
BM300 is a self-designed, highly integrated,high-stability
two-dimensional code scanning module.
BM300 adopts stamp hole patch design, a total of 32 pins, SOP
package, 29.8MM * 14.8MM * 3MM ultra-small size, can be embedded in
access control, self-service equipment, scan code boxes, etc. for
product volume sensitive products.
This document defines the hardware interface, electrical
characteristics, mechanical dimensions, and production requirements
of the BM300 module. Through this document, customers can quickly
apply the BM300 module to various types of scanning code products.
Main performance:
Power supply: VCC_IN supply voltage range 3.0V ~ 3.6V, typical
operating voltage 3.3V.
Power saving: current 33mA in standby mode.
Temperature: normal operating temperature -20 ℃ ~ 70 ℃, storage
temperature -40 ℃ ~ 80 ℃.
Serial port: Serial communication interface, TTL level signal, can
support 1200 bps to 115200 bps rate, the default configuration is
115200bps, 8 data bits, no check, 1 stop bit.
USB port: USB HID-KBW, based on USB keyboard emulation device, can
be directly connected to PC as a plug-and-play device. No need to
install drivers.
Size: 29.8mm(Length)*14.8mm(Width)*3mm(Thickness)
Application Of 2D Barcode Scanner
1) Self-service kiosks and ticket vending machines
2) Access control gates & turnstiles for stadia, building access &
transportation
3) Retail voucher redemption and loyalty cards
4) Car park ticket machines and automatic barriers
5) Casino and TITO gaming machine
Functional Block Diagram:
The following figure is a functional block diagram illustrating the
main functions:
Pin description:
| PIN# | signal | I/O | Description |
| 1 | VCC_IN | - | 3.3V power input 3.0V ~ 3.6V, power supply must provide 1A or more
current |
| 2 | GND | - | Power ground |
| 3 | GND | - | Power ground |
| 4 | LED_DEC_G | O | Decoding green indicator light control signal output; output
high/low level control indicator driving circuit, output high
indicator light |
| 5 | LED_DEC_B | O | Blue light control reserved pin |
| 6 | Buzz | O | Buzzer control signal output; output PWM signal controls the buzzer
drive circuit, when the PWM signal is output, the buzzer emits a
“be be” sound |
| 7 | BOOT_SEL0 | I | The main chip working mode switches the pin to work normally when
it is high level, and enters the upgrade mode when it is low level,
and is reserved for online upgrade |
| 8 | UART_RX0 | I/O | UART data reception |
| 9 | UART_TX0 | I/O | UART data transmission |
| 10 | LED_ILM | O | Fill light control signal output; output high/low level control
fill light drive circuit, output high fill light is on |
| 11 | nTrig | I | Trigger key input signal, keep low level for more than 10ms to
trigger reading |
| 12 | Reset | I | Reset signal input, active low, keep low for more than 1ms to reset
the device |
| 13 | USB_DM | I/O | USB communication D- data signal |
| PIN# | signal | I/O | Description |
| 14 | USB_DP | I/O | USB communication D+ data signal |
| 15 | GND | - | Power Ground |
| 16 | OUT_2V8 | - | Camera 2.8V power supply output, maximum output current 100mA |
| 17 | PCLK | I | Video clock signal input |
| 18 | MCLK | O | Clock signal output |
| 19 | GND | - | Power ground |
| 20 | DI_HS | I | Video line signal input |
| 21 | DI_VS | I | Video field signal input |
| 22 | DI_D7 | I | Video data signal input 7 |
| 23 | DI_D6 | I | Video data signal input 6 |
| 24 | DI_D4 | I | Video data signal input 4 |
| 25 | DI_D0 | I | Video data signal input 0 |
| 26 | DI_D5 | I | Video data signal input 5 |
| 27 | DI_D2 | I | Video field signal input 2 |
| 28 | DI_D1 | I | Video clock signal input 1 |
| 29 | DI_D3 | I | Video line signal input 3 |
| 30 | DI_PWD | O | Camera CMOS chip sleep mode control, 0: normal operating mode, 1:
sleep mode |
| 31 | SCL | I/O | I2C_SCL |
| 32 | SDA | I/O | I2C_SDA |
Electrostatic Protection (ESD):
Pay attention to anti-static measures during the design and use of
the BM300.
Pay attention to the measures such as wearing an anti-static wrist
strap and grounding the work area.
Feature Of 2D Barcode Scanner
1. IR/Light Triggers
The combination of IR sensor and light sensor exhibits an improved
sensitivity in activating the scanner to scan barcodes as they are
presented, to achieve higher throughput and productivity.
2. Automatic Exposure Control (AEC)
The sensors in the LV3000U automatically adjust the brightness of
supplementary lighting based on the light reflected off barcode.
3. IP54-sealed Housing
The LV3000U is environmentally sealed to anIP54 rating to prevent
dust, moisture and other contaminant from entering it.
4. Unmatched Reading Performance
The LV3000U is capable of reading 1D as well as high-volume 2D
barcodes on the screencovered with protective film.
5. Highly Visible Laser Aimer
The LV3000U provides a laser-generated crosshair aiming pattern
that is clear and bright even in bright sunlight, ensuring first
time accurate aim.
6. 1.5m Drop Resistance
The scanner withstands multiple 1.5m drops toconcrete (for six
sides, three drops per side).
