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)
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.
Product Tags:
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High Stability 2D Barcode Scanner Ultra Small Size For Mobile Payme Images
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