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Weighing Scale Module BM42P782-N1

US$2.70
In stock
Quantity
2 pieces
Product ID
BM42P782-N1

This is PRE-ORDER product. Lead time : 2.5 weeks.

The product is a 24-bit ADC weighing scale module with an external resolution of up to 6000. In addition to the standard features of a typical weighing module (such as tare/zero, and unit conversion), it also includes advanced functions like weighing accumulation, anti-vibration, power saving, and brightness adjustment. The measurement results can be directly output via UART without additional conversion.
It is suitable for applications in small platform scales, bench scales, animal electronic scales, and other relevant products.

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The product is only suitable for users with experience in developing weighing scale products. If you do not have relevant experience, purchasing it is not recommended.
PRODUCT FEATURES
  1. Operating voltage:
    - 9V~16V (AC/DC external power supply)
    - 4.2V (single cell 4.2V lithium battery)
    - 4V (4V lead-acid battery)
    - 6V (6V lead-acid battery)
  2. Operating current: 9~35mA (@load cell 1000ohms)
  3. Operating temperature: -10℃~65℃
  4. Supports linear calibration, linearity: 0.005%
  5. Includes 24-bit ADC, maximum external resolution: 6000
  6. Supports multiple range sensitivities, can set single/dual/triple accuracy
  7. Functions:
    - Tare / Zero
    - Unit conversion: Kilograms (kg) / Grams (g) / Pieces (pcs) / Percentage (%) / Liters (liter)
    - Weighing accumulation
    - Password setting
    - Brightness / ADC sampling speed adjustment
    - Anti-vibration weighing
    - Power saving
  8. Interface: UART (baud rate: 9600bps)
  9. Dimension: 77 x 32 x 15 mm
  10. Net weight: 16g
DESCRIPTION

The product requires to use with external buttons, a 6-digit display module, and a load cell.
Buttons are used to set functions such as tare/zero, weight accumulation, unit conversion, and password settings. The initial password is set to 650715 from the factory, which is changeable.

⬥ Refer to the "Functional description " chapter in the datasheet for more settings details.

HARDWARE OVERVIEW
PIN DESCRIPTION

Pin Pin name Function
Load cell interface
1 S- Load cell negative feedback
2 S+ Load cell positive feedback
3 E- Load cell negative power
4 E+ Load cell positive power
5 GND Ground
LED indicator interface
6 VCC AC/DC power status (soldered to VCC-R)
7 R Connect a 5.1kΩ resistor in serial to ground
8 SW2 SW2 power status (soldered to SW2-R)
Power supply
9 BAT- GND (battery)
10 BAT+ Power supply: 4V/4.2/6V (battery)
11 SW1 Switch 1
12 SW2 Switch 2
13 AC/DC1 AC/DC power supply pin1: 9V~16V
14 AC/DC2 AC/DC power supply pin2: 9V~16V
UART interface
15 TXD UART: TX
16 RXD UART: RX
17 3V3 Positive power: 3.3V
18 GND Ground
External buttons interface
19 SEG6 SEG6 pin
20 SEG5 SEG5 pin
21 SEG4 SEG4 pin (MODE)
22 SEG3 SEG3 pin (MR)
23 SEG2 SEG2 pin (M+)
24 SEG1 SEG1 pin (TARE/ZERO)
25 KSCAN KSCAN pin
26 GND Ground
27 CAL Calibration pin
External display module interface
28 SEG1 SEG1 pin
29 SEG2 SEG2 pin
30 SEG3 SEG3 pin
31 SEG4 SEG4 pin
32 SEG5 SEG5 pin
33 SEG6 SEG6 pin
34 SEG7 SEG7 pin
35 SEG8 SEG8 pin
36 D6 D6 pin
37 D5 D5 pin
38 D4 D4 pin
39 D3 D3 pin
40 D2 D2 pin
41 D1 D1 pin
More Information
HS Code (reference) 8517.79.00.00-6
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