In scenarios such as cross-border travel, express delivery, and market procurement, the demand for portability of weighing tools from users continues to rise. Traditional platform scales are bulky and inconvenient to carry, making it difficult to meet the needs of rapid weighing outdoors and travel. Portable portable scales, with their compact body and lightweight design, have become the preferred choice for people to carry on weighing.

The core of the entire handheld scale solution is designed around three directions: high-precision sensing acquisition, low-power driving, and stable data operation. The hardware architecture of the solution includes a weighing sensing unit, a main control MCU, an LCD backlight display module, a button control module, and a power management unit. All circuits are integrated on the PCBA motherboard, simplifying the board size and adapting to the long strip handheld scale shell structure, making it convenient for the product to have a lightweight appearance design.

The following are important parameters of a handheld scale

Range: 50Kg;

Weighing capacity: 50g;

Maximum weight: 50KG;

Display accuracy: 5000 points;

Units: Kg, Lb, St, oz;

Working voltage: 2.4V~3.6V;

Low voltage display: "LO";

Overload display: "Err";

Backlight: can be equipped with backlight;

Power on zeroing range: full range;

Power on mode: Press the button to turn on or turn on the power;

Calibration method: 2-point calibration: 20Kg, 50Kg;

Low voltage detection: one or two point detection;

Key types: touch, touch, toggle;

Buzzer: Can be equipped with buzzer output;

Power consumption: Operating current: Operating current less than 5mA, average shutdown current less than 5uA;

Shutdown time: Low voltage displays "Lo" for 4 seconds before shutting down; After the heavy object stabilizes, it will automatically shut down within 60 ± 2 seconds.

In addition to the basic weighing function, the entire solution reserves rich customization and development space, supporting customers to add or remove functions as needed. Customers can choose to add an overweight alarm function. When the weighing item exceeds the 50kg range, the device will automatically provide sound and light reminders to protect the sensor from overload damage. In terms of appearance adaptation, PCBA board types support customization and can match shell structures of different lengths and widths to meet the differentiated product development needs of brand customers.

The product has a wide range of application scenarios. For individual consumers, check in luggage at the airport and weigh it in advance to avoid fines for overweight; Verify the weight of the package on the spot when sending and receiving parcels to avoid billing disputes; Purchase fresh fruits and vegetables at the market, weigh them on site to prevent shortages. In the B-end scenario, small merchants, warehouses, and street vendors can also use handheld scales to quickly verify the weight of goods.

By relying on this mature PCBA solution, customers can quickly develop cost-effective handheld scale products. As a solution service provider, we have the ability to customize and develop hand-held scale ICs and PCBAs, providing one-stop technical services from hardware selection, firmware development to production operation guidance. We support customized adjustments of functions, accuracy, etc., helping customers quickly land mass production projects.