Intelligent weighing spoon PCBA chip solution

Mondo Technology Updated on 2024-01-30

As a small electronic scale, the intelligent weighing spoon has the characteristics of simple and convenient operation, high measurement accuracy, low power consumption and low cost. The smart weighing spoon, broken down from the name, is an electronic scale with the shape of a spoon, which is weighed with a single sensor (beam arm sensor), and the data is processed by the MCU and converted to a display display, and measured in a stable situation. The design concept of this smart weighing spoon is that users can pick up and weigh food directly with a spoon when serving food to pets, which is more convenient and intuitive, easier to operate than with a kitchen scale, and has a small size. In addition, the smart weighing spoon is equipped with a smart Bluetooth chip, which can be linked to the smart APP, and the smart weighing spoon will truthfully record the current weight and upload it to the cloud APP by feeding the pet regularly, so that it is convenient for users to view the pet's diet statistics curve, so as to observe the physical condition of the pet, and formulate the current pet diet to ensure the health of the pet, and can also be used for coffee and milk tea shops, bakeries, and breakfast shops.

The following is an introduction to the scheme of the smart weighing spoon:

1.Power supply: 3V coin cell battery power supply (equipped with dual power supply circuit, can be replaced with lithium battery power supply).

2.LCD display: full display at power-on, zero after stabilization (full scale zero).

3.Three buttons: on off tare button, mode (unit switch), hold (weight lock).

4.Four weighing units: g (gram), oz (ounce), gn (gram), ct (carat).

5.Range: 05g 1000g (g).

6.Key Function:

on off tare button.

Power on and off button, or tare key, short press to turn on, LCD display full display, if the device is in standby mode, wake up (the display screen is not fully displayed, do not read zero point);If the device is in the shutdown state, it will be powered on (full display, read zero point). Short press again to peel off, long press to turn off, in the state of the display is lit, long press for 2s to turn off, Bluetooth and weighing functions will be completely turned off, and the power on can only be triggered by pressing the button.

mode button.

The unit switch key, in these four weighing units g (gram), oz (ounce), gn (gram), ct (carat) cycle switching, the default g (gram) at boot, turn off after use, and display the last unit used at boot.

hold button.

Weight lock key, when the weight is stable, short press the button to lock the current weight, the display value does not move, and the weighing data will be uploaded to the APP in the state of the linked APP, real-time recording, the continuous stability time is greater than 2s, the weight is considered stable (lock display, store data). If the weight change is greater than or equal to 3g, it is unlocked (unlock the display, store data).

7.Smart weighing spoon calibration steps: step1: Press and hold the button, power on, enter the inner code mode, and release the button. Step2: Press short to display [1000g] and press 2kg weight. Step 3: [Pass] will be displayed if the calibration is successful, and [ERR1] will be displayed if the calibration fails

8.Intelligent communication function: At present, Bluetooth is used as a communication method, which can be linked to the APP, and the Bluetooth protocol needs to be connected in the early stage. If the app is not available, it can be connected to platforms such as Mi Home and Tuya.

9.Smart Weighing Spoon Uses:

The smart weighing spoon can be used as a tool for pet feeding, and it can be quantified at regular intervals.

The smart weighing spoon can be used as a weighing tool for coffee and bubble tea shops.

The smart weighing spoon can be used in the food production process of bakeries, breakfast shops, dim sum restaurants and other places.

In summary, as a smart Bluetooth weighing spoon solution, it is mainly used for pets, but it can also be used as other tools. This solution is equipped with dual circuits of lithium battery and dry cell battery, which can meet different customer needs. And the measurement is accurate, the operation is simple, the power consumption is low, the peripheral components are few, the cost is low, and so on.

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