The nutrition electronic scale is a tool used to measure the weight of food materials used in cooking. The nutrition electronic scale designed by the electronic product solution developer is mainly composed of ADC chip and circuit module, pressure sensor, LCD display, etc.
Functional design
Power on mode: automatic power on or key on
Unit and display graduation: three units g, lb and oz are supported, and the corresponding graduation values are 0.1g, 0.01Ib and 0.01oz. Press the unit key to change the unit.
Weighing range: 0.3g~3100g
In normal operation, the supply voltage of the sensor is 2.5V, the working current is less than 10mA, and the standby current is less than 3uA.
Calibration: Two point calibration, 1000g and 3000g respectively
Low voltage display: "Lo" will be displayed when the voltage is lower than 2.4~3.0V, and it will automatically standby after 4 seconds.
Overload display: "0-ld" is displayed when it is greater than the weighing value range
Automatic standby time: 60+1S after power on and reset to zero; After weighing and stabilizing: 60+1S.
Reset to zero: reset to zero after the full display is stable;
Weighing status: the weight is less than 0.3g and will automatically return to zero after it is stable;
Working voltage: 2.4V~3.6V power supply
Backlight: LED backlight, boot backlight is bright, no operation 10S backlight is off.
Performance parameter
Industry classification: software development
Delivery form: PCBA
Performance parameters: measuring range: 0.3g-3100g
Application scenario: kitchen