Design of PCB circuit board of electric breast pump control board

Design of PCB circuit board of electric breast pump control board

Standard sizes:

Size: 70.8mmX70.8mm

Material: FR-4

Board thickness: 1.0mm

Layer: double panel

Accessories description:

Air pump: rated voltage 3.7V

Gas valve: rated voltage 3.7V

Power supply: 5V/2A adapter

Function description:

Switch on/off: After power on, the LCD screen will light up and then go out. The board is in the off state. Press and hold the on key for 1 second, turn on, and short press the on key to release, and off.

Mode switch: In working state, short press the mode key to release the switch mode. The working modes are: ** mode, lactation mode and lactation mode.

Gear switching: In working state, short press the gear minus key to release, the gear in the current mode decreases, and long press will continuously decrease. Short press the gear plus key to release, the gear in the current mode increases, long press increases continuously, and the gear is 9 gears.

Working status: Under working status, no operation will automatically shut down after 30 minutes.

Charging status: Charging indication: The number of cells of the battery symbol changes from 0 to full, and changes once every 0.5s.

charging

charging