PCB circuit board design of electric breast pump control board

PCB circuit board design of electric breast pump control board

Specifications and dimensions:

Size: 70.8mmx70.8mm

Material: FR-4

Plate thickness: 1.0mm

Board layer: double sided board

Accessory Description:

Air pump: rated voltage 3.7V

Air valve: rated voltage 3.7V

Power supply: 5V / 2A adapter

Function Description:

Switch on and off: after power on, the LCD screen will be turned off after it is lit once, and the board is in the shutdown state. Press the long open key for 1 second to start up, and press the open key for a short time to release and shut down.

Mode switching: in the working state, briefly press the mode key to release the switching mode. The working modes are * * mode, lactation mode and lactation mode.

Gear switching: in the working state, short press the gear reduction key to release, the gear in the current mode decreases, and long press to continuously decrease. Short press the gear plus key to release, the gear of the current mode will increase, long press will increase continuously, * * gear 9.

Working state: in the working state, it will automatically close after 30 minutes of no operation.

Charging state: charging indication: the number of cells of the battery symbol changes from 0 to full, once in 0.5s.

State of charge

State of charge