Calculator

Feature introduction

Input numbers

Get press string Return keyboard character

Get press button int value Return keyboard ASIIC value

Clear press string Clear input characters

Delete press string last byte Delete the last byte entered

is new button pressed Press the button to return true

Usage

The screen displays the entered number

Encoder

Feature introduction

Read encoder value

Set LED pos color Set the specified LED color

Clear encode value to zero Encoder value becomes zero

Get encode value Return encode value

Get encode direction Return the direction of rotation

is encode pressed Return True when the encoder knob is pressed

Usage

The screen displays the encoder value and press the knob to return to zero.

FINGER

Feature introduction

Read fingerprint information

get state Return sensor status

get access Return user rights

get id Return ID

remove All Remove all fingerprint information

remove faces_finger id Remove specified fingerprint ID

faces_finger add user id access Add fingerprint information

faces_finger read user with id access Verify fingerprint successfully executed program

faces_finger getUnknow Read unknown fingerprint information execution program

Usage

Read the fingerprint information, the light turns green if it matches. Otherwise the light turns red.

GameBoy

Feature introduction

Read the key value of the gameboy

Get is press Return button status, continuous detection

Get was pressed Return button status, check once

Usage

If the up button is pressed, light turns green. If the down button is pressed, light turns red.

Joystick

Feature introduction

Return joystick data

Get X value Return X-axis direction data

Get Y value Return Y-axis direction data

Is pressed Return True when the button is pressed

Get reverse X value Return X-axis reverse data

Get reverse Y value Return y-axis reverse data

Set LED pos color Set the color of the LED in specified place

Usage

The screen displays the joystick data

KeyBoard

Feature introduction

Return keyboard key data

Get press string Return button character

Clear press string Clear input characters

Delete press string last byte Delete the last byte entered

Get press button int value Return button ASIIC value

Is new button pressed Return true if the button is pressed

Usage

The screen displays the input number

RFID

Feature introduction

Return RFID card data

read string from addr Read data from the specified address

write to addr Write data to address

card near Return true if the RFID card is close

card uid Return RFID card UID

Usage

Screen displays RFID card data

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