Arduino Uno R3 Any clone works; 16 MHz / 5 V. 1 MPU‑6050 breakout GY‑521 or similar I²C board. 1 HC‑05 Bluetooth module Default baud 9600 bd. — Male‑female jumper wires 1 3.3 V regulator (optional) If ...

Lets you choose to use Arduino pins, shift register Input/Output, I2C PCF8574/PCF8575, AW9523, and MCP23017 in an inter-changable way. Use it in your sketch to treat shift registers or i2c expanders ...

Next, wire up the LCD screen and mount it to the base too. With that done, upload the HMI and Arduino code and connect the power supply to the paper cutting machine. Now all that remains is to ...