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These vibe motors are tiny discs
Size: 100m diameter
which is member of Nextion family
which has a 32-bit ARM Cortex® M0 + core
Never charge or use unattended
1602 LCD Display Shield for Arduino with Push Buttons & Brightness Control 2 Wheel These vibe motors are tinyOne problem with using a typical LCD display is that you give up a lot of GPIO pins to talk to the LCD. Four pins are used to send data, two pins are used for write and clock signals, and another pin or three are used for the backlight for a total of ~6 9 total pins! With an integrated MCP23017 16 bit IO port expander you can add a full display capability to your project with only 2 pins of the I2C port. The 162 translates of a display 16 characters
