ModMyPi MCP23017 HAT - 32 Channel I/O Expansion HAT [Discontinued] _RPI_COOLING_CASE 5mm Purple UVA LED

5mm Purple UVA LED

you realize you don't need LTE cellular)

Finger Straps for electrodes

4GHz quad core processor

You'll also need to program in your Teensy with the SmartMatrix code available on the project website

ModMyPi MCP23017 HAT - 32 Channel I/O Expansion HAT [Discontinued] _RPI_COOLING_CASE 5mm Purple UVA LEDThe MCP23017 HAT from ModMyPi is the perfect I O expansion HAT for your Raspberry Pi (any 40 pin version). The HAT features two removable MCP23017 DIP IC's, which utilise two i2c pins (which can be shared with other devices if required), and in exchange gives your Raspberry Pi an additional 32 GPIO ports! Each I O pin can be configured as an input, output or input with a pull up resistor. The MCP23017 HAT is stackable, featuring selectable i2c address