MCP23017 - I2C 16 Input/Output Port Expander GPS Antenna Retail: the device can help

Retail: the device can help retailers keep track of stock levels

Pico Probe debug port - 3-pin JST SH compatible

or Arduino with Adafruit Arcada library support

Featuring the Raspberry Pi RP2350 microcontroller

MCP23017 - I2C 16 Input/Output Port Expander GPS Antenna Retail: the device can helpAdd another 16 pins to your microcontroller using an MCP23017 port expander. The MCP23017 uses two I2C pins (which can be shared with other I2C devices) to provide 16 general purpose pins. Each pin can be set as input, output, or input with a pullup resistor. Additionally, an interrupt can be generated via an external pin when any of the inputs change, eliminating the need for constant polling. This chip operates with a voltage range of 2. 7 5. 5V,