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Expand Click is an accessory board in mikroBus form factor. It includes the MCP23S17 16-bit I/O expander, which features an SPI interface and clock speeds up to 10 MHz for higher throughput applications. Three HARDWARE ADDRESS SEL jumpers allow you to configure the board address and connect up to eight devices on the same bus. An interrupt-on-change feature is also supported, as well as optional weak pull-ups on each input. The board is set to use the 3.3V mikroBus power supply by default, however soldering the PWR SEL SMD jumper to the 5V position will allow it to be used with 5V mikroBus systems.
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EXPAND 2 click is an accessory board in mikroBUS form factor. It includes the MCP23017 16-bit I/O expander which features an I2C interface and clock speeds up to 1.7 MHz. Three HARDWARE ADDRESS SEL jumpers allow you to configure the board address and connect up to eight devices on the bus. The controller also supports an interrupt-on-change feature, and has optional weak pull-ups on each input. Expand2 click is set to use a 3.3V power supply by default but you can solder PWR SEL SMD jumper to the 5V position if used with 5V systems. |
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EXPAND 3 click carries DS2408, an 8-channel programmable I/O expander that communicates with the target board MCU through a standard Dallas Semiconductor 1-Wire interface (15.3 kbps or 100kbps). The chip also has a factory-lasered 64-bit registration number, which enables multiple EXPAND 3 clicks to be connected on the same data line. For this purpose, the click has additional three pins above the mikroBUS socket. As for the socket, the onboard GP SEL jumper allows you to specify the communication pins (either OW1 or OW0, which are in place of the usual AN and PWM pins on mikroBUS). An additional reset line (RST) is also connected. The board is designed to use either a 3.3V or 5V power supply. |
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Expand 4 click carries TPCIC6A595, a chip that combines an 8-bit serial-in, parallel-out shift register with an 8-bit D-type storage register. |
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