The RDM Responder has built-in support for the following Sub-devices :

• MCP23S08
• 8 digital output lines. Default clock speed : 2 MHz.
• MCP23S17
• 16 digital output lines. Default clock speed : 2 MHz.
• MCP4822
• 2 analog output lines. Default clock speed : 15 MHz.
• MCP4902
• 2 analog output lines. Default clock speed : 15 MHz.
• SPI_DIO
• 7 digital output lines.
• http://www.bitwizard.nl/wiki/index.php/SPI_DIO
• SPI_LCD
• 16x2 LCD
• http://www.bitwizard.nl/wiki/index.php/SPI_LCD
• SPI_7FETs
• The 7FETs board is capable of sinking about 1A per output.
• http://www.bitwizard.nl/wiki/index.php/SPI_7FETs
• SPI_RELAY
• The Relay board allow you to drive two relays.
• http://www.bitwizard.nl/wiki/index.php/Relay
• SPI_DIMMER
• This ia a dimmer board suitable for resistive loads of up to 4A (suitable for both 230V and 115V power systems).
• http://www.bitwizard.nl/wiki/index.php/Dimmer