The Enhanced SPI Interface card (ESPI) lets you connect any SPI integrated circuit to your robot or other automation. The card has a prototyping area as well as pads for both TSSOP and SSOP surface mount chips.
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Features:
- Easily connects to most SPI chips
- Prototyping area as well as TSSOP and SSOP pads
- 5 or 3.3 volt compatible
- Uses the ESPI 7474 circuit for reliable operation
- User space device driver (part of pcdaemon)
The ESPI card must be paired with the "espi" peripheral and driver.
Hardware:
The schematic of the ESPI is shown below. The Eagle schematic and board files are available here: espi.sch and here espi.brd.
