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Altair-Duino expansion boards
Background
88-ACR card
This was once available in kit form at https://adwaterandstir.com/product-category/parts/, but it has recently been unlisted from the store. Instead, we will have to source the parts ourselves based on the source files. Easiest to obtain is the PCB, which can be simply ordered from OSHPark1). A BOM is included below (carefully note package dimensions!).
| Part | Quantity needed | |
|---|---|---|
| 22 pF, 2.54 mm | 2 | |
| 22 nF, 2.54 mm | 1 | |
| 100 nF, 2.54 mm | 6 | |
| 150 R, 1/4 W | 1 | |
| 1 k, 1/4 W | 1 | |
| 2.2 k, 1/4 W | 1 | |
| 10 k, 1/4 W | 3 | |
| 47 k, 1/4 W | 1 | |
| 100 k, 1/4 W | 1 | |
| 1 M, 1/4 W | 1 | |
| green LED, 2.54 mm | 1 | |
| ATMega328P-PU, DIP-28 | 1 | |
| 74HC126, DIP-14 | 1 | |
| CD4068BE, DIP-14 | 1 | |
| 74HC00, DIP-14 | 1 | |
| 74HC04, DIP-14 | 1 | |
| LM358N, DIP-8 | 1 | |
| 8 MHz crystal, HC-49S | 1 | |
| 3.5 mm audio jack | 2 | AliExpress |
| 1×3 pin header | 7 | |
| DIP-8 socket | 1 | |
| DIP-14 socket | 4 | |
| DIP-28 socket | 1 | |
| SBH11-PBPC-D13-RA-BK | 1 | DigiKey |
SPI/I2C card
They probably didn't have these back in the day.
1)
What will we do with the extra two boards? Should we purchase enough components to fully assemble all three? Maybe someone on the mailing list would want them.