8 independent relays with LED status indicators and 8 TTL inputs with Schmitt trigger buffers. Single POKE to change/latch each relay. Read all 8 inputs in a single PEEK. More than one BB-1 can be attached to the computer.
The BB-1 was used for:
- automated fireworks display
- a high school experiment aboard the Space Shuttle
- greenhouses, model railroads, robots
- slide projections with audio
- solar heating
- unattended time-lapse photography
- a wheelchair for a quadriplegics
- make animated films
- monitor laboratory conditions
- read punch cards and tape
- teach digital and analog electronics
Related Content
- An inexpensive computer and interface for research in the behavioral sciences (article)
- Analog-Digital Converter (article)
- BB-1 8-Bit Input/Output Module Kit (article)
- BB-1 Manual (document)
- TS-1000 I/O Board (article)
- Using the Byte-Back BB-1 and the ZX81 as a Control Device (article)
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