Peripheral Check lists

For tape reader: https://trello.com/b/4i8C4pdr/tape-reader

For teleprinter: https://trello.com/b/P3vJH19m/teleprinter

For tape writer: https://trello.com/b/pmllwXIK/tape-writer

For delay line: https://trello.com/b/LqT1DA6O/delay-line

For initial orders: https://trello.com/b/5LXbtwa8/initial-orders

The labels correspond to who is doing what:

• Mary == purple
• Peter == green
• Dan == orange

For Chip hack bring along:

• 3D printed doubles
• File and knife for the 3D printed objects
• 3D printer? --> Quite bulky and might not work or take too long. Also loud.
• Box of spare components: op amps (blow very easily), capacitors, resisters, chips, etc --> Any spares already bought as well as assorted box of resisters and capacitors
• Soldering set for a quick fix up (not for participants use?)

There were 32 delay lines. How to emulate:

• Use one i/p & one o/p pin for FPGA
• Use one i/p & one o/p pin for an audio signal along a wire
• One clk pulse read i/p pin & send o/p pin
• Find the next output frequency
• Convert input into binary if asked
• Next clk pulse read next i/p pin and send o/p pin

The wire delay needs to be long enough to be able to have 35 bits. Can I use another Arduino connected to the wire to read the input, store in an array (queue) and send out the next to the main Arduino? This wire Arduino would be on the same clock so every time it changed the Arduino would pop the next o/p off the queue.

Level shifter:

• Bidirectional or two unidirectional?
• Able to build using common emitter configuration
• Use a 6 bit one. What can use 6th bit for?