SMD parts for future workshop

Hey All. Just a quick fyi that I’ve liberated a few parts from the vhs smd collection for a future workshop, I’ll put them back if I don’t follow though. I don’t want to design a pcb and find all the parts gone.

  • FT2232HL (so awesome we have these!)
  • 1.8V LDO
  • 3.3V LDO
  • MAX202

I’m planning to do a variant of Tigard that uses the parts we have and has 0805 passives for ease of assembly. Workshop should be cheap given we have many of the parts already. Will take a few months to get together though.

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AMAZING! Sign me up!

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At the very least I’ll take a kit. I may attend the workshop depending on timing.

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ZOMG yesss!!! I am in should this happen.

Edit: oooo that also looks very hand-solderable.

This is where I’m at so far - it’s about 4x the size of the original to make space for the larger passives and ease of assembly.

I added the db9 'cause I’ve been doing some retrocomputing stuff and cables with level converters are harder to come by now (also was have max202 in our stock so why not use it?).

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I don’t need one but I want one…

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Quick update on this, I’m stalled because there are a number of hardware issues with Tigard. I haven’t decided what to do - might just do an ftdi breakout without the level conversion.

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I changed the board to a simple ft2232 breakout. Should be sending the boards off this week.

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I assembled 5 of these boards in a test run last Monday. Good news is that they work! (well one needs some rework). Bad news is that I used an impossible footprint for the eeprom (SOT23-6 is 5V only). I’ve hacked a SOIC-8 onto the board and it works. The eeprom isn’t essential so I’ll probably run the workshop early next year with what we have.

[1056171.040312] usb 5-4.3.4.2: new high-speed USB device number 96 using xhci_hcd
[1056171.162756] usb 5-4.3.4.2: New USB device found, idVendor=0403, idProduct=6010, bcdDevice= 7.00
[1056171.162759] usb 5-4.3.4.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[1056171.162760] usb 5-4.3.4.2: Product: VHS FT2232 Breakout Oct2022
[1056171.162762] usb 5-4.3.4.2: Manufacturer: Tom Keddie
[1056171.162763] usb 5-4.3.4.2: SerialNumber: TOM01
[1056171.165900] ftdi_sio 5-4.3.4.2:1.0: FTDI USB Serial Device converter detected
[1056171.165926] usb 5-4.3.4.2: Detected FT2232H
[1056171.166532] usb 5-4.3.4.2: FTDI USB Serial Device converter now attached to ttyUSB1
[1056171.169145] ftdi_sio 5-4.3.4.2:1.1: FTDI USB Serial Device converter detected
[1056171.169159] usb 5-4.3.4.2: Detected FT2232H
[1056171.169777] usb 5-4.3.4.2: FTDI USB Serial Device converter now attached to ttyUSB2

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woot - I am in!

1 Like