Andrew,
Looks awesome! I'm glad someone was finally able to make a nice homebrew board. Any chance you can upload the gerber/image you used to etch the board?
- Bryscus
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Andrew,
Different ICs have different pinouts. Most notably my schematic calls for a dual NAND package and you are showing a quad NAND package. The pins were mostly for my own reference when tracing the connections on the board. Alternate parts should work just fine as long as you follow the...
Lionel,
Sorry for the slow reply, I've been really busy. I still haven't actually tested this circuit, but it should work as depicted. Here is the schematic. I thought I would have to upload the file again, but it appears that it remembers my uploads. If the image is deleted again it will...
Duke,
I can say that at the moment I don't plan on selling these. After extensive searching on the web, I noticed that there was some information for other dive computers but none for the puck so I thought I'd add my two cents. After finally breaking down and buying the expensive cable I...
buton,
- The Mares dive software doesn't really care what type of device is connected to it since you can train the software to find whatever COM port the dive computer is on. Assuming the drivers are installed for a USB to serial converter, theoretically any converter would work. Thus, the...
A quick follow-up to my previous post with the schematic. The Schmitt Trigger NAND gate chip should be powered by the CP2102 board at around 3.3 volts (the CP2102 board should have connections for power, gnd, tx and rx at least). The grounds between the NAND chip and CP2102 board should also...
Moerby,
I have recently come across a similar situation. I'm tired of the costs of these interface cables being so high. It's just ridiculous. At this point in the game every computer should come with a cable - they're pretty cheap to make. The Mares Drak uses a CP2102 serial to USB...
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