I've been working over the past couple weeks on the design of the new board for NanoSeeker, and its done now, and sent off to
SeeedStudio for manufacturing.
Here's the schematic:
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| NanoSeeker v2.0 Schematic |
The layout was difficult, because the board is only 26mm wide:
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| NanoSeeker v2.0 PCB - Top & Bottom |
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| NanoSeeker v2.0 PCB - Top Only |
The board is going to be done in yellow, which I think is a nice color for an underwater vehicle. Since the shell is clear, it will all be on display. I'm having a surface mount stencil made by
OSH Stencils.
I'm again using one of the awesome
Pololu 3.3 volt switching up/down voltage regulators to provide power for everything, from the
180 mAh 7.4 volt Lipo battery.
While I'm waiting for the new board to arrive (will be ~4 weeks), I'll work on getting some of the mechanical parts together (dive plane/rudder plus linear actuators), as well as getting started on some of the software that will be needed on the sub.
2 Comments:
Hey Jon, I saw your nanoseeker on hackaday and i noticed that you added bluetooth for a remote control. I'm curious as to how well the bluetooth works underwater as water is an excellent low pass filter. I am doing a similar project, trying to transmit data underwater, and I seem to find that any signal over several kHz doesn't seem to pass through the medium. I am currently experimenting with old school Bell 202 modems attached to a blackfin transmitter and receiver with fairly good results. The only downfall is the slow baud rates. Please send any advice/comments, its always appreciated.
By
Unknown, At
October 26, 2014 at 12:22 AM
Reuben - bluetooth doesn't work at all under water - the BT module is so I can talk to the sub while it is on the bench, but still sealed. I can pull log files, push new scripts, all without having to crack the seal.
By
Unknown, At
October 26, 2014 at 5:01 PM
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