2 layers28.3 × 39.8 mm
LevelShifter
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
21 parts5.1kGPL-3.0
2 layers57.1 × 24.1 mm
GuiderPort
AndreasFMueller/GuiderPortCamera independent guider port for autoguiding a telescope
- Size
- 57.1 × 24.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 30
- Pads
- 100
- Tracks, vias
- 187, 7
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 7 Jun 2015
- Updated
- 6 Sep 2019
Overview
GuiderPort is an open-source printed circuit board by AndreasFMueller, from the AndreasFMueller/GuiderPort repository on GitHub. It is a 2-layer board of 57.1 × 24.1 mm with 21 parts on 30 nets, routed with 187 tracks and 7 vias.
Its parts include 6 resistors, 5 capacitors, 4 diodes, 3 connectors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdGuiderPort
Most cameras for astrophotography have a guider port for autoguiding. However, this is a really bad arrangment, because it requires an additional cable between the telescope and the mount, adding an additional force that could contribute to telescope flex. This project offers the hardware and software for a standalone guider port attached to a host computer via USB. This eliminates the need for a guider port on the camera, and the guider port ist now directly connected to the guiding computer.
The hardware uses an USB enable AVR microcontroller AT90USB162, but an AT90USB82 is also sufficient. The schematics and board files in KiCAD format are contained in the firmware directory. A suitable case for the guider port hardware can be 3D-printed from the files in the case subdirectory.
The firmware is based on the LUFA library. avr-gcc and avr-libc are also needed to compile it. The Makefile contains targets to program it using the avrispmk2 programmer and avrdude.
The client directory contains a libusb based client to test the device.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 390 | SM0603 | R1, R2, R3, R4 |
| 4 | LED | LED-0603 | D1, D2, D3, D4 |
| 2 | 22 | SM0603 | R5, R6 |
| 2 | 22p | SM0603_Capa | C4, C5 |
| 1 | 0.1u | SM0603_Capa | C2 |
| 1 | 10u | c_tant_B | C1 |
| 1 | 1u | SM0603_Capa | C3 |
| 1 | 8MHz | Q_49U3HMS | X1 |
| 1 | AT90USB162-A | TQFP32 | IC2 |
| 1 | Autoguide | Guiderport | P2 |
| 1 | ISP | pin_array_3x2 | P1 |
| 1 | PC847 | SO16N | IC1 |
| 1 | USB | USB_B | J1 |
Questions
How big is the GuiderPort PCB?
It measures 57.1 × 24.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the GuiderPort use?
21 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the GuiderPort KiCad files?
From the AndreasFMueller/GuiderPort repository on GitHub, at the commit this page was made from: the board is hardware/guiderport.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the GuiderPort design in my own project?
Its repository states no licence, so its author keeps all rights: ask AndreasFMueller before reusing the design.
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