2 layers82 × 62.5 mm
2 layers49.5 × 49.5 mm
Atmega gpib
cellularmitosis/atmega-gpib16An ATmega-based GPIB-to-USB adapter board.
- Size
- 49.5 × 49.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 33
- Pads
- 112
- Tracks, vias
- 236, 8
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 8 May 2017
- Updated
- 17 Sep 2017
Overview
Atmega gpib is an open-source printed circuit board by cellularmitosis, from the cellularmitosis/atmega-gpib repository on GitHub, published under the MIT licence. It is a 2-layer board of 49.5 × 49.5 mm with 24 parts on 33 nets, routed with 236 tracks and 8 vias.
It is built around the ATMEGA168PA-PN and MCP2221A-I/P. Its parts include 8 capacitors, 5 resistors, 3 diodes, 3 connectors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATMEGA168PA-PN
PDIP-28-40℃~+105℃ 1.8V~5.5V 10bit 16KB 1KB 20MHz 23 512Byte 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MCP2221A-I/P
PDIP-14-40℃~+85℃ 13mA 3V~5.5V 46uA USB 2.0 USB to UART、USB to I2C PDIP-14 USB Converters ROHSMicrochip TechnologyUSB Converters
README
README.mdatmega-gpib
An ATmega-based GPIB-to-USB adapter board.
Status
This board is untested.
Board design v1
Initial board design.
Gerbers
Schematic
PDF.
License
This board design is Open-Source Hardware. It is licensed under the MIT License. It was designed by Jason Pepas.
Thanks
Thanks to Steven Casagrande of Galvant Industries for releasing his GPIB-to-USB adapter as open source hardware. Using a few of his KiCAD footprints saved me a lot of time!
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0.1uF | CERCAP_15_059B_0805 | C1, C7, C8, C9 |
| 3 | 330 | R_AXIAL_0W25_059A_PL | R3, R4, R5 |
| 2 | 33 | R_AXIAL_0W25_059A_PL | R1, R2 |
| 2 | 47pF | CERCAP_15_059B_0805 | C5, C6 |
| 1 | 10nF | CERCAP_15_059B_0805 | C2 |
| 1 | 10uF | ELCAP_10_20_V_059A | C3 |
| 1 | ATMEGA168PA-P | PL_DIP:DIP28_PL | IC1 |
| 1 | CONN_2X1 | SIL-2 | JMP1 |
| 1 | CONN_4X1 | SIL-4 | P1 |
| 1 | ERR | LED_3MM_069A | D3 |
| 1 | FERRITE | FERRITE_AXIAL_04_069A | FB1 |
| 1 | GPIB | 112-024-113R001 | P2 |
| 1 | MCP2221A | DIP14_PL | U1 |
| 1 | OSHW-logo_silkscreen-back_4mm | OSHW-logo_silkscreen-back_4mm | G*** |
| 1 | RX | LED_3MM_069A | D2 |
| 1 | TX | LED_3MM_069A | D1 |
| 1 | USB_B | USB_B | J1 |
Questions
How big is the Atmega gpib PCB?
It measures 49.5 × 49.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Atmega gpib use?
24 parts, built around the ATMEGA168PA-PN and MCP2221A-I/P. 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 Atmega gpib KiCad files?
From the cellularmitosis/atmega-gpib repository on GitHub, at the commit this page was made from: the board is kicad/atmega-gpib.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Atmega gpib design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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