2 layers229.9 × 111.8 mm
2 layers50.8 × 99.1 mm
U arm
Wiles/u-arm3PCB for Linux on 8bit http://dmitry.gr/?r=05.Projects&proj=07.%20Linux%20on%208bit
- Size
- 50.8 × 99.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 54
- Pads
- 125
- Tracks, vias
- 195, 3
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 21 Aug 2018
- Updated
- 18 Apr 2021
Overview
U arm is an open-source printed circuit board by Wiles, from the Wiles/u-arm repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 50.8 × 99.1 mm with 19 parts on 54 nets, routed with 195 tracks and 3 vias.
It is built around the ATMEGA1284P-PU. Its parts include 4 capacitors, 4 resistors, 4 diodes, 2 ICs and 2 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdu-arm
PCB for Linux on 8bit http://dmitry.gr/?r=05.Projects&proj=07.%20Linux%20on%208bit
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 2 | .1u | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C3, C4 |
| 2 | C_Small | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2 |
| 2 | D_Small | Diode_THT:D_T-1_P5.08mm_Horizontal | D3, D4 |
| 2 | LED | LED_THT:LED_D5.0mm | D1, D2 |
| 1 | ATmega1284P-PU | Package_DIP:DIP-40_W15.24mm_Socket | U1 |
| 1 | Crystal | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | FTDI | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J2 |
| 1 | Micro_SD_Card | Connector_Card:SD_TE_2041021 | J1 |
| 1 | SIMM | SIMM:SIMM | U2 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
The 18 most common of 19 parts.
Questions
How big is the U arm PCB?
It measures 50.8 × 99.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the U arm use?
19 parts, built around the ATMEGA1284P-PU. 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 U arm KiCad files?
From the Wiles/u-arm repository on GitHub, at the commit this page was made from: the board is uARM/uARM.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the U arm design in my own project?
Its repository publishes it under the Apache-2.0 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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