2 layers180.1 × 180.3 mm
2 layers110 × 99.6 mm
A PCI Express card with an inbuilt PWM fan controller and mounting points for an 80mm fan.
- Size
- 110 × 99.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 15
- Pads
- 74
- Tracks, vias
- 132, 23
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 26 Dec 2022
- Updated
- 22 Jul 2024
Overview
PCIce is an open-source printed circuit board by ZoidTechnology, from the ZoidTechnology/PCIce repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 110 × 99.6 mm with 22 parts on 15 nets, routed with 132 tracks and 23 vias.
It is built around the ATTINY13A-SU. Its parts include 5 resistors, 4 diodes, 3 capacitors, 3 connectors and 2 ICs. It belongs with the computers and single-board computers boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
readme.mdPCIce
A PCI Express card with an inbuilt PWM fan controller and mounting points for an 80mm fan.
PCIce is available to buy on Tindie.
More information can be found on my website.
Hardware
The hardware is based on an ATtiny13A which outputs a 25kHz PWM signal to the fan. A button is used for speed control, and the current speed is displayed on four multiplexed LEDs.
Firmware
Functionality
The firmware attempts to load the speed setting from EEPROM on boot. The speed setting is stored twice to guard against corruption. The second copy is inverted to detect a blank EEPROM. The speed will default to maximum if corruption is detected to prevent overheating. The button is debounced in software and must be released for a short period before the next press is registered.
Building
The firmware can be compiled and flashed with the build script inside the firmware directory. This script expects an AVRISP MKII to be connected over USB. avr-gcc, avr-objcopy, avrdude and avr-libc are required to build the firmware.
License
PCIce is licensed under the GNU GPLv3 license. This license does not cover the use of Zoid Technology trademarks. A list of trademarks can be found here.
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 4K7 | _Footprints:R_0805 | R2, R3, R4, R5 |
| 4 | LED | _Footprints:LED_0805 | D1, D2, D3, D4 |
| 2 | 1U | _Footprints:C_0805 | C1, C2 |
| 1 | 100N | _Footprints:C_0805 | C3 |
| 1 | 1A | _Footprints:F_1812 | F1 |
| 1 | 220 | _Footprints:R_0805 | R1 |
| 1 | 5V SOT-89 REG | _Footprints:SOT89-3 | U1 |
| 1 | ATTINY13A | _Footprints:SOIC-8 | U2 |
| 1 | CON 2X3 | _Footprints:GENERIC_IDC_2X3 | J1 |
| 1 | CON 3+1 | _Footprints:744-81-04TB1B | J2 |
| 1 | LPTS | _Footprints:GENERIC_LOW_PROFILE_SWITCH | SW1 |
| 1 | PCIE X1 12V | _Footprints:PCIE_X1_12V | J3 |
The 19 most common of 22 parts.
Questions
How big is the PCIce PCB?
It measures 110 × 99.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PCIce use?
22 parts, built around the ATTINY13A-SU. 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 PCIce KiCad files?
From the ZoidTechnology/PCIce repository on GitHub, at the commit this page was made from: the board is hardware/pcice.kicad_pcb and its schematic hardware/pcice.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PCIce design in my own project?
Its repository publishes it under the GPL-3.0 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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