4 layers
2 layers
CPU meter
swolegoal/CPU-Graph-PCBATMEGA 328P-based quad-core CPU monitor
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 112
- Pads
- 276
- Tracks, vias
- 819, 113
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 26 Jul 2016
- Updated
- 3 Aug 2016
Overview
CPU meter is an open-source printed circuit board by swolegoal, from the swolegoal/CPU-Graph-PCB repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board with 32 parts on 112 nets, routed with 819 tracks and 113 vias.
It is built around the ATMEGA328-PU, 74HC595 and LM7805. Its parts include 7 ICs, 4 capacitors, 4 connectors, 1 resistor and 1 switch. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATMEGA328-PU
PDIP-28-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
LM7805
TO-2630℃~+125℃ 1 1A 20V 2V 42uV 5V 62dB@(120Hz) 8mA Fixed Over Temperature Protection、Short Circuit Protection Positive TO-263 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSYONGYUTAIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdArduino-based CPU Graph PCB
Opening this project
Launch KiCAD and Open the CPU_meter.pro file.
Disclaimer
This is my first PCB ever! I designed it using KiCAD on my Arch Linux laptop.
What's done (for now)
- Schematic diagram
- Select and make footprints
TODO
- Finalize board layout
LICENSE
The project is licensed under the terms of the GPLv2 license. See the included LICENSE file for more information.
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 74HC595 | Housings_DIP:DIP-16_W7.62mm_LongPads | U1, U2, U3, U4, U5 |
| 4 | DOT-BAR2 | Display:HDSP-48xx | BAR1, BAR2, BAR3, BAR4 |
| 4 | RR8 | Resistor array:Resistor_Array_SIP10 | RR1, RR2, RR3, RR4 |
| 2 | 100 uF | Capacitors_ThroughHole:C_Radial_D5_L11_P2 | C3, C4 |
| 2 | 22 pF | Capacitors_ThroughHole:C_Disc_D6_P5 | C1, C2 |
| 1 | +5V GND | Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_2pol | P4 |
| 1 | 10K | Resistors_ThroughHole:Resistor_Horizontal_RM10mm | R1 |
| 1 | 16.00 MHz | Crystals:Crystal_HC49-U_Vertical | Y1 |
| 1 | ATMEGA328P | Housings_DIP:DIP-28_W7.62mm_LongPads | IC1 |
| 1 | CONN_01X14 | Connect:IDC_Header_Straight_14pins | P2 |
| 1 | GND VIN | Terminal_Blocks:TerminalBlock_Pheonix_PT-3.5mm_2pol | P3 |
| 1 | LM7805 | Resistor array:TO-220_Neutral123_Horizontal_Reverse | U6 |
| 1 | RX TX | Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_2pol | P1 |
| 1 | SPST | Buttons_Switches_SMD:SW_SPST_FSMSM | SW1 |
The 26 most common of 32 parts.
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Questions
What parts does the CPU meter use?
32 parts, built around the ATMEGA328-PU, 74HC595 and LM7805. 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 CPU meter KiCad files?
From the swolegoal/CPU-Graph-PCB repository on GitHub, at the commit this page was made from: the board is CPU_meter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CPU meter design in my own project?
Its repository publishes it under the GPL-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).