4 layers68.9 × 50.7 mm
DigitalClock ATMega328
bostang/PCBs
My repository for documenting all PCB Projects I have done
74 parts
2 layers34.3 × 26.7 mm
Quarterduino
akita11/Quarterduino2Half-size Arduino UNO compatible
- Size
- 34.3 × 26.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 63
- Pads
- 227
- Tracks, vias
- 610, 58
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 22 May 2020
- Updated
- 22 May 2020
Overview
Quarterduino is an open-source printed circuit board by akita11, from the akita11/Quarterduino repository on GitHub, published under the MIT licence. It is a 2-layer board of 34.3 × 26.7 mm with 39 parts on 63 nets, routed with 610 tracks and 58 vias.
It is built around the ATMEGA328P-MU, LMV358 and FDN340P. Its parts include 11 resistors, 6 capacitors, 6 connectors, 5 ICs and 4 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3
ATMEGA328P-MU
HVQFN-32(5x5)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH VQFN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontroller Units (MCUs/MPUs/SOCs)
LMV358
SOP-8-40℃~+125℃ 10pA 10pA 1MHz 2 2.5V~5.5V 20mA 20nV/√Hz@10kHz 2uV/℃ 40uA 5mV 600V/ms 65dB EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOP-8 Operational Amplifier ROHSTECH PUBLICOperational Amplifier
FDN340P
SOT-23-55℃~+150℃ 1 P-Channel 1.5V 121pF 20V 2A 500mW 56pF 7.2nC@4.5V 70mΩ@4.5V 779pF P-Channel SOT-23 MOSFETs ROHSonsemiMOSFETs
README
README.mdQuarterduino
Half-size (Quater-area) Arduino UNO compatible
Author
Junichi Akita (akita@ifdl.jp, @akita11)
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1k | Resistor_SMD:R_0603_1608Metric | R5, R6, R7, R8, R9, R10, R11 |
| 4 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3, D4 |
| 3 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C3, C4 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 10p | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | Digital | Connector_PinSocket_1.27mm:PinSocket_1x08_P1.27mm_Vertical | P3, P4 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | ATmega328P-MU | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm | U4 |
| 1 | Analog | Connector_PinSocket_1.27mm:PinSocket_1x06_P1.27mm_Vertical | P2 |
| 1 | CON_AVRISP | Connector_PinHeader_1.27mm:PinHeader_2x03_P1.27mm_Vertical | CN2 |
| 1 | CON_USB-C-16 | akita:USB-C_16P_TH | CN1 |
| 1 | Crystal_GND24 | akita:Crystal_3.2x2.5mm_4p | Y1 |
| 1 | FDN340P | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | IC_FT232RQ | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm_ThermalVias | U3 |
| 1 | LDO_5p_NJM2865 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | LMV358 | Package_SO:VSSOP-8_3.0x3.0mm_P0.65mm | U2 |
| 1 | Polyfuse | Resistor_SMD:R_1210_3225Metric | F1 |
| 1 | Power | Connector_PinSocket_1.27mm:PinSocket_1x08_P1.27mm_Vertical | P1 |
| 1 | REG_AP7215 | akita:SOT89-3L_TAB | U1 |
The 35 most common of 39 parts.
Questions
How big is the Quarterduino PCB?
It measures 34.3 × 26.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Quarterduino use?
39 parts, built around the ATMEGA328P-MU, LMV358 and FDN340P. 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 Quarterduino KiCad files?
From the akita11/Quarterduino repository on GitHub, at the commit this page was made from: the board is Quarterduino.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Quarterduino 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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