

Node main
KiCAD project and Arduino code for the Node module
- Size
- 20 × 110 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 41
- Pads
- 159
- Tracks, vias
- 683, 38
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 Feb 2021
- Updated
- 15 Feb 2021
Overview
Node main is an open-source printed circuit board by attoparsec, from the attoparsec/Node repository on GitHub. It is a 2-layer board of 20 × 110 mm with 47 parts on 41 nets, routed with 683 tracks and 38 vias.
It is built around the ATMEGA328P-PU, L7805 and BAT85. Its parts include 16 resistors, 12 diodes, 5 capacitors, 3 connectors and 2 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
3ATMEGA328P-PU
DIP-28-300mil-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH DIP-28-300mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsBAT85
DO-341 Independent 200mA 2uA@25V 30V 5A 800mV@100mA DO-34 Schottky Diodes ROHSNexperiaSchottky Diodes
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 1K | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18 |
| 12 | Bat85 | Diode_SMD:D_SOD-123F | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12 |
| 2 | 22p | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2 |
| 2 | Conn_01x04_Male | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | PASSTHRU1, PASSTHRU2 |
| 1 | 0.01U | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C5 |
| 1 | 0.33U | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C4 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | ATmega328P-PU | Package_DIP:DIP-28_W7.62mm_Socket | U1 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | START1 |
| 1 | Conn_01x10_Male | Connector_PinHeader_1.27mm:PinHeader_1x10_P1.27mm_Vertical | J4 |
| 1 | Conn_01x12_Male | Connector_PinHeader_1.27mm:PinHeader_1x12_P1.27mm_Vertical | J2 |
| 1 | Conn_02x03_Male | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | ICSP |
| 1 | Conn_02x05_Odd_Even | Attoparsec:Shrouded_power_header | J5 |
| 1 | Crystal | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | FTDI | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | FTDI |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Vertical | U2 |
| 1 | LED | LED_SMD:LED_1206_3216Metric | POWER! |
| 1 | LOGO | LOGO | G*** |
| 1 | SW_SPST | Button_Switch_SMD:SW_SPST_PTS645 | RESET |
Questions
How big is the Node main PCB?
It measures 20 × 110 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Node main use?
47 parts, built around the ATMEGA328P-PU, L7805 and BAT85. 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 Node main KiCad files?
From the attoparsec/Node repository on GitHub, at the commit this page was made from: the board is node_main.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Node main design in my own project?
Its repository states no licence, so its author keeps all rights: ask attoparsec before reusing the design.
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