Node
About the Node PCB
Node is an open source AVR/Arduino PCB design by aetas, published on GitHub under the MIT license. It is a 2-layer board measuring 41 × 44 mm, with 14 components from 14 distinct parts.
Its main chip is the Arduino_Mini_01_Socket, from the AVR/Arduino family. Other key parts include the MAX485E and L7805CV. By type, the board carries 4 connectors, 2 ICs, 2 jumpers and 1 resistor.
From the project
PCB files for MqGateway
Schematics and PCB design for MqGateway boards.
Source files can be read with KiCad. GERBER files are available in the releases.
Read more about MqGateway on the documentation site.
If you have found any problem with the PCB projects - please create an issue in aetas/mqgateway repository.
Main components on the Node
Node bill of materials (BOM)
14 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MAX485E | RS485-TTL-CONVERTER | U1 |
| 1 | L7805CV | TO-220-3_Vertical | U2 |
| 1 | Regulator_jumper | pin_strip_2x2 | J1 |
| 1 | RX_B_jumper | pin_strip_2x2 | J2 |
| 1 | TX_A_jumper | pin_strip_2x2 | J3 |
| 1 | RJ45 | RJ45_Amphenol_54602-x08_Horizontal | J4 |
| 1 | RS485_GND_JUMPER | pin_strip_2 | JP1 |
| 1 | RS485_5V_JUMPER | pin_strip_2 | JP2 |
| 1 | ANALOG | Molex_PicoBlade_53047-0410_1x04_P1.25mm_Vertical | OUT1 |
| 1 | DIGITAL | Molex_PicoBlade_53047-0410_1x04_P1.25mm_Vertical | OUT2 |
| 1 | I2C | Molex_PicoBlade_53047-0410_1x04_P1.25mm_Vertical | OUT3 |
| 1 | 1WIRE | Molex_PicoBlade_53047-0310_1x03_P1.25mm_Vertical | OUT4 |
| 1 | Arduino_Mini_01_Socket | Arduino_Pro_Mini_Clone_Socket | XA1 |
| 1 | R | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1 |
Node design files
The KiCad project lives in the aetas/MqGateway-PCB repository on GitHub; these links point at the commit this page was built from.
Node: common questions
What microcontroller does the Node use?
The Node is built around the Arduino_Mini_01_Socket, from the AVR/Arduino family.
How big is the Node PCB?
The Node measures 41 × 44 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Node?
14 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Node design files?
From the aetas/MqGateway-PCB repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Node design in my own project?
Yes, under the terms of its MIT license, which aetas chose for the repository.
Can I test firmware for the Node without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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