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Compute Node

AkshathRaghav·boilernet·kicad_projects/compute_nodes/Compute Node.kicad_pcb

Compute Node PCB layout, top view — open source ESP32 board by AkshathRaghav
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About the Compute Node PCB

Compute Node is an open source ESP32 PCB design by AkshathRaghav, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 50 × 74 mm, with 34 components from 19 distinct parts.

Its main chip is the ESP32-WROVER-E, from the ESP32 family. Other key parts include the AMS1117-3.3, CP2102N-Axx-xQFN28 and PESD5V0L2BT. By type, the board carries 10 capacitors, 9 resistors, 5 ICs, 3 switches, 3 diodes and 2 transistors.

From the project

Code release for BoilerNet, demo'd at SPARK S'25 as a Purdue Senior Design Capstone. Associated PCB Design and 3D Prints within.

This project aimed to develop a Network Attached Storage utilizing ESP32 MCUs. The aptly-named BoilerNet aims to enable In-Network-compute alongside swappable disks and compute workloads, neatly brought together by a cloud-hosted Dashboard interface. There are a few core ideas that form the foundation for this ”cluster” – Low Power Usage, Plug-and-Play Workloads, High Scalability.

Compute Node, from the project README
From the project README

Main components on the Compute Node

ESP32-WROVER-EAMS1117-3.3CP2102N-Axx-xQFN28PESD5V0L2BT

Compute Node bill of materials (BOM)

34 components, 19 distinct parts.

QtyPartRefs
1
ESP32-WROVER-E
U1
1
AMS1117-3.3
U2
1
CP2102N-Axx-xQFN28
U3
2
PESD5V0L2BT
U4, U5
2
SS8050
Q1, Q2
1
USB_B_Micro
J2
1
Conn_02x04_Odd_Even
J3
3
SW_Push
SW1, SW2, SW3
1
RED LED
D1
1
1N5819
D2
1
BLUE LED
D3
3
22uF
C1, C2, C7
6
0.1uF
C3, C4, C5, C8, C9, C10
1
10uF
C6
2
2k
R1, R6
4
10k
R2, R3, R7, R8
1
22.1k
R4
1
47.5k
R5
1
150
R9

Compute Node design files

The KiCad project lives in the AkshathRaghav/boilernet repository on GitHub; these links point at the commit this page was built from.

Compute Node: common questions

What microcontroller does the Compute Node use?

The Compute Node is built around the ESP32-WROVER-E, from the ESP32 family.

How big is the Compute Node PCB?

The Compute Node measures 50 × 74 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Compute Node?

34 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the Compute Node design files?

From the AkshathRaghav/boilernet repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Compute Node design in my own project?

Yes, under the terms of its Apache-2.0 license, which AkshathRaghav chose for the repository.

Can I test firmware for the Compute Node without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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