Pdn brain
About the Pdn brain PCB
Pdn brain is an open source ESP32 PCB design by alleycatassetacquisitions, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 86.4 × 38.1 mm, with 14 components from 10 distinct parts.
Its main chip is the ESP32-S3-WROOM-1(N8R8), from the ESP32 family. By type, the board carries 4 diodes, 3 connectors, 2 resistors, 1 IC, 1 switch and 1 capacitor.
From the project
The PCB's for Alleycat's Portable Data Node
Main components on the Pdn brain
Pdn brain bill of materials (BOM)
14 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-S3-WROOM-1(N8R8) | WIRELM-SMD_ESP32-S3-WROOM-1 | U6 |
| 1 | PH-6AW_C722785 | CONN-TH_PH-6AW | CN1 |
| 2 | PH-4AW_C722777 | CONN-TH_PH-4AW_C722777 | CN2, CN3 |
| 1 | TX Jack | AUDIO-SMD_PJ-320B | Audio1 |
| 1 | RX Jack | AUDIO-SMD_PJ-320B | Audio2 |
| 1 | BOOT | KEY-SMD_L6.0-W3.5-LS8.0 | SW4 |
| 4 | TVS Diode | SOD-323_L1.8-W1.3-LS2.5-RD | D6, D7, D8, D9 |
| 1 | 1uF | C0402 | C1 |
| 1 | 10k | R_0603_1608Metric | R12 |
| 1 | 1k | R_0603_1608Metric | R15 |
Pdn brain design files
The KiCad project lives in the alleycatassetacquisitions/pdn-hardware repository on GitHub; these links point at the commit this page was built from.
- Layoutpdn-brain/pdn-brain.kicad_pcb
- Schematicpdn-brain/pdn-brain.kicad_sch
Pdn brain: common questions
What microcontroller does the Pdn brain use?
The Pdn brain is built around the ESP32-S3-WROOM-1(N8R8), from the ESP32 family.
How big is the Pdn brain PCB?
The Pdn brain measures 86.4 × 38.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pdn brain?
14 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Pdn brain design files?
From the alleycatassetacquisitions/pdn-hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Pdn brain design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which alleycatassetacquisitions chose for the repository.
Can I test firmware for the Pdn brain 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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