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Esprit

r4d10n·esprit

Esprit PCB layout, top view — open source ESP32 board by r4d10n
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About the Esprit PCB

Esprit is an open source ESP32 PCB design by r4d10n, published on GitHub. It is a 4-layer board measuring 38.1 × 52.1 mm, with 25 components from 16 distinct parts.

Its main chip is the ESP32_DEVKIT_V1_DOIT, from the ESP32 family. By type, the board carries 8 resistors, 5 connectors, 5 capacitors, 3 diodes, 2 switches and 1 IC.

It belongs with the rf & radio and iot & wireless designs in this gallery.

From the project

ESPRI Radio Interface - Through Hole version with ESP32 DOIT board

ESPRI project provides an integrated Digital Audio / Programming Interface for Quangsheng UV-K5, Baofeng UV-5R and other Kenwood-style connector radios, similar to the excellent AIOC project. With ESP32 offering WiFi/Bluetooth connectivity, the possibilities are endless !

Since Lolin32 Lite is not common in this part of the world and SMD sourcing / assembly is still cumbersome, we've attempted a Through Hole version for the most common 30 pin ESP32 DOIT board.

Esprit, from the project README
From the project README

Main components on the Esprit

ESP32_DEVKIT_V1_DOIT

Esprit bill of materials (BOM)

25 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32_DEVKIT_V1_DOIT
ESP32_DevKit_V1_DOIT
U1
1
2N7000
Q1
1
~
J1
3
CONN_01X02_PIN
Conn_01x02_Pin
J2, J3, J5
1
CONN_02X04_TOP_BOTTOM
Conn_02x04_Top_Bottom
J4
2
SW_Push
SW1, SW2
1
~
D1
2
LED
D2, D3
1
100UF
100uF
C1
1
1UF
1uF
C2
1
100NF
100nF
C3
2
5NF
5nF
C4, C5
1
330R
R1
3
10K
10k
R2, R3, R6
2
100K
100k
R4, R5
2
1k
R7, R8

Esprit design files

The KiCad project lives in the r4d10n/esprit repository on GitHub; these links point at the commit this page was built from.

Esprit: common questions

What microcontroller does the Esprit use?

The Esprit is built around the ESP32_DEVKIT_V1_DOIT, from the ESP32 family.

How big is the Esprit PCB?

The Esprit measures 38.1 × 52.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Esprit?

25 components, from 16 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 Esprit design files?

From the r4d10n/esprit repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Esprit design in my own project?

The repository has no license, so all rights stay with r4d10n. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Esprit 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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