HardLabs

Osciloscope-ESP32

cristobalcuevas·Osciloscope-ESP32·PCB/Proyecto.kicad_pcb

Osciloscope-ESP32 PCB layout, top view — open source ESP32 board by cristobalcuevas

About the Osciloscope-ESP32 PCB

Osciloscope-ESP32 is an open source ESP32 PCB design by cristobalcuevas, published on GitHub. It is a 2-layer board measuring 137.5 × 42.5 mm, with 79 components from 20 distinct parts.

Its main chip is the ESP32-DEVKIT-V1, from the ESP32 family. Other key parts include the TL084, OPA4340UA, INA128, LM1117-3.3 and LM2776. By type, the board carries 32 resistors, 18 capacitors, 12 jumpers, 10 ICs, 5 connectors and 1 fuse.

From the project

Proyecto de Tesis

It was based on designing a board that could do the acquisition and conditioning of analog signals so that later they would be read by the ESP32 and displayed on a local server within the memory of the ESP32, so that several devices could access through the IP simultaneously.

Osciloscope-ESP32, from the project README
From the project README

Main components on the Osciloscope-ESP32

TL084OPA4340UAINA128ESP32-DEVKIT-V1LM1117-3.3LM2776

Osciloscope-ESP32 bill of materials (BOM)

79 components, 20 distinct parts.

QtyPartRefs
2
TL084
U1, U2
1
OPA4340UA
U3
4
INA128
U4, U5, U6, U7
1
ESP32-DEVKIT-V1
U8
1
LM1117-3.3
U9
1
LM2776
U10
4
Conn_Coaxial
J1, J2, J3, J4
1
Screw_Terminal
J5
1
Fuse
F1
12
Jumper
JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 +4
1
RAC05-12DC
PS1
12
0.1u
C1, C2, C3, C4, C5, C6, C7, C8 +4
2
10u
C9, C10
1
1u
C11
2
2.2u
C12, C13
1
1u
C18
8
200k
R1, R2, R11, R12, R21, R22, R31, R32
4
20k
R3, R13, R23, R33
4
1k
R4, R14, R24, R34
16
100k
R5, R6, R7, R8, R15, R16, R17, R18 +8

Osciloscope-ESP32 design files

The KiCad project lives in the cristobalcuevas/Osciloscope-ESP32 repository on GitHub; these links point at the commit this page was built from.

Osciloscope-ESP32: common questions

What microcontroller does the Osciloscope-ESP32 use?

The Osciloscope-ESP32 is built around the ESP32-DEVKIT-V1, from the ESP32 family.

How big is the Osciloscope-ESP32 PCB?

The Osciloscope-ESP32 measures 137.5 × 42.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Osciloscope-ESP32?

79 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Osciloscope-ESP32 design files?

From the cristobalcuevas/Osciloscope-ESP32 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Osciloscope-ESP32 design in my own project?

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

Can I test firmware for the Osciloscope-ESP32 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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