HardLabs

Esp32 rio

dougsthenri·esp32_rio·hardware/board/esp32_rio.kicad_pcb

Esp32 rio PCB layout, top view — open source ESP32 board by dougsthenri

About the Esp32 rio PCB

Esp32 rio is an open source ESP32 PCB design by dougsthenri, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 85 mm, with 219 components from 32 distinct parts.

Its main chip is the BSS138-7-F, from the ESP32 family. Other key parts include the LM2596SX-3.3/NOPB, ESP32-S3-WROOM-1U-N16R2, TLV3202AIDR and ZTL431AFTA. By type, the board carries 108 resistors, 51 transistors, 32 diodes, 11 capacitors, 8 ICs and 6 connectors.

From the project

A low-cost industrial remote input/output device based on the ESP32-S3 SoC from Espressif

Esp32 rio, from the project README
From the project README

Main components on the Esp32 rio

LM2596SX-3.3/NOPBESP32-S3-WROOM-1U-N16R2TLV3202AIDRZTL431AFTA

Esp32 rio bill of materials (BOM)

219 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM2596SX-3.3/NOPB
LM2596S-3.3
U101
1
ESP32-S3-WROOM-1U-N16R2
ESP32-S3-WROOM-1U
U102
5
TLV3202AIDR
TLV3202AID
U201, U202, U203, U204, U205
1
ZTL431AFTA
TL431
U206
31
BSS138-7-F
BSS138
Q101, Q201, Q202, Q203, Q204, Q205, Q206, Q207 +23
20
IRLML6344TRPBF
IRLML6344
Q301, Q302, Q303, Q304, Q305, Q306, Q307, Q308 +12
1
KF142V-5.08-4P
24V_Power
J101
1
External_Programmer
J103
1
GT-USB-7035D
Programming_Port
J104
1
KF142V-5.08-10P
Digital_Input
J201
1
KF142V-5.08-10P
Digital_Output_Bank_0
J301
1
KF142V-5.08-10P
Digital_Output_Bank_1
J302
1
PTS645SH95SMTR92LFS
Reset
SW101
1
PTS645SH95SMTR92LFS
Toggle_Outputs
SW102
1
SS26T3G
D101
1
L-403SRD
Red
D102
30
204-10SYGD/S530-E2-L
Green
D201, D202, D203, D204, D205, D206, D207, D208 +22
1
IHLP6767GZER680M11
68µ
L101
1
EEHZC1H101P
100µ
C101
1
CL10B105KQ8NNNC
1µ
C102
Show 12 more
QtyPartRefs
1
EEEFK1V331P
680µ
C103
1
GRM21BZ70J226ME44L
22µ
C104
6
CC0603JRX7R9BB104
100n
C105, C201, C202, C203, C204, C205
1
CL21B106KAYQNNE
10µ
C206
13
RC0603FR-0710KL
10k
R101, R102, R103, R225, R226, R227, R228, R229 +5
1
AC0603FR-07100RL
100
R104
31
RC0603FR-0768RL
68
R105, R272, R273, R274, R275, R276, R277, R278 +23
2
RC0603FR-075K1L
5.1k
R106, R107
40
RC0603FR-071ML
1M
R201, R202, R203, R204, R205, R206, R207, R208 +32
10
RC0603FR-07649KL
649k
R217, R218, R219, R220, R237, R238, R239, R240 +2
10
RC0603FR-071K2L
1.2k
R221, R222, R223, R224, R233, R234, R235, R236 +2
1
RC0603FR-07330RL
330
R266

Esp32 rio design files

The KiCad project lives in the dougsthenri/esp32_rio repository on GitHub; these links point at the commit this page was built from.

Esp32 rio: common questions

What microcontroller does the Esp32 rio use?

The Esp32 rio is built around the BSS138-7-F, from the ESP32 family.

How big is the Esp32 rio PCB?

The Esp32 rio measures 100 × 85 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp32 rio?

219 components, from 32 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 Esp32 rio design files?

From the dougsthenri/esp32_rio 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 Esp32 rio design in my own project?

Yes, under the terms of its MIT license, which dougsthenri chose for the repository.

Can I test firmware for the Esp32 rio 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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