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IoT WA - AIO

RWTH-EBC·OSIGBApp·Schematics/iot-development.hardware.iotgate_v3.iot_0-10v/Design/iot_aio.kicad_pcb

IoT WA - AIO PCB layout, top view — open source ESP32 board by RWTH-EBC
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About the IoT WA - AIO PCB

IoT WA - AIO is an open source ESP32 PCB design by RWTH-EBC, published on GitHub under the MIT license. It is a 2-layer board measuring 75 × 44 mm, with 46 components from 35 distinct parts.

Its main chip is the ESP32-WROOM-32D, from the ESP32 family. Other key parts include the VXO7803-500-M, MCP3021, TLV333IDCKR, NCS2004 and XTR111AIDGQR. By type, the board carries 16 resistors, 12 capacitors, 6 ICs, 4 switches, 2 transistors and 2 connectors.

It belongs with the iot & wireless and test & measurement designs in this gallery.

From the project

Open-Source Internet of Things (IoT) Gateways for Building Automation Applications

This repository entails the specifications and PCB design of a gateway communicating with 0-10 V and 0-20 mA devices.

Specifications: Case: Datasheet outer dimensions: 85 x 85 x 37 mm inner dimensions: 73 x 73 x 25 mm * PCB-Measurements: 75 x 40 x 1.6 mm

Components: ESP32-WROOM-32D(4MB) Header Pins for flashing bridge ESP-Prog Reset Button (EN) Status / Debugging LED DC-DC Buck Converter: VXO7805-500-M-TR Mouser-Link * LDO 5V-3.3V: REG1117-3.3/2K5 Mouser-Link

IoT WA - AIO, from the project README
From the project README

Main components on the IoT WA - AIO

ESP32-WROOM-32DVXO7803-500-MMCP3021TLV333IDCKRNCS2004XTR111AIDGQR

IoT WA - AIO bill of materials (BOM)

46 components, 35 distinct parts.

QtyPartRefs
1
ESP32-WROOM-32D
U1
1
VXO7803-500-M
U2
1
MCP3021
U3
1
TLV333IDCKR
U4
1
NCS2004
U5
1
XTR111AIDGQR
U6
1
MMBT5087LT3G
Q1
1
ISS55EP06LMXTSA1
Q2
1
Conn_02x03
J1
1
Conn_01x09
J3
1
RT424024
K1
2
PTS815
SW1, SW4
1
62200421121
SW2
1
M50-3630242
SW3
1
BAT60A
D1
1
150060RS75000
D2
1
22u
L1
1
10u
C1
2
22u
C2, C3
1
10u
C4
Show 15 more
QtyPartRefs
5
100n
C5, C6, C7, C10, C12
2
1u
C8, C9
1
10n
C11
3
10k
R1, R7, R17
2
2.2k
R2, R3
1
15.8k 0.1%
R4
1
158 0.1%
R5
1
33k 0.1%
R6
1
4.64k 0.1%
R8
1
270
R10
1
10k 0.1%
R11
1
22k
R12
1
8.2k
R13
1
4.99k 0.1%
R14
2
15
R15, R16

IoT WA - AIO design files

The KiCad project lives in the RWTH-EBC/OSIGBApp repository on GitHub; these links point at the commit this page was built from.

IoT WA - AIO: common questions

What microcontroller does the IoT WA - AIO use?

The IoT WA - AIO is built around the ESP32-WROOM-32D, from the ESP32 family.

How big is the IoT WA - AIO PCB?

The IoT WA - AIO measures 75 × 44 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the IoT WA - AIO?

46 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the IoT WA - AIO design files?

From the RWTH-EBC/OSIGBApp repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the IoT WA - AIO design in my own project?

Yes, under the terms of its MIT license, which RWTH-EBC chose for the repository.

Can I test firmware for the IoT WA - AIO 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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