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IoT WA - RTD

RWTH-EBC·OSIGBApp·Schematics/iot-development.hardware.iotgate_v3.iot_temp/Design/iot_rtd.kicad_pcb

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

IoT WA - RTD is an open source ESP32 PCB design by RWTH-EBC, published on GitHub under the MIT license. It is a 2-layer board measuring 120 × 37.5 mm, with 38 components from 21 distinct parts.

Its main chip is the ESP32-WROOM-32D, from the ESP32 family. Other key parts include the MAX31865 and TLV803S. By type, the board carries 12 capacitors, 9 resistors, 4 ICs, 3 diodes, 2 connectors and 2 jumpers.

It belongs with the iot & wireless, sensors 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 temperature sensors.

Specifications: Battery: LiFePo4 18650 cell lipopower.de Battery holder: Datasheet Case dimensions: 120 x 75 x 36 mm Case Datasheet: Spelsberg 2K-16 Drawing

ESP32-WROOM-32D Header Pins for flashing bridge ESP-Prog Reset Button (EN) 2x MAX31865 for 2 RTD-Elements TS3A44159PWR Multiplexer for switching between PLC and ESP32 Mouser-Link Terminal block 18 TB004-508-18BE * Mouser-Link

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

Main components on the IoT WA - RTD

ESP32-WROOM-32DMAX31865TLV803S

IoT WA - RTD bill of materials (BOM)

38 components, 21 distinct parts.

QtyPartRefs
1
ESP32-WROOM-32D
U1
2
MAX31865
U2, U3
1
TLV803S
U4
1
Si2323
Q1
1
Conn_02x03
J1
1
TB004-508-18
J2
1
LiFePo4 18650
BT1
2
Wires
JP1, JP4
2
TS3A44159
K1, K2
2
PTS815
SW1, SW2
2
BAT60A
D1, D3
1
150060RS75000
D2
9
100n
C1, C2, C5, C6, C7, C9, C10, C11 +1
2
1u
C3, C8
1
10u
C4
2
10k
R1, R6
1
6.8k
R2
1
1k
R3
2
3.3k
R4, R12
2
402 0.1%
R5, R13
Show 1 more
QtyPartRefs
1
270
R10

IoT WA - RTD 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 - RTD: common questions

What microcontroller does the IoT WA - RTD use?

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

How big is the IoT WA - RTD PCB?

The IoT WA - RTD measures 120 × 37.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the IoT WA - RTD?

38 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the IoT WA - RTD 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 - RTD 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 - RTD 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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