HardLabs

Esp32-IoT

F45c·esp32-IoT·pcb/Esp32Sensors.kicad_pcb

Esp32-IoT PCB layout, top view — open source ESP32 board by F45c

About the Esp32-IoT PCB

Esp32-IoT is an open source ESP32 PCB design by F45c, published on GitHub. It is a 2-layer board measuring 51.8 × 49 mm, with 47 components from 27 distinct parts.

Its main chip is the ESP32-C3-MINI-1, from the ESP32 family. Other key parts include the DHT11, AHT20, BMP280, MCP1702T-3302E/CB and LM393. By type, the board carries 17 capacitors, 13 resistors, 7 ICs, 2 connectors and 1 diode.

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

From the project

An Esp32 packed with sensors for IoT use. It uses the Esp32-C3-Mini-1 module that includes an antenna and it receives data from lots of sensors like heart rate, temperature, flame detector and much more.

An Esp32 packed with sensors for IoT use. It uses the Esp32-C3-Mini-1 module that includes an antenna and it receives data from lots of sensors like heart rate, temperature, flame detector and much more.

Originally, I would have unsoldered the MQ-135 gas sensor and solder it to my pcb, but I wasn't able to because of how to module is designed so I stuck the pins that are sticking out of the bottom of the board into my pcb and it fits.

Esp32-IoT, from the project README
From the project README

Main components on the Esp32-IoT

ESP32-C3-MINI-1DHT11AHT20BMP280MCP1702T-3302E/CBLM393

Esp32-IoT bill of materials (BOM)

47 components, 27 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3-MINI-1
U1
1
DHT11
U2
1
AHT20
U4
1
BMP280
U5
1
MCP1702T-3302E/CB
MCP1702T-3302E_CB
U8
2
LM393
U10, U11
1
GMSB0532112YEU
J1
1
USB4215-03-A_REVA
J8
1
DS18B20
DS18B20
1
Motion Sensor
HC-SR501
1
MAX30102
MAX30102
1
MPU-6050
MPU-6050
1
MQ-6
MQ-135
2
10k poty
RV1, RV2
1
LED
D2
12
100NF
100nF
C1, C2, C4, C5, C6, C9, C10, C12 +4
1
10UF
10uF
C3
1
2.2NF
2.2nF
C7
1
10NF
10nF
C8
2
1UF
1uF
C11, C13
Show 7 more
QtyPartRefs
1
5KOHM
5kohm
R1
4
10KOHM
10kohm
R3, R7, R8, R12
1
330OHM
330ohm
R4
2
2K-4.7K
2k-4.7k
R5, R6
2
100OHM
100ohm
R9, R13
1
33K
33k
R11
2
22OHM
22ohm
R14, R15

Esp32-IoT design files

The KiCad project lives in the F45c/esp32-IoT repository on GitHub; these links point at the commit this page was built from.

Esp32-IoT: common questions

What microcontroller does the Esp32-IoT use?

The Esp32-IoT is built around the ESP32-C3-MINI-1, from the ESP32 family.

How big is the Esp32-IoT PCB?

The Esp32-IoT measures 51.8 × 49 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp32-IoT?

47 components, from 27 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-IoT design files?

From the F45c/esp32-IoT 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-IoT design in my own project?

The repository has no license, so all rights stay with F45c. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Esp32-IoT 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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