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Esp32-4-channel relays

leomanangka·esp32-4-channel-relays

Esp32-4-channel relays PCB layout, top view — open source ESP32 board by leomanangka

About the Esp32-4-channel relays PCB

Esp32-4-channel relays is an open source ESP32 PCB design by leomanangka, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 86.4 × 86.6 mm, with 59 components from 25 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the AMS1117-3.3, CH340C, PRTR5V0U2X and PC817. By type, the board carries 16 resistors, 9 diodes, 9 capacitors, 8 ICs, 5 transistors and 4 connectors.

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

From the project

PCB design four channel relays with ESP32-WROOM-32

This repository contains the PCB design files, schematic, and 3D model image for a 4-channel relay board based on the ESP32-WROOM-32 module. The board is designed for controlling various electronic devices such as light, fans, motors, and more.

- Four independently controllable 5V relays. - ESP32-WROOM-32 module for wireless connectivity and easy programming. - Terminal block for easy integration to the electronic devices. - USB TYPE-C connector for power and programming - Small form factor for easy integration into any project.

Esp32-4-channel relays, from the project README
From the project README

Main components on the Esp32-4-channel relays

AMS1117-3.3CH340CPRTR5V0U2XESP32-WROOM-32PC817

Esp32-4-channel relays bill of materials (BOM)

59 components, 25 distinct parts.

QtyPartRefs
1
AMS1117-3.3
U1
1
CH340C
U2
1
PRTR5V0U2X
U3
1
ESP32-WROOM-32
U4
4
PC817
U5, U6, U7, U8
1
MBT3904DW1
Q1
4
BC547A
Q2, Q3, Q4, Q5
1
Relay-1
J1
1
Relay-2
J2
1
Relay-3
J3
1
Relay-4
J4
1
500mA
F1
4
SRD-05VDC-SL-C
K1, K2, K3, K4
2
SW_SKQG
SW1, SW2
1
HRO-TYPE-C-31-M-12
USB1
1
YELLOW_LED
D1
4
RED_LED
D2, D4, D6, D8
4
1N4007
D3, D5, D7, D9
3
22uF
C1, C2, C7
6
0.1uF
C3, C4, C5, C6, C8, C9
Show 5 more
QtyPartRefs
1
2K
R1
2
5.1K
R2, R3
2
22
R4, R5
3
10K
R6, R7, R8
8
1K
R9, R10, R11, R12, R13, R14, R15, R16

Esp32-4-channel relays design files

The KiCad project lives in the leomanangka/esp32-4-channel-relays repository on GitHub; these links point at the commit this page was built from.

Esp32-4-channel relays: common questions

What microcontroller does the Esp32-4-channel relays use?

The Esp32-4-channel relays is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the Esp32-4-channel relays PCB?

The Esp32-4-channel relays measures 86.4 × 86.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp32-4-channel relays?

59 components, from 25 distinct parts. The full bill of materials is listed on this page.

Where can I download the Esp32-4-channel relays design files?

From the leomanangka/esp32-4-channel-relays repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Esp32-4-channel relays design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which leomanangka chose for the repository.

Can I test firmware for the Esp32-4-channel relays 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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