HardLabs

ESP8266-WiFiRelay-IndustrialIoT

ajvizganapathy-pixel·ESP8266-WiFiRelay-IndustrialIoT·wifi relay/wifi relay.kicad_pcb

ESP8266-WiFiRelay-IndustrialIoT PCB layout, top view — open source ESP8266 board by ajvizganapathy-pixel

About the ESP8266-WiFiRelay-IndustrialIoT PCB

ESP8266-WiFiRelay-IndustrialIoT is an open source ESP8266 PCB design by ajvizganapathy-pixel, published on GitHub. It is a 4-layer board measuring 40 × 30 mm, with 19 components from 15 distinct parts.

Its main chip is the ESP8266-01_ESP-01, from the ESP8266 family. Other key parts include the AMS1117-3.3. By type, the board carries 6 resistors, 3 capacitors, 2 ICs, 2 transistors, 2 connectors and 2 diodes.

It belongs with the iot & wireless, displays & leds and usb & debug tools designs in this gallery.

From the project

ESP8266-based WiFi relay for industrial IoT — KiCad PCB, Gerbers, BOM, custom footprint libraries

ESP8266-based WiFi-controlled relay module for industrial IoT and home automation applications. Supports AWS IoT Core integration for cloud-connected control via MQTT.

- Single-channel relay controlled via WiFi (ESP8266 ESP-01S) - AWS IoT Core ready — MQTT-based remote switching - Compact 2-layer PCB with all components included - Production-ready: full Gerber files + BOM + pick-and-place positions - Custom KiCad footprint and 3D model libraries included - Industrial-grade optocoupler isolation (PC817) - 5V relay coil driven by NPN transistor

Main components on the ESP8266-WiFiRelay-IndustrialIoT

AMS1117-3.3ESP8266-01_ESP-01

ESP8266-WiFiRelay-IndustrialIoT bill of materials (BOM)

19 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AMS1117-3.3
U1
1
ESP8266-01_ESP-01
U2
1
PC817-B
Q1
1
2N7002
Q2
1
SCREW_TERMINAL_01X02
Screw_Terminal_01x02
J1
1
SCREW_TERMINAL_01X03
Screw_Terminal_01x03
J2
1
SRD-05VDC-SL-C
K1
1
SW_Push
SW1
1
LL4148
D1
1
LED
D2
1
1UF/16V
1uf/16V
C1
2
100NF
100nf
C2, C3
4
10K
10k
R1, R2, R4, R5
1
1k
R3
1
470K
470k
R6

ESP8266-WiFiRelay-IndustrialIoT design files

The KiCad project lives in the ajvizganapathy-pixel/ESP8266-WiFiRelay-IndustrialIoT repository on GitHub; these links point at the commit this page was built from.

ESP8266-WiFiRelay-IndustrialIoT: common questions

What microcontroller does the ESP8266-WiFiRelay-IndustrialIoT use?

The ESP8266-WiFiRelay-IndustrialIoT is built around the ESP8266-01_ESP-01, from the ESP8266 family.

How big is the ESP8266-WiFiRelay-IndustrialIoT PCB?

The ESP8266-WiFiRelay-IndustrialIoT measures 40 × 30 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ESP8266-WiFiRelay-IndustrialIoT?

19 components, from 15 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 ESP8266-WiFiRelay-IndustrialIoT design files?

From the ajvizganapathy-pixel/ESP8266-WiFiRelay-IndustrialIoT 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 ESP8266-WiFiRelay-IndustrialIoT design in my own project?

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

Can I test firmware for the ESP8266-WiFiRelay-IndustrialIoT without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.

Similar boards