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Wemos mains dev

chof747·wemos-mains-dev

Wemos mains dev PCB layout, top view — open source ESP8266 board by chof747

About the Wemos mains dev PCB

Wemos mains dev is an open source ESP8266 PCB design by chof747, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 74.2 × 46.5 mm, with 10 components from 7 distinct parts.

Its main chip is the WeMos_D1_mini, from the ESP8266 family. Other key parts include the AC-05-3. By type, the board carries 4 connectors, 2 ICs, 2 capacitors and 2 resistors.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Memos D1 Mini mains powered board

This is a small board that can take a Wemos D1 Mini together with a 5V mini power supply to obtain a W-Lan microcontroller board with IO pins able to put e.g. in a switch box and power it directly from mains

- WeMos D1 Mini (or any other microcontroller board that has the same pin configuration) - A 600mA/5V (3W) power supply - A 2x12 pinheader providing all GPIO Pins of the D1 mini in a suitable configuration - Pull-Up Resistors for the SDA and SCL line - Jumper Pins to select if the pullups should be used or not - ByPass Capacitors for the 3V3 and GND lines in vicinity to the One-Wire and…

Main components on the Wemos mains dev

AC-05-3WeMos_D1_mini

Wemos mains dev bill of materials (BOM)

10 components, 7 distinct parts.

QtyPartRefs
1
AC-05-3
U1
1
WeMos_D1_mini
U2
1
Screw_Terminal_01x02
J1
1
Conn_02x12_Odd_Even
J2
2
SDA PU
J8, J9
2
1u
C1, C2
2
4k7
R1, R2

Wemos mains dev design files

The KiCad project lives in the chof747/wemos-mains-dev repository on GitHub; these links point at the commit this page was built from.

Wemos mains dev: common questions

What microcontroller does the Wemos mains dev use?

The Wemos mains dev is built around the WeMos_D1_mini, from the ESP8266 family.

How big is the Wemos mains dev PCB?

The Wemos mains dev measures 74.2 × 46.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Wemos mains dev?

10 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wemos mains dev design files?

From the chof747/wemos-mains-dev repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Wemos mains dev design in my own project?

Yes, under the terms of its CC0-1.0 license, which chof747 chose for the repository.

Can I test firmware for the Wemos mains dev 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.

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