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PCB-Designs

hmbusch·PCB-Designs·wemos-d1-mini-mainboard/wemos-d1-mini-mainboard.kicad_pcb

PCB-Designs layout, top view — open source ESP8266 board by hmbusch

About the PCB-Designs

PCB-Designs is an open source ESP8266 PCB design by hmbusch, published on GitHub. It is a 2-layer board measuring 94 × 68 mm, with 19 components from 16 distinct parts.

Its main chip is the WeMos_D1_mini, from the ESP8266 family. By type, the board carries 9 connectors, 3 diodes, 3 resistors, 2 ICs, 1 battery holder and 1 switch.

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

From the project

These are some PCBs I designed and my symbol and footprint libraries (KiCad, EAGLE)

URL: https://github.com/hmbusch/PCB-Designs

From time to time I sit down and design some circuitry that can be used for multiple purposes, a component if you will. The designs for these PCBs are stored in this project (or at least those I feel confident to share).

I started out developing a basic two button remote that I could use together with Home Assistant. I expected the design to go through various iterations as I try different functionality, so instead of designing several completely different iterations, I created a sort of universal motherboard. It breaks out almost all pins as…

Main components on the PCB-Designs

WeMos_D1_mini

PCB-Designs bill of materials (BOM)

19 components, 16 distinct parts.

QtyPartRefs
1
WeMos_D1_mini
U1
1
~
U2
1
Conn_I2C
J1
1
Conn_D0
J2
1
Conn_D7
J3
1
Conn_D8
J4
1
Conn_A0
J5
1
Conn_D4
J6
1
Conn_D3
J7
1
Conn_D5
J8
1
Conn_D6
J9
1
18650 LiPo
BT1
1
SW_LOAD
SW4
2
LED
D1, D2
1
Power LED
D3
3
120
R1, R2, R3

PCB-Designs design files

The KiCad project lives in the hmbusch/PCB-Designs repository on GitHub; these links point at the commit this page was built from.

PCB-Designs: common questions

What microcontroller does the PCB-Designs use?

The PCB-Designs is built around the WeMos_D1_mini, from the ESP8266 family.

How big is the PCB-Designs?

The PCB-Designs measures 94 × 68 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PCB-Designs?

19 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the PCB-Designs design files?

From the hmbusch/PCB-Designs repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the PCB-Designs design in my own project?

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

Can I test firmware for the PCB-Designs 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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