HardLabs

Maxpilot

zefr0g·maxpilot·hardware/kicad/MaxPilot.kicad_pcb

Maxpilot PCB layout, top view — open source ESP8266 board by zefr0g

About the Maxpilot PCB

Maxpilot is an open source ESP8266 PCB design by zefr0g, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 99.1 × 38.1 mm, with 12 components from 9 distinct parts.

Its main chip is the WeMos_D1_mini, from the ESP8266 family. Other key parts include the MOC3041M. By type, the board carries 3 ICs, 2 diodes, 2 resistors, 1 connector, 1 fuse and 1 capacitor.

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

From the project

Open-hardware WiFi fil pilote controller for French electric radiators — ESPHome + Home Assistant, ~12 € per board

MaxPilot est une carte open-source qui se branche sur le fil pilote de vos radiateurs électriques et commande leur mode (Confort, Éco, Hors-gel, Arrêt) depuis Home Assistant, via ESPHome. Plus besoin de programmateur mural : la carte remplace le thermostat central, sans cloud ni abonnement. Elle est conçue autour de composants peu coûteux et faciles à trouver (WeMos D1 Mini, optocoupleurs, alimentation HLK-PM01) et se soude entièrement en traversant : accessible à tout amateur d'électronique.

Maxpilot, from the project README
From the project README

Main components on the Maxpilot

WeMos_D1_miniMOC3041M

Maxpilot bill of materials (BOM)

12 components, 9 distinct parts.

QtyPartRefs
1
WeMos_D1_mini
U1
2
MOC3041M
U2, U3
1
Conn_01x03
J1
1
1A
F1
1
HLK-PM01
PS1
1
Varistor
RV1
2
1N4007
D1, D2
1
22µF
C1
2
570
R1, R2

Maxpilot design files

The KiCad project lives in the zefr0g/maxpilot repository on GitHub; these links point at the commit this page was built from.

Maxpilot: common questions

What microcontroller does the Maxpilot use?

The Maxpilot is built around the WeMos_D1_mini, from the ESP8266 family.

How big is the Maxpilot PCB?

The Maxpilot measures 99.1 × 38.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Maxpilot?

12 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Maxpilot design files?

From the zefr0g/maxpilot repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Maxpilot design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which zefr0g chose for the repository.

Can I test firmware for the Maxpilot 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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