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Velux controller

thorio·esphome-projects·velux-controller/pcb/velux-controller.kicad_pcb

Velux controller PCB layout, top view — open source ESP8266 board by thorio
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About the Velux controller PCB

Velux controller is an open source ESP8266 PCB design by thorio, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 69.9 × 69.9 mm, with 31 components from 16 distinct parts.

Its main chip is the ESP-12F, from the ESP8266 family. Other key parts include the AMS1117-3.3. By type, the board carries 14 resistors, 6 capacitors, 4 connectors, 3 transistors, 2 ICs and 2 switches.

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

From the project

collection of open home automation projects

This project modifies a Velux KLI 310 or similar remote control to integrate with home assistant. It replaces the back panel of the original remote, powers it from the wall, and can report state back to home assistant even if you press the physical buttons.

Installing it on the remote only requires removing the back and batteries, soldering 5 wires and plugging it into the control board. This process is nondestructive and reversible.

Velux controller, from the project README
From the project README

Main components on the Velux controller

ESP-12FAMS1117-3.3

Velux controller bill of materials (BOM)

31 components, 16 distinct parts.

QtyPartRefs
1
ESP-12F
U1
1
AMS1117-3.3
U2
3
MMBT3904
Q1, Q2, Q3
1
UART
J1
1
POWER
J2
1
SIGNAL
J3
1
PWR
J4
1
BOOT
SW1
1
RST
SW2
2
0.1μF
C1, C6
1
22μF
C2
1
470μF
C3
1
10μF
C4
1
10μF
C5
8
10K
R1, R2, R3, R4, R5, R7, R10, R13
6
1K
R6, R8, R9, R11, R12, R14

Velux controller design files

The KiCad project lives in the thorio/esphome-projects repository on GitHub; these links point at the commit this page was built from.

Velux controller: common questions

What microcontroller does the Velux controller use?

The Velux controller is built around the ESP-12F, from the ESP8266 family.

How big is the Velux controller PCB?

The Velux controller measures 69.9 × 69.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Velux controller?

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

Where can I download the Velux controller design files?

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

Can I use the Velux controller design in my own project?

Yes, under the terms of its GPL-3.0 license, which thorio chose for the repository.

Can I test firmware for the Velux controller 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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