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Esphome lg controller

JanM321·esphome-lg-controller·hardware-FeatherS3/lg_hvac_esp32.kicad_pcb

Esphome lg controller PCB layout, top view — open source board by JanM321
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About the Esphome lg controller PCB

Esphome lg controller is an open source PCB design by JanM321, published on GitHub under the 0BSD license. It is a 4-layer board measuring 22.9 × 50.8 mm, with 16 components from 14 distinct parts.

Other key parts include the TPS82130 and TJA1027. By type, the board carries 5 resistors, 4 capacitors, 3 connectors, 2 ICs and 2 diodes.

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

From the project

Wired controller for LG HVAC units using ESPHome and ESP32

This has some advantages compared to the LG ThinQ integration: Can override the unit's room temperature thermistor with a Home Assistant temperature sensor. Does not depend on LG's ThinQ cloud service. Supports units without a Wifi module. No annoying sounds from the AC unit when changing settings through the controller. * More settings and information available (although some settings like display light on/off are available in ThinQ but aren't passed to the wired controller).

Esphome lg controller, from the project README
From the project README

Main components on the Esphome lg controller

TPS82130TJA1027

Esphome lg controller bill of materials (BOM)

16 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPS82130
U1
1
TJA1027
U2
1
JST_XH_S3B-XH-A-1_01X03
JST_XH_S3B-XH-A-1_01x03
J1
1
CONN_01X16
Conn_01x16
J2
1
CONN_01X12
Conn_01x12
J3
2
1N4148WS
D1, D2
1
10UF
10uF
C1
1
3.3NF
3.3nF
C2
1
C_0805_2012METRIC
C_0805_2012Metric
C3
1
220PF
220pF
C5
1
330K
330k
R1
2
100K
100k
R2, R3
1
4.7K
4.7k
R4
1
1k
R5

Esphome lg controller design files

The KiCad project lives in the JanM321/esphome-lg-controller repository on GitHub; these links point at the commit this page was built from.

Esphome lg controller: common questions

How big is the Esphome lg controller PCB?

The Esphome lg controller measures 22.9 × 50.8 mm, has 4 copper layers and is 4.69 mm thick.

How many components are on the Esphome lg controller?

16 components, from 14 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 Esphome lg controller design files?

From the JanM321/esphome-lg-controller 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 Esphome lg controller design in my own project?

Yes, under the terms of its 0BSD license, which JanM321 chose for the repository.

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