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Mhi ac ctrl esp32

hberntsen·mhi-ac-ctrl-esp32·kicad/MHI-AC-CTRL/MHI-AC-CTRL.kicad_pcb

Mhi ac ctrl esp32 PCB layout, top view — open source board by hberntsen

About the Mhi ac ctrl esp32 PCB

Mhi ac ctrl esp32 is an open source PCB design by hberntsen, published on GitHub under the MIT license. It is a 2-layer board measuring 51.6 × 26.8 mm, with 8 components from 7 distinct parts.

Other key parts include the TSR_1-2450, ESP-C3-32S-Kit and LEVEL-SHIFTER-4CH. By type, the board carries 3 ICs, 3 capacitors, 1 connector and 1 resistor.

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

From the project

Control MHI Airconditioning locally using your own ESP32 series chip!

This code is inspired by @absalom-muc's MHI-AC-Ctrl, @mriksman's esp32 homekit implementation and @ginkage's MHI-AC-Ctrl-ESPHome. Compared to the popular implementation of @absalom-muc and @ginkage, this project uses the hardware SPI peripheral instead of a software based implementation. That improves reliability and frees up CPU resources for other tasks.

Note that it is also possible to re-use custom PCBs designed for the ESP8266 with a supported ESP32 series chip. For example with the Lilygo T-OI Plus, see this discussion.

Main components on the Mhi ac ctrl esp32

TSR_1-2450ESP-C3-32S-KitLEVEL-SHIFTER-4CH

Mhi ac ctrl esp32 bill of materials (BOM)

8 components, 7 distinct parts.

QtyPartRefs
1
TSR_1-2450
U1
1
ESP-C3-32S-Kit
U2
1
LEVEL-SHIFTER-4CH
U3
1
Conn_01x05
J1
1
22μF/25V
C1
2
100nF
C2, C3
1
12K
R1

Mhi ac ctrl esp32 design files

The KiCad project lives in the hberntsen/mhi-ac-ctrl-esp32 repository on GitHub; these links point at the commit this page was built from.

Mhi ac ctrl esp32: common questions

How big is the Mhi ac ctrl esp32 PCB?

The Mhi ac ctrl esp32 measures 51.6 × 26.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mhi ac ctrl esp32?

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

Where can I download the Mhi ac ctrl esp32 design files?

From the hberntsen/mhi-ac-ctrl-esp32 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mhi ac ctrl esp32 design in my own project?

Yes, under the terms of its MIT license, which hberntsen chose for the repository.

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