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Esp daikin

gregdavill·daikin-esp·pcb/esp-daikin/kicad-src/esp-daikin-r1p1.kicad_pcb

Esp daikin PCB layout, top view — open source ESP32 board by gregdavill
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About the Esp daikin PCB

Esp daikin is an open source ESP32 PCB design by gregdavill, published on GitHub. It is a 2-layer board measuring 28.6 × 30 mm, with 20 components from 16 distinct parts.

Its main chip is the ESP32-C3-MINI-1-H4, from the ESP32 family. Other key parts include the 74LVC2G14DW-7. By type, the board carries 7 resistors, 6 capacitors, 2 ICs, 2 connectors, 2 diodes and 1 inductor.

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

From the project

ESP32-C3 hardware to connect to a Daikin ducted A/C system. enabling WiFi control in Home Assistant.

Wireless A/C Controller, an ESP32-C3 based hardware module to connect to a Daikin ducted A/C system and enable WiFi control in Home Assistant.

The PCB repo contains a few different designs: - saphire-captain : Initial ESP32 + XL1192 board. Power extraction from the bus and transmission didn't work well. - hb-bob-r0.1 : Breakout board designed for the MAX22088 homebus transceiver. This board enabled rx/tx and power from the P1P2 bus. - esp-daikin-r1.0 : Basic ESP32-C3 board with DCDC, dosigned to attach directly to the hb-bob board.

Main components on the Esp daikin

ESP32-C3-MINI-1-H474LVC2G14DW-7

Esp daikin bill of materials (BOM)

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

QtyPartRefs
1
ESP32-C3-MINI-1-H4
ESP32-C3-MINI-1
U1
1
74LVC2G14DW-7
AOZ1280CI
U3
1
PH_01X05
PH_01x05
J1
1
PinHeader 1x02
J2
1
XL-1005UOC
ORANGE
D2
1
C165980
CUS10S30,H3F
D3
1
ANR4020T4R7M
4.7uF
L1
2
CC0603MRX5R8BB106
10uF
C1, C3
2
CC0402KRX5R8BB224
220nF
C2, C5
1
CC0402KRX7R9BB333
33nF
C6
1
CC0603MRX5R8BB226
22uF
C7
2
RC0402FR-075K1L
5.1K
R1, R3
1
RC0402FR-0725K5L
15.8k
R4
1
RC0402FR-07115KL
49.9k
R7
2
RC0402FR-072K2L
2.2K
R12, R13
1
RC0402FR-07470RL
470R
R14

Esp daikin design files

The KiCad project lives in the gregdavill/daikin-esp repository on GitHub; these links point at the commit this page was built from.

Esp daikin: common questions

What microcontroller does the Esp daikin use?

The Esp daikin is built around the ESP32-C3-MINI-1-H4, from the ESP32 family.

How big is the Esp daikin PCB?

The Esp daikin measures 28.6 × 30 mm, has 2 copper layers and is 0.6 mm thick.

How many components are on the Esp daikin?

20 components, from 16 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 Esp daikin design files?

From the gregdavill/daikin-esp 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 Esp daikin design in my own project?

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

Can I test firmware for the Esp daikin without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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