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ESPHome serial controller

Renbrant·ESPHome_serial_controller·Hardware/V1.0/ESP32 serial controller.net

ESPHome serial controller

About the ESPHome serial controller PCB

ESPHome serial controller is an open source ESP32 PCB design by Renbrant, published on GitHub under the MIT license. It is a board, with 26 components from 16 distinct parts.

Its main chip is the XIAO-ESP32-C6-DIP, from the ESP32 family. Other key parts include the MAX3232. By type, the board carries 9 capacitors, 6 diodes, 4 connectors, 4 resistors, 2 ICs and 1 fuse.

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

From the project

An open-source ESP32-C6 based solution designed to integrate legacy RS232 serial devices into Home Assistant via ESPHome.

An open-source ESP32-C6 based solution designed to integrate legacy RS232 serial devices into Home Assistant via ESPHome.

Bidirectional Communication: Unlike IR, receive real-time status feedback (Power, Lamp Hours, Input Source) from your hardware. Modern Platform: Powered by the ESP32-C6, ensuring low power consumption and future-proofing for modern protocols. Native ESPHome: "Plug & Play" integration with Home Assistant using simple YAML configurations. Dedicated Hardware: Integrated MAX3232 transceiver with power filtering and ESD protection for reliable industrial-grade signals.

Main components on the ESPHome serial controller

MAX3232XIAO-ESP32-C6-DIP

ESPHome serial controller bill of materials (BOM)

26 components, 16 distinct parts.

QtyPartRefs
1
MAX3232
U2
1
XIAO-ESP32-C6-DIP
U4
1
DE9_female
J1
1
Conn_01x02
J3
2
PINHD_1x4_Male
J4, J5
1
Polyfuse
F1
2
Green
D1, D4
1
SM712_SOT23
D2
1
SS14
D3
1
Red
D5
1
blue
D6
5
0.1uF
C3, C4, C5, C6, C7
2
22uF
C8, C9
1
1uF
C10
1
100nF
C11
4
2.2k
R1, R2, R3, R4

ESPHome serial controller design files

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

ESPHome serial controller: common questions

What microcontroller does the ESPHome serial controller use?

The ESPHome serial controller is built around the XIAO-ESP32-C6-DIP, from the ESP32 family.

How many components are on the ESPHome serial controller?

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

Where can I download the ESPHome serial controller design files?

From the Renbrant/ESPHome_serial_controller repository on GitHub, which has a netlist; the links under Design files point to each one.

Can I use the ESPHome serial controller design in my own project?

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

Can I test firmware for the ESPHome serial controller 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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