// EST. 2024 โ€” CALGARY, AB

Smart Hardware
for Home &
Industry

Modular, DIN-rail mounted PLC cards and smart devices built for light industrial and home automation. Every card standalone-capable. All open toolchain.

๐Ÿง 

Main CPU Card

ESP32-S3 ยท USB-C ยท RTC ยท SD Card

Core
๐Ÿ“ก

Digital I/O Card

8ch ยท Opto-isolated ยท 5/12/24V

I/O
๐ŸŒก๏ธ

Thermocouple Card

MAX31856 ยท K/J/T types ยท Isolated

Sensor
๐Ÿ”Œ

Relay Output Card

4ch ยท 10A@250VAC ยท NO/NC/COM

Output
๐Ÿ 

Wireless Thermostat

BME280 ยท Alexa ยท Web server ยท 3 relays

New
// Product Lineup

Modular PLC Card Family

Every card shares the same PCB footprint, DIN rail mounting, USB-C front access, and ESP32-S3 processor โ€” mix and match to build exactly the system you need.

๐Ÿง 

Main CPU Card

ESP32-S3, RTC, SD card slot, USB-C uplink to PC. The backplane master.

ESP32-S3
โšก

Digital Output Card

Opto-isolated MOSFET outputs. Sourcing & sinking. TTL/CMOS compatible.

Industrial
๐Ÿ”

Digital Input Card

Opto-isolated inputs, jumper-selectable 5/12/24VDC. Wet & dry contact.

Multi-voltage
๐Ÿ”Œ

Relay Output โ€” Type A

4-channel. SRD-05VDC. 10A@250VAC. NO/NC/Common. Heavy duty loads.

10A Power
๐Ÿ”‚

Relay Output โ€” Type B

8-channel signal relays. Omron G5V-2. Ideal for home automation.

8 Channel
๐ŸŒก๏ธ

Thermocouple Input

MAX31856. K, J, T type support. Cold junction compensation. Isolated.

MAX31856
๐Ÿ“Š

RTD Input Card

MAX31865. PT100 support. 2, 3 & 4-wire configurations. Isolated.

PT100
ใ€ฐ๏ธ

Analog Input (4โ€“20mA)

ADS1115 16-bit ADC. Differential inputs. 0โ€“10V via voltage divider.

16-bit
๐Ÿ“ค

Analog Output (4โ€“20mA)

MCP4725 DAC + XTR116 current loop driver. True 4โ€“20mA output.

XTR116
๐Ÿ”—

Communication Card

RS-232 (MAX3232), RS-485 (MAX485), Ethernet (W5500), Wi-Fi native.

Multi-protocol
๐Ÿ“ถ

Wireless Cards

ESP-NOW peer-to-peer or NRF24L01+ long-range point-to-point wireless.

Wireless
โš™๏ธ

Stepper / Servo Driver

TMC2209 driver IC. Quiet, efficient motor control for positioning.

TMC2209
// Featured Product

Wireless Smart Thermostat

A fully integrated smart thermostat for home and garage HVAC control. Voice-controlled, web-connected, and relay-driven.

21ยฐC
CURRENT TEMPERATURE
โ— Heating   โ—‹ Fan   โ—‹ Cooling
Humidity: 45% ยท Set: 22ยฐC ยท Wiโ€‘Fi โœ“
"Alexa, set garage to 22 degrees"
๐ŸŒก๏ธ

BME280 Sensor

Precision temperature, humidity, and barometric pressure measurement in a single integrated sensor.

๐ŸŽ™๏ธ

Alexa Voice Control

Full Amazon Alexa integration via ESP32-S3 Wiโ€‘Fi. Set temperature, check status, control modes by voice.

๐ŸŒ

Built-in Web Server

Local web interface accessible from any browser on your network. No cloud subscription required.

๐Ÿ”Œ

3-Relay HVAC Control

Dedicated relays for heat request, fan on/off, and air conditioning โ€” full HVAC system control.

๐Ÿ“ฑ

Standalone Operation

TFT display with touch control. Operates fully independently โ€” no PC or hub required.

// Why HomeCircuitSolutions

Built Different

We build hardware that works the way you think โ€” modular, open, and ready to expand.

01

Truly Modular

Every card is the same size, same connector, same processor. Add what you need. Skip what you don't. Expand later.

02

Standalone + System

Each card operates independently with its own display. Connect them all for a full PLC system. Your choice, always.

03

Open Toolchain

KiCad schematics, Fusion 360 enclosures, GitHub version control. No proprietary lock-in. Ever.

04

Industrial Grade

Opto-isolated I/O, ISO1540 bus hardening, conformal coating, IP56 enclosures. Built for real environments.

05

DIN Rail Native

Designed for the rail from day one. Meanwell certified PSU, pluggable terminals, removable mounts for standalone use.

06

Consumer Pricing

Industrial functionality at consumer-grade cost. We design for production volume from the very first prototype.

// Get in Touch

Let's Build Something

HomeCircuitSolutions

Calgary, Alberta, Canada

๐Ÿ“ง philip@homecircuitsolutions.com

Whether you need a single card for a home automation project or a full industrial PLC system, we'd love to hear about your application.