Engineering reference
Pet products
Feeding, litter automation, sensing and connected pet devices.
Explore this directionPROJECTS · ENGINEERING REFERENCES · PCBA BUILDS
Projects & engineering references.
Find a starting point for your product, inspect project design work, or plan a PCBA build from existing files. Development and manufacturing have different inputs; choose the path that matches your stage.
Start with a brief or the files you have. Scope and acceptance criteria are agreed for your project.
Find your product direction.
These libraries explain architectures and engineering decisions. Select an application to review functions, risks and the information your project needs.
Engineering reference
Energy & power
Battery systems, charging, conversion and energy monitoring.
Explore this directionEngineering reference
Smart home
Appliance control, sensors, connectivity and compact electronics.
Explore this directionEngineering reference
Wellness & beauty
Motion control, user interfaces and light-based product electronics.
Explore this directionApplication requirements
Industrial control
Equipment control, industrial interfaces and manufacturing requirements.
Explore this directionEngineering reference
Automotive electronics
Vehicle-related board architectures and project-specific validation.
Explore this directionCustomer design work you can inspect.
Three customer projects with permission to publish design material. See the product integration work and the drawings available for review.
Customer project
High-power power bank
- Design focus
- Integrating the enclosure, cells, PCB, display and connectors in one compact product.
- Public evidence
- Internal layout and exploded assembly view.
Customer project
Ergonomic can opener
- Design focus
- Exterior surfaces, controls and housing split coordinated with mechanical assembly.
- Public evidence
- Top and side CAD development views.
Customer project
Automotive refrigerator
- Design focus
- Packaging the enclosure, frame, fans, thermal components and electronics as one assembly.
- Public evidence
- CAD and rendered system exploded views.
Published drawings document design and assembly work. Performance test results, production quantities and customer acceptance records are not included in this public material.
Follow a design into the circuit.
Three engineering designs connect product functions to board interfaces, power paths and control logic.
Engineering design
Portable espresso controller
3S battery charging, heater switching, pump drive and temperature / pressure feedback. Inspect the schematic and copper routing.
Explore the engineering
Engineering design
Camera-guided nail-lamp electronics
Vision-to-light mapping, independent LED channels, local timing and hardware gating. Inspect the circuit and control sequence.
Explore the engineering
Design case
Wireless irrigation controller
Four DC latching valve outputs, battery and solar power, gateway-connected LoRa, and rain-switch / pulse-flow interfaces.
Explore the designHeated-tank process control
Temperature, level, pressure and flow control, with complete accessory selections, wiring details and downloadable technical files.
TANK-CTRL-A02
Heated-tank process control
Temperature, level, pressure and flow control, with complete accessory selections, wiring details and downloadable technical files.
24 V DC2 × Pt1004 × 4–20 mAIsolated RS485
Explore the system ↗Dry-cabinet controller PCBA
Dual-probe measurement, dehumidifier control, door events and data export, with editable hardware, firmware and cabinet CAD.
CAB120 · DRY CABINET CONTROL
Dry-cabinet controller PCBA
ESP32-S3 · 2 × HMP7 · Humidity target ≤5% RH
Technical architecture & downloads ↗7-inch industrial equipment HMI PCBA
Equipment data, touch interaction and isolated communication, with schematics, firmware, 3D views and technical downloads.
Engineering design candidate · Physical validation pending
HMI700 · INDUSTRIAL HMI
7-inch industrial equipment HMI PCBA
7-inch 800×480 capacitive touch, 24V input, STM32F407, isolated RS485 and classic CAN.
Explore the HMI & downloads ↗Dual-pump water supply controller PCBA
A duty/standby controller for pump manufacturers, water-treatment equipment and cabinet integrators. Pressure and tank-level inputs coordinate one running pump and one standby pump, automatic alternation, fault handling and operating records.
PUMP-TANK-A01 · WATER CONTROL
Dual-pump water supply controller PCBA
24V · 2 × 4–20mA · RS485 · 200 × 150mm
Technical downloads ↗RFID smart pet feeder
Dual-band main board, independent tag reader, local control, editable KiCad, firmware and accessory qualification resources.
PF-RFID-REVH
RFID smart pet feeder
Dual-band main board, independent tag reader, local control, editable KiCad, firmware and accessory qualification resources.
ESP32-C5ST25R10011 harnessesSource downloads
Explore the feeder project ↗Motor & fan vibration / temperature monitoring
MVT-01 · vibration, Pt1000 temperature, trends and threshold alarms.
Engineering design candidate · Fabrication and field validation pending
RS485 + LoRaWAN
Wired and wireless architectures. Download all technical materials: KiCad, schematics, Gerber, firmware, software, BOM and DFM.
Explore the system & downloads ↗Commercial freezer monitoring
Two temperature probes, door and power detection, local alarms, offline records and Wi-Fi replay.
COLDGUARD · CG-WIFI-A01
Commercial freezer monitoring
Two temperature probes, door and power detection, local alarms, offline records and Wi-Fi replay.
2 × DS18B20Door + powerWi-FiOffline logging
Explore the system & downloads ↗Fresh-air quality controller
CO₂ demand control, temperature/humidity monitoring, isolated Modbus RS485 and two EC fan voltage-control channels.
AQCTRL-A01 · VENTILATION CONTROL
Fresh-air quality controller
CO₂ demand control, temperature/humidity monitoring, isolated Modbus RS485 and two EC fan voltage-control channels.
CO₂ + T/RH2 × 0–10 VModbus RS48518–30 V DC
Explore scenarios & technical details ↗Smart cabinet control
A shared control architecture for industrial dispensing, parcel lockers and retail cabinets.
SMART CABINET · PCBA + FIRMWARE + SOFTWARE
One platform. Three cabinet workflows.
A shared electronics and software architecture for industrial dispensing, parcel lockers and unattended retail. Bring access control, door feedback and business records into one cabinet system.
24 V external supply8 lock channelsDoor + latch feedback
Explore smart cabinet developmentElectronic-paper material workflow
Software and target builds verified. Physical prototype and site acceptance pending.
V0.3 · ENGINEERING TRIAL
Electronic-paper material tags
Warehouse picking and lineside replenishment with a local workbench, USB/BLE firmware and downloadable engineering files.
Explore the solution and files ↗INDUSTRIAL IOT · MSC EVT1
Machine Status Collector PCBA
24 V inputs, local counts and network records — with the circuit, firmware, installation accessories and engineering budget available for review.
Engineering review candidate · FABRICATION HOLD
Plan a build from your design files.
Compare six representative board profiles. Photos and planning ranges help define an RFQ; your released files determine the actual construction, quantity and test scope.
Industrial control
Instrumentation Main Control PCBA
Dense processor board comparable to monitoring and laboratory instruments; regulated use requires customer-specific validation.
View planning details
Industrial control
Embedded Control Module in Carrier
Compact controller mounted in a routed carrier, comparable to rugged embedded and mobility-control modules.
View planning details
IoT & connectivity
Wireless IoT Gateway Module
Wireless module PCBA with RF integration, antenna keep-out control, power management, and production test access.
View planning details
Industrial control
Industrial PLC Controller Board
Connector-rich mixed SMT/THT board with programming access and functional-test planning.
View planning details
Energy & power
Power Conversion Control PCBA
Power electronics board with inductors, high-current regions, and thermal inspection considerations.
View planning details
IoT & connectivity
Industrial Communication Main Board
Gateway-style communication PCBA with Ethernet interfaces, power regions, and EMC review needs.
View planning details
ASSEMBLY FORMAT
Need the board inside a finished assembly?
Box build adds enclosure fit, harness routing, agreed system checks, labeling and packing to the board scope. It can apply to any product direction.
Review box-build requirementsDefine the next step for your stage.
A new product needs design and sample evidence. An existing design starts with the released files and manufacturing review.
Define the scope
Confirm the application, current stage, constraints, inputs and acceptance criteria.
Design or review
Develop the agreed electronics and mechanical interfaces, or review your existing board files and BOM.
Build and verify
Use prototypes or first articles to check the agreed functions, assembly and test limits.
Prepare the handoff
Agree revisions, sourcing, programming, build records and release conditions before delivery.
Tell us where your project stands.
For development, share the intended function and constraints. For manufacturing, share the application, quantity and available board files. Add a target date if you have one.
Files are optional to start. We review the available inputs and clarify the scope before quotation.
Request an NDA before sharing confidential files8-zone leak detection controller PCBA
A generic 24V monitoring platform for building integrators, equipment makers and facilities teams: eight zones, local alarms, alarm/health contacts and isolated RS485, with editable engineering files.
LWC8-A02 · ENGINEERING CANDIDATE
8-zone leak detection controller PCBA
Engineering candidate — not built · 24V · RS485
Technical files ↗Water-treatment dosing controller PCBA
Flow-pulse dosing with isolated external-pump interfaces and low-level interlocks. Engineering candidate with complete factory-review downloads.
WTD-CTRL-A01 · FLOW DOSING
Water-treatment dosing controller PCBA
18–30V DC · 2 external pumps · R35 factory handoff · Physical acceptance pending
Technical downloads ↗