Application Products — Custom PCBA for Smart & Connected Devices
HS-PCBA develops custom application PCBA platforms for smart, connected and IoT products—from GNSS pet trackers and compasses to Raspberry Pi expansion boards, ultrasonic waste-management controllers, ESP32 appliance modules and HVAC central temperature controllers. Each board is engineered and assembled to your product requirements, from prototype to mass production.
Talk to an engineerApplication PCBA Platforms
GNSS Pet Tracker PCBA
- u-blox GNSS (MAX-M10), meter-level position
- 4G Cat.1 cellular uplink + BLE
- Geofence alerts, track history replay
- Magnetic collar button, status LEDs
- USB Type-C charging
GNSS Compass PCBA
- u-blox GNSS (MAX-M10) positioning
- Speed and heading readout
- ESP32 WiFi + BLE cloud upload
- 2-key control, status LED
- USB Type-C charging
Raspberry Pi Expansion System PCBA
- Direct Raspberry Pi 4 carrier, plug-and-play
- 8× PT1000 temperature channels (MAX31865)
- 8 relay outputs, 1:1 or free mapping
- Closed-loop temperature control
- Isolated power, per-channel status LEDs
Ultrasonic Waste Management System PCBA
- Ultrasonic fill-level detection
- Filtered data, no false alarms
- 2.4G WiFi cloud upload
- Map dashboard: status & history
- Full-bin alerts & route dispatch
LCD Knob & Press PCBA
- 2.4-inch round color LCD: menus, values, status
- Rotary knob select, center-key confirm
- Dual UART links to two main boards
- Display terminal — logic stays external
- On-board regulation, stable screen power
ESP32 Smart IoT Module PCBA
- Cloud top-up relay for shared washers
- Reads start request, state & fault signals
- Balance loop: allow / deny / recharge
- Uploads device ID, status & user tag
- Status LEDs, regulated & protected power
ESP32 Smart Fireplace WiFi PCBA
- ESP32 wireless remote with pair status
- Log / flame / top lamps, 5 levels each
- Multi-color flame cycle, 3-speed motor
- Heat 16–31 °C, two power levels
- Numeric display, on/off state memory
HVAC Central Temperature Controller PCBA — Touch
- Touch panel: power, mode, fan, temp
- Cool / heat / vent, 4-speed fan
- MOD hold: timed off, then timed on
- Key lock & continuous ±1 °C adjust
- Dual-board display + power, 110/220V selectable
HVAC Central Temperature Controller PCBA — Integrated
- Medium 129×91.6×36 mm, 73.4×45.3 mm LCD
- 110/220V selectable, white backlight, 4 keys
- 2×AA backup battery, low-batt display
- 5 system types incl. heat-pump OB
- CPH 1–12 / 1–6, compressor 0–5 min guard
- Unmanned temp 0.5 °C fine-set, 86-box
- Small 113×85×30 mm, 47×37 mm LCD
- 24VAC input, white backlight, 4 keys
- 2×AA backup battery, low-batt display
- 5 system types incl. heat-pump OB
- CPH 1–12 / 1–6, compressor 0–5 min guard
- Unmanned temp 0.5 °C fine-set
HVAC Central Temperature Controller PCBA — Vertical Screen
- Medium 126.6×102.8×16.4 mm, 87.7×64 mm LCD
- Vertical panel, blue backlight, 110/220V selectable
- Cool / heat / vent, 4-speed fan
- Unmanned: 18 °C heat / 26 °C cool
- 3s hold timer: on & off scheduling
- Factory-coded settings, antifreeze 6→8 °C
- Small 120×95×15 mm, 83×56.3 mm LCD
- Vertical panel, blue backlight, 220VAC input / 110VAC selectable
- Cool / heat / vent, 4-speed fan
- Unmanned: 18 °C heat / 26 °C cool
- 3s hold timer: on & off scheduling
- Factory-coded settings, antifreeze 6→8 °C
HVAC Central Temperature Controller PCBA — Horizontal Screen
- Medium 126.6×102.8×16.4 mm, 87.7×64 mm LCD
- Hotel AC panel, 110/220V selectable, 86-box
- Green-backlit LCD, 5-key operation
- Cool / heat / vent, 4-speed fan
- Unmanned: 18 °C heat / 26 °C cool
- Factory-coded settings, antifreeze 6→8 °C
- Small 120×95×15 mm, 81×58.2 mm LCD
- Hotel AC panel, 220VAC input / 110VAC selectable
- Green-backlit LCD, 5-key operation
- Cool / heat / vent, 4-speed fan
- Unmanned: 18 °C heat / 26 °C cool
- Factory-coded settings, antifreeze 6→8 °C
- Small 120×95×15 mm, 81×58.2 mm LCD
- Hotel AC panel, 24VAC input
- Green-backlit LCD, 5-key operation
- Cool / heat / vent, 4-speed fan
- Unmanned: 18 °C heat / 26 °C cool
- Factory-coded settings, antifreeze 6→8 °C
Hotel AC Thermostat PCBA
- Large 95×77 mm LCD touchscreen, 4 touch keys
- WiFi phone-app control — remote temperature, schedule & status
- Programmable weekly schedule: same every day, weekend or per-day custom
- 3-stage heating / 2-stage cooling for heat-pump & conventional systems
- Adaptive recovery + energy-saving schedule
Smart Thermostat Air Conditioner Protocol Adapter PCBA / MINI6
- 100-240VAC in, AC 24V output, 0.8W idle
- Tri-color LED beside USB: red, green, blue
- RJ45 / CAT6 link to smart thermostat
- Hidden IR transmitter for legacy thermostats
- Compressor guard: fan first, 4-min max delay
- 100-240VAC in, AC 24V output, 0.8W idle
- Tri-color LED beside RJ45: red, green, blue
- QFP main controller with expanded I/O
- Hidden IR transmitter for legacy thermostats
- Compressor guard: fan first, 4-min max delay
Intelligent Thermostatic Controller Control Board PCBA / ID-PLUS
- 30A relay output, compressor start and stop
- Cooling control with natural defrost
- Also runs as simple ON/OFF heater thermostat
- Door, economy, pressure and HACCP inputs
- 4-key keypad, 7 status LEDs, C/F
- 3 relays: compressor, defrost, fan or AUX
- Room and evaporator dual temperature sensors
- Defrost cycle control, fan auto mode
- 2 digital inputs: door, pressure, HACCP
- 4-key keypad, 7 status LEDs, C/F
Round Touch Display PCBA
- 2.1-inch round TFT, 480x480 IPS touch
- Rotary encoder ring, press to confirm
- RGB ambient ring, speaker, mic and vibration
- 1GB SD card slot on board
- ESP32-S3 WiFi and BT 5, aluminum shell
Intelligent Central Control Board PCBA
- 1.47-inch touch screen: temp, humidity, time
- 2 physical keys, 2 relay light circuits
- Temp, light and PIR sensors on board
- IR transmit and receive for AC control
- Manual or auto mode, unattended control
Application PCBA — Frequently Asked Questions
What is application PCBA, and how is it different from standard board assembly?
Application PCBA is a complete board-level solution designed around a specific product — its buttons, display, sensors and connectivity — rather than a generic board. HS covers the full chain: DFM review, SMT/THT assembly, testing and NPI, delivering production-ready control boards that match your enclosure and user interface.
Can you customize one of these boards to our exact requirements?
Yes. Every platform on this page is engineered to specification. HS adjusts layout, button placement, display type, connectivity (Wi-Fi, Bluetooth, 4G/GNSS) and firmware features — from a single modification on an existing platform to a fully new design developed with you.
What files do we need to provide for a custom application board?
If you have an existing design: Gerber files, BOM and pick-and-place data are enough. If you start from a concept, only your requirements are needed — HS’s 35-person R&D team handles schematic capture, PCB layout and component selection in-house.
Do you support small prototype batches?
Yes. Projects can start with a small number of prototype sets to validate design and assembly before scaling to mass production. NRE, unit pricing and lead time are quoted per project after we review your requirements.
How do you ensure board quality?
Every board passes AOI inspection, ICT and functional testing (FCT) with a full test report. Assembly follows IPC J-STD-001 under an ISO 9001 quality system; the factory is also certified ISO 14001, ISO 45001 and IATF 16949.
Which industries do these application platforms serve?
These application PCBA platforms serve GNSS pet tracker and compass devices, Raspberry Pi expansion boards, ultrasonic waste-management systems, ESP32-connected washing machines and fireplaces, and HVAC central temperature controllers. The same design-to-manufacturing process can be adapted to other smart, connected and IoT products.
Need a custom application board?
From prototype to mass production, HS engineers, assembles and tests application PCBA to your specification — SMT/THT, NPI and full turnkey delivery.
