Embedded Engineering

Case studies from our embedded engineering work.

Populated analog and digital I/O board with RS485, screw-terminal sensor inputs, and EVC/modem supply connectors

ATEX-Certified Analog I/O Controller for Gas Flow Telemetry

Assembled RTU circuit board with a Renesas Synergy MCU, LTE modem, and Ethernet/RS485 connectors

Gas Telemetry Remote Terminal Unit (RTU)

A Holt HI-6131 MIL-STD-1553 evaluation board wired over dual-redundant Bus A/Bus B ribbon cables to a CDU control display unit and a dual-frequency radio control panel

Implementing a MIL-STD-1553B bus link for a navigation trainer's control and radio panels

Two avionics radio control units: a CDU-style unit with a NAV/ADF/TACAN/HF/VHF/UHF menu and full keypad, and a compact control head with dual tuning knobs showing an active and standby frequency

Building a shared firmware platform for a family of aircraft radio control units

The traffic controller carrier board populated with its SOM, Ethernet jack, DB connector, USB-C port, wireless module, SD card slot, and gold edge-connector pins for the cabinet interface

Designing a SOM-based traffic signal controller board bridging legacy cabinet interfaces to modern connectivity

Two exploded-view renders of the pedestrian crossing button hardware, showing the red vandal-resistant dome button assembly lifted above its populated circuit board with header pins and connectors exposed

Designing a wireless pedestrian crossing button that meshes with its intersection

The relay controller's populated circuit board next to its assembled enclosure, showing the relay, coin-cell-backed RTC, SD card slot, USB-C port, display, and switched power outlet

Building an automatic prayer-time relay controller with a resilient RTC-driven scheduler

The heat pump's populated sensor/controller board next to its touchscreen display, showing live freon, water, and boiler temperatures, a flow warning, power draw, and circulation pump status

Building a two-board BLE heat pump display with field-calibrated power metering

The CO detector's populated circuit board next to its assembled enclosure, showing the color display reading battery level, temperature, humidity, and a 0 CO ppm reading

Building the firmware for a battery-powered CO detector with a standards-modeled alarm curve

The BLE remote's populated radio board, showing its wireless SoC, PCB antenna, and flex connector to the button assembly

Building a five-button BLE remote that controls media and phone calls on iOS and Android

The populated cellular modem replacement board, showing its cellular module, host MCU, and legacy serial and antenna connectors

Building a drop-in cellular replacement for a legacy field modem, wire for wire

Both sides of the cellular gas sensor's two populated circuit boards, showing the cellular module and SIM card slot, antenna, and a LiPo battery with its IMEI label

Building a cellular air-quality sensor that provisions and encrypts itself

Both sides of the smart lock's two populated circuit boards, showing the BLE radio and PCB antenna, motor connectors, a coin-cell-backed RTC, and the pairing button

Building an encrypted BLE and NFC smart lock with closed-loop position sensing

Three round seat-mounted touch panels, each showing a different multi-option menu: Shades/Lighting, Source/Bluetooth/Entertainment, and Read/Table/Call

Engineering synchronized per-seat touch control panels for a private jet cabin

Three round touchscreen medication reminders showing the home screen with the next scheduled dose, a dose alarm with Open, Close, and SOS buttons, and an adherence report with goal, punctuality, and average time deviation

Building a round-touchscreen medication reminder with captive-portal setup and adherence scoring

Ten populated RS-485 communication boards laid out in two rows, each showing its isolated transceiver, MCU, and header connectors

Designing an isolated RS-485 communication board to extend a client's platform onto the plant floor

The populated analog output board, showing its STM32C031C6T6 MCU, output header pins, and screw-terminal connector

Designing a 4-20mA analog output board to let a client's control system drive industrial actuators

The populated analog input board, showing its STM32C031C6T6 MCU, ADC, header pins, and screw-terminal connector

Designing a 4-20mA analog input board to bring gas sensor data onto a client's control system

Two fanned-out sets of flex cables, one with a black coverlay and one with an exposed gold-and-polyimide layer, each terminating in rows of gold-plated contact fingers

Designing a shielded flex cable for reliable signal integrity in a space-constrained assembly

A stack of EVC graphic overlay keypads, showing the display window, the five-way arrow and ENT navigation cluster, the ESC button, the round action button, and the flex-cable tail

Designing a rugged IP66 graphic overlay keypad for an outdoor gas-metering device

A rifle scope's mechanical assembly showing its adjustment turret, geared focus ring, and mounting rail interfaces

Custom Optical System Mechanical Design and 3D Modeling

Four fully assembled hardware products - a handheld sensor, a PTZ camera, a touchscreen sample-analysis device, and a rugged connector enclosure - laid out together

From 3D Concept to Production-Ready Products

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