Case studies
Work we have delivered
Engagements carried from schematic through firmware to a unit that could be built. Client names are withheld; the engineering is described as it was done.

Selected work
Different problems, one way of working
Mains-powered industrial acquisition, battery-scale wireless, precision signal generation, on-device sensor fusion. Each carried end to end by one team.
- 01Railway infrastructure
Turn-key IoT platform for trackside monitoring and data logging
Eight-channel analog acquisition, optically isolated safety monitoring and a custom LoRa-to-Linux bridge on a single 110V AC board.
- LoRa P2P
- WLR089U0-I/RM
- 4-20mA
- Optical isolation
- 110V AC
- 02Railway infrastructure
Connected LED signal marker board for railway applications
Redundant LED strings that degrade rather than go dark, with carrier-independent LTE-M/NB-IoT, GNSS tracking and over-the-air updates on a battery budget.
- STM32L431
- LTE-M / NB-IoT
- eSIM multi-operator
- GNSS
- OTA updates
- 03Signalling & test equipment
Turn-key design of a precision 56 kHz loop signal generator
Three signalling frequencies held to ±0.01% with sub-5ms switching, dual waveform output, and a 50Ω output stage driven from 24V DC.
- AD9833 DDS
- STM32L431
- ±0.01% accuracy
- < 5 ms switching
- PWM & analog gain
- 04Wearables & connected devices
Embedded IoT platform for sensor fusion and haptic alerting
Motion and load data fused on-device so feedback happens in milliseconds, not after a cloud round trip — on a wearable-scale power budget.
- Nordic nRF52833
- Zephyr RTOS
- nRF Connect SDK
- BLE 5 / GATT
- Load cell + INA
Domains
Where this work has been deployed
Industries with delivered projects behind them, rather than a longer list of aspirations.
Railway infrastructure
Trackside monitoring, signalling equipment and work-zone safety hardware built for vibration, temperature and unattended operation.
Industrial monitoring
Multi-channel analog acquisition, isolated field inputs and long-range data logging on mains-powered plant equipment.
Signalling & test equipment
Precision frequency synthesis and instrument-grade output stages where accuracy and switching timing carry the information.
Wearables & connected devices
Battery-scale platforms fusing multiple sensor modalities with on-device decisions and continuous wireless links.
Your problem is probably not on this list
These are the ones we can talk about. Describe what you are building and we will tell you honestly whether it is work we have done before, or work we would be learning on.