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    • About
    • Services
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    • Sample Projects
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  • Services
  • Contact Us
  • Sample Projects

Roaming SIM Management App

LoRaWAN system troubleshooting

Roaming SIM Management App

DJF Technology conceived, designed and delivered a complex application to provide uniquely reliable 3G/4G connectivity. DJF's intimate knowledge of AT Commands and 3GPP standards were pivotal to the project's success.

Portable O2 Concentrator

LoRaWAN system troubleshooting

Roaming SIM Management App

DJF's CTO, David Evans provided consultancy on all elements of the cellular connectivity solution for an innovative portable O2 concentrator designed to improve the lives of COPD patients. Full video here:


https://www.youtube.com/watch?v=r_O3L0KpAcs

LoRaWAN system troubleshooting

LoRaWAN system troubleshooting

LoRaWAN system troubleshooting

DJF was appointed to provide on-site support for a UK IoT System Integrator for ongoing connectivity issues. Intimate knowledge of cellular module & LoRaWAN packet forwarding behaviour allowed DJF to implement improved configuration leading to higher reliability across the system.

Air Conditioning automation

LoRaWAN system troubleshooting

DJF accompanied staff from a well known BMS Company onsite to develop a remote connectivity solution for HVAC control panels installed in the field. The process was tried, tested and documented within a single working day.

Retail Security automation

"I have had the pleasure of working with David on several M2M and Connected Solutions projects. I was always impressed with his depth of technical knowledge which he was fully able to put in practical terms where it related to my projects. David was also able to see the bigger picture and help guide me beyond the immediate scope of the task at hand"

Global Product Manager, UK

4G Data Limiting App

DJF Technology conceived, designed and delivered an application that would provide realtime 3G/4G data usage monitoring & drop the connection instantaneously if data usage thresholds are breached. This software USP enabled a global router manufacturer to provide their customers with an invaluable 'failsafe' preventing "bill shock" for their customers.

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