Technical posts on IoT, wireless protocols, PCB design, firmware, and building Ameza.https://yldzmuhammed.comen-ushttps://yldzmuhammed.com/writing/lorawan-how-it-workshttps://yldzmuhammed.com/writing/lorawan-how-it-worksLoRaWAN is not just a radio protocol. It is a full network architecture with device classes, join procedures, and tradeoffs that only become visible when you deploy it in the real world.Wed, 08 Apr 2026 00:00:00 GMTLoRaWANhttps://yldzmuhammed.com/writing/smart-water-networkhttps://yldzmuhammed.com/writing/smart-water-networkIn 2016, during a turbulent time in Turkey, I joined a startup building a smart city from the ground up. No proven network server existed. So I wrote one.Fri, 03 Apr 2026 00:00:00 GMTProject Storyhttps://yldzmuhammed.com/writing/reading-protocol-specshttps://yldzmuhammed.com/writing/reading-protocol-specsMost protocol documentation is written by engineers for engineers. Here is the order of questions to answer before you go anywhere near the physical layer.Tue, 31 Mar 2026 00:00:00 GMTIoT Fundamentalshttps://yldzmuhammed.com/writing/technical-ownershiphttps://yldzmuhammed.com/writing/technical-ownershipBuilding a hardware product without an electronics background is not the problem. Here is what good technical leadership actually looks like.Fri, 27 Mar 2026 00:00:00 GMTOpinionhttps://yldzmuhammed.com/writing/production-ready-iothttps://yldzmuhammed.com/writing/production-ready-iotGetting a prototype to work on your desk is the easy part. Here is what actually separates a prototype from a product that survives in the field.Tue, 24 Mar 2026 00:00:00 GMTIoT Fundamentalshttps://yldzmuhammed.com/writing/why-hardware-startups-failhttps://yldzmuhammed.com/writing/why-hardware-startups-failIt is not bad engineering that kills hardware startups. It is starting to build before you know what you are building.Fri, 20 Mar 2026 00:00:00 GMTOpinionhttps://yldzmuhammed.com/writing/what-is-iothttps://yldzmuhammed.com/writing/what-is-iotMost people treat wireless communication like a casual conversation. But distance costs energy, bandwidth is shared, and structure is what makes any of it reliable.Wed, 18 Mar 2026 00:00:00 GMTIoT Fundamentals