Notes on hardware, connectivity, platforms, and operators for teams running IoT projects
Find a term, a standard, or a how-it-works note
Grouped by subject, so a connectivity question and a device question are not in the same list
How to choose an IoT SIM, run it, and follow it from stock to retirement, including plastic cards and eSIM.
View moreAgents and distributors, buying at an agent price, sales credit, settlement share, and payment split.
View moreCross-border connectivity, roaming, and attaching through operators in more than one country.
View moreICMP topics: cross-border SIM control, eSIM, several operators, data pools, roaming policy, billing and payment, and compliance.
View moreMore than 100 DMP entries, from device monitoring and OTA to protocol access, alert handling, and the thing model.
View moreMore than 90 entries across IoT, manufacturing, agriculture and livestock, healthcare, energy, and logistics.
How IoT is used in 37 industries, including cities, charging posts, fire protection, and cold chain.
Hardware that sits in the device: the SIM, the PCBA, the communication module, and the sensors, and how each is designed in.
Platform software: architecture, data, device management, API design, and message queues.
Modules in the field: 4G, 5G, and NB-IoT, plus PLC, MES, SCADA, V2X, BMS, and smart metering.
View moreIoT service from the four major operators: the network, the commercial model, plan policy, and international roaming.
View moreMobile networks from 2G through 5G, and how VPDN and APN are used.
Articles and notes added most recently
Charging sites run on IoT: V2G, PV-plus-storage-plus-charging, and ultra-fast charging
March 2026Safe charging for e-bikes: several protection layers, and remote operations over IoT
March 2026EV charging sites on IoT: orderly charging and day-to-day operations
March 2026Fire protection from smoke detection through the emergency response that follows
March 2026Temperature watched for the whole cold-chain trip, for fresh food and for medicine
March 2026AI video and IoT sensors together, so the site reacts before someone walks the fence
March 2026Digital operations for PV, wind, and storage, in service of the dual-carbon targets
March 2026Supply and drainage watched online and dispatched so less water is lost
March 2026Live monitoring and predictive maintenance for elevators, aimed at fleets in the hundreds of millions
March 2026Air, water, and soil monitored online, so environmental action can be specific
March 2026The library is still being added to, for teams that run IoT projects