IoT Security
IoT Networking
Wireless and low-power protocols that connect IoT devices.
- 8 notes
- 69 minutes of reading
- The IoT connectivity landscape: range, power and data rate trade-offsA map of IoT connectivity options, from Bluetooth and Zigbee to LoRaWAN and 5G, explaining the range, power and data rate trade-offs and how to choose the right one for a project. 8 min · Beginner
- Wi-Fi and Bluetooth Low Energy for IoTHow Wi-Fi and Bluetooth Low Energy (BLE) are used in IoT, the features that matter for constrained devices, BLE roles, GATT and pairing modes, and how to secure both. 9 min · Beginner
- Zigbee, Thread and Matter: mesh networking for smart homesHow the Zigbee and Thread mesh networks work, how they differ, and how the Matter standard sits on top to make smart-home devices from different brands work together securely. 9 min · Intermediate
- LPWAN compared: LoRaWAN, Sigfox, NB-IoT and LTE-MHow low-power wide-area networks (LPWAN) send small amounts of data over kilometres on a battery, with a comparison of LoRaWAN, Sigfox, NB-IoT and LTE-M and their security models. 9 min · Intermediate
- MQTT explained: brokers, topics, QoS and retained messagesHow MQTT works: the broker, publish/subscribe, topic design and wildcards, the three QoS levels, retained messages, last will, sessions and the main MQTT 5 additions, with commands to try. 9 min · Intermediate
- CoAP and other constrained protocols compared with HTTPWhat the Constrained Application Protocol (CoAP) is, how it maps REST onto UDP, its message types, Observe and block transfers, how it is secured, and how it compares with HTTP, MQTT and LwM2M. 8 min · Intermediate
- IPv6 for IoT: 6LoWPAN and why IPv6 suits billions of devicesWhy IPv6 is the natural addressing system for IoT, and how 6LoWPAN squeezes IPv6 into IEEE 802.15.4 radio frames using header compression, fragmentation, RPL routing and border routers. 9 min · Advanced
- Cellular IoT and 5G: NB-IoT, LTE-M, eSIM and private networksHow cellular networks connect IoT devices: NB-IoT, LTE-M, 5G RedCap and massive IoT, how eSIM and iSIM change provisioning, and how private networks and private APNs improve security. 8 min · Intermediate