Networking Basics

Its been a while that docker or container technologies are threatening the way we are delivering software. Cloud platforms are offering the capabilities which were only possible for the powerful and rich (ok, may be I could have written “were hard to get”). Networks, their administration and management are being abstracted away and the software … Read more

MQTT – Message Queue Telemetry Transport

What is MQTT A message protocol with “a small code footprint and on-the-wire footprint” . MQTT is a publish-subscribe-based messaging protocol. On top of TCP/IP. Requires a broker (e.g. mosquito, hivemq, azure IO Hub). ISO standard (ISO/IEC PRF 20922). A message bus for: unreliable, high latency, low bandwidth Payload with a plain byte array. MQTT … Read more

RS-232

You take the red pill, you stay in Wonderland, and I show you how deep the rabbit hole goes. The Matrix – 1999 Morpheus’ speech was a turning point for both Neo and the movie Matrix and that is the case in regard to RS-232, the red pill. It will give you the understanding and … Read more