Alex Lennon
Embedded & IoT Devices
https://slides.com/ajlennon/connectivity-security-visualisation
Connectivity, Security, Visualisation
Alex J Lennon (ajlennon@dynamicdevices.co.uk)
- Everything was very proprietary and "roll your own"
- Needed open standards based Internet Communications
- Embedding TCP/IP stacks in little black boxes ('98)
TCP/IP Communications
The OpenSource Revolution & Linux
SBC104 ('96)
- 25MHz 386
- 2MB RAM, 1MB FLASH
Time Passes...
- Pervasive Devices
- Machine 2 Machine (M2M)
- Internet of Things (IoT)
- Industrial Internet of Things (IIoT)
Arduino Diecimila (2007)
16MHz, 16KB Flash, 1KB RAM
Raspberry Pi (2013)
700MHz, 256MB RAM, SD Card Flash
An Explosion of IoT Devices
Mosquitto, InfluxDB,
Node-Red, Grafana
"LAMP" (Linux, Apache, MySQL, PHP) for IoT Sensor Devices
- Mosquitto MQtt broker for assured messaging
- InfluxDB time series database for data storage
- Node-Red for transformation and Analytics
- Grafana for data visualisation
MQtt - Assured Messaging
- MQtt developed in '90s by Andy Stanford Clark, Arlen Nipper
- An Assured Messaging delivery protocol
- Sits on top of TCP/IP and guarantees best effort delivery of messages
- Publication/Subscription architecture
- Can be secured to sit on top of TLS (PKI authentication/encryption)
- Now an Open OASIS standard
- New IoT protocol called MQtt-SN now available which sits on top of UDP for more contrained IoT devices
- Mosquitto broker (https://mosquitto.org/)
Node-Red
- Node-RED is a programming tool for wiring together hardware devices, APIs and online services in new and interesting ways.
- OpenSource, initially developed by IBM in 2013 and now a part of the OpenJS foundation
- Node based, extensible, rapid prototyping environment
Grafana
- OpenSource Data Observation and Dashboarding
DEMO...
Connectivity, Security, Visualisation
By Alex Lennon
Connectivity, Security, Visualisation
Talking about IoT connectivity, security, visualisation for SThree
