Wireless mesh networks are fascinating because they adapt to changing situations and can bridge longer distances than point-to-point connections. Today we will have a look into the standard Zigbee mesh technology, learn its pros and cons, and compare it with Wi-Fi and LoraWAN networks.
Mesh networks are a little anarchic, and maybe this is why they are fascinating for many free-thinking Makers. But is this true? To find this out, we will:
- Compare mesh networks with star or “hub-n-spoke” networks
- Look at the different roles in a mesh network
- Look at the pros- and cons of a mesh structure
- Enable a Raspberry Pi and a cheap USB dongle to act as a network coordinator
- Find a way to chart the network for analysis automatically
- Try out various network constellations and see if and how it adapts
- Connect the network to Node-Red
- And glimpse into other mesh networks
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Links:
Zigbee2MQTT: www.zigbee2mqtt.io/
IOT STack for Raspberries: github.com/gcgarner/IOTstack
Ikea Tradfri: www.ikea.com/ch/en/search/pro...
Xiaomi ZigBee devices: s.click.aliexpress.com/e/BGsdpble
Philips Hue: www2.meethue.com/en-us
CC2531 Dongles and programmers: s.click.aliexpress.com/e/dP2miONi or bit.ly/2NogMdv
Zigbee Modules: s.click.aliexpress.com/e/5OjauYUY
Other examples: bit.ly/2NqWH65 or bit.ly/2Nspl71
Conbee2: amzn.to/2LRUxtS
File to create an SVG map: drive.google.com/file/d/1xTSs...
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