zigbee2Mqtt part 1 with CC2530 and FTDI

from here:https://github.com/koenkk/zigbee2mqtt

https://www.zigbee2mqtt.io/information/supported_devices.html
Zigbee2mqtt supports several CC2530 and CC2531 devices. Both can be used as a router or coordinator. A discussion of these devices can be found here. For more information about a coordinator and routers can be found here.

Z-Stack coordinator firmwares

This repository contains various Z-Stack coordinator firmwares.

Overiew

Z-Stack	Device	Zigbee	Direct children	Routes	Notes
Z-Stack_Home_1.2 (default)	CC2531	1.2 HA	20	30/0
	CC2530, CC2530 + CC2591, CC2530 + CC2592	1.2 HA	16	30/0
Z-Stack_Home_1.2 (source_routing)	CC2531, CC2530, CC2530 + CC2591, CC2530 + CC2592	1.2 HA	5	40/40
Z-Stack_3.0.x	CC2531	3.0	15	40/0	- Discussion #1445 - Max 40 Zigbee 3.0 devices
	CC2530, CC2530 + CC2591, CC2530 + CC2592	3.0	10	40/0	- Discussion #1445 - Max 40 Zigbee 3.0 devices
Z-Stack_3.x.0	CC26X2R1, CC1352P_2	3.0	50	100/200	- Discussion #1429 - Max 200 Zigbee 3.0 devices

and their limitation:

which one should I use?

This depends:

• Zigbee 3.0 coordinators are only recommended for CC26X2R1 and CC1352P_2 (other devices might not be powerful enough)
• If you have a network of 1 - 30 devices, the Z-Stack_Home_1.2 default firmware is recommended.
• If you have a network of 30+ devices, the Z-Stack_Home_1.2 source routing firmware is recommended.
• Note that the source routing firmware only supports 5 direct children, therefore you need to have routers in range of the coordinator.

it seems reasonable, routing will take a lot of effort to maintain device table, and periodically check the device is there or not, so routing will decrease the connected device, or you need more powerful chip.

I will fist try my CC2530 with external antenna.

using 2530 + FTDI as 2531 dongle:
https://www.zigbee2mqtt.io/information/connecting_cc2530.html

after flashing the firmware, I plug the device into USB of Pi, and following this instruction:https://www.zigbee2mqtt.io/getting_started/running_zigbee2mqtt.html
the instruction use a CC2531, so it appears as ttyACM0,  my ftdi show as ttyusb0, and I have a wireless keyboard/mouse dongle shows as ttyAMA0

here to install zigbee2mqtt
https://www.zigbee2mqtt.io/getting_started/running_zigbee2mqtt.html#2-installing

the default setting is using cc2531, we need to change some setting:

nano /opt/zigbee2mqtt/data/configuration.yaml

https://www.zigbee2mqtt.io/information/connecting_cc2530.html#configuring-zigbee2mqtt

serial:
  port: /dev/ttyUSB0
advanced:
  baudrate: 115200
  rtscts: false

after adding service to systemctl

Some tips that can be handy later:


# Stopping zigbee2mqtt
sudo systemctl stop zigbee2mqtt

# Starting zigbee2mqtt
sudo systemctl start zigbee2mqtt

# View the log of zigbee2mqtt, it will show the action update
sudo journalctl -u zigbee2mqtt.service -f

I purchased few xiami sensors, I paired the switch and the temp/humid sensor.
To pair switch, you need something sharp to push the hole on the back, 3 secs, when the blue led on the left start to flash, it start to pair. Same thing for sensor with a small button on top.
then we can use this command to check the journal

sudo journalctl -u zigbee2mqtt.service -f

we can see the time and the data sent to mqtt.
each device is represented as a 8 bytes ID, it could be the mac address of zigbee chip. in the following you can see there are 2 device one is botton, one is sensor.

Then I can get an other terminal to subscript to each topic(node),

pi@raspberry:~ $ mosquitto_sub -d -t zigbee2mqtt/0x00158d0003584cba

The we can see the data comes in