Product reviews:

• 
  Nous E6 Smart ZigBee LCD Temperature and Humidity Sensor
  Cool little Zigbee temperature and humidity sensor with display, working on rechargeable 2xAAA batteries.
• 
  Sonoff ZBDongle-E Zigbee 3.0 USB Dongle Plus
  Quite powerful Zigbee USB stick with an external antenna. By default a coordinator. Can be flashed as a router.

How to pages:

• Automatically turn ON and OFF a touch monitor Via DDC/CI protocol, based on activity in X11 using XSS lib, on Raspberry Pi 5

  Guide on how to setup automatic on and off of a touch screen for power saving, without a blue screen on a loss of HDMI signal.
• 
  Control WeAct Epaper Module using Arduino

  Guide how to draw on WeAct Epaper module using Arduino.
• Flash Sonoff ZBDongle-E as router under NixOS

  Sonoff ZBDongle-E is quite powerful Zigbee dongle. By default, it's loaded with coordinator firmware. This how to article contains steps cheatsheet to flash it with router firmware under NixOS.
• 
  Read MC8RE-V2 PWM with Arduino All signal outputs, in background, without blocking, using interrupts

  Guide how to read all 7 PWM channels of MC8RE-V2 with Arduino without using blocking calls the main loop.
• 
  Remotely control 2 axis servo with Arduino and MC8B Using SBUS communication between the board and MC8RE-V2 receiver

  Receive data from SBUS, transform to corresponding servo control values, and with smoothing of values to prevent jitter.

Product combos:

• Sonoff ZBDongle-E on APC SurgeArrest PM1WU2-FR