Shelly 2L Gen3 ws5 and a rough example of

and a rough example of how to detect relative levels of particles like smoke

Want to add more levels or a cheat code

Use your favourite 3

The Pro model improves on the standard version with its gold-plated connectors and ultra-low-jitter clock generator

Shelly 2L Gen3 ws5 and a rough example ofThe Shelly 2L Gen3 is a compact dual channel smart relay designed for lighting control in installations without a neutral wire. It operates on 220240V AC power and requires the included Shelly Bypass 1L 2L connected in parallel to the load for proper functionality in no neutral setups. The device supports Wi Fi and Bluetooth connectivity, allowing for remote control via the Shelly app or integration with home automation systems such as Home Assistant.