20% More powerful, 30% Smaller,
50% Increased range,
100% Protected, Dual power metering
Extremely small: just 39 x 36 x 17mm
Shelly 2.5 fit everywhere, under the existing wall console even if there are a lot of cables.
It’s 30% smaller than Shelly 2
And 5% smaller than Shelly 1
Internal temperature sensor for overheating protection. If the PCB temperature goes at danger level for any reason, the device will switch off.
Shelly 2.5 comes with a programming/debug header which can be used to flash alternative firmware on the device. It has an ESP8266 inside, with a 2MB flash chip. A USB-to-UART adapter is needed as well as a reliable 3.3V with at least 350 mA drive capability.
The following diagram shows the device pinout: