At first I was like “what good is WiFi 6 when the thing can only transfer 20Mbps?” since the only thing I remember about WiFi 6 is higher bandwidth. (I’ve used an earlier ESP-32 with WiFi and the transfer rates are indeed kind of poky.) But they go on to explain:
The 802.11ax standard (Wi-Fi 6) used in ESP32-C5 contains a variety of added features which provide concrete benefits for IoT devices. For example,[…] high efficiency and low latency in congested wireless environments, while also improving connectivity in high density environments. Another important feature of the 802.11ax standard is the Target Wake Time (TWT), which allows devices to sleep for an extended time-period, with assistance from an 802.11ax-capable Wi-Fi access point. This feature makes possible the use of ESP32-C5 in battery-operated devices that can last for years, while staying connected non-stop.
So apparently the device can go into deep sleep but still stay on the LAN, and wake when it receives a packet. That is extremely cool.
Thank you for answering the first question that came to my mind
when reading the headline!
So apparently the device can go into deep sleep but still stay
on the
LAN, and wake when it receives a packet. That is extremely cool.
That is really cool, and might put it in the same league as
Zigbee/Zwave as a battery based sensor. And might motivate me to
eventually move to 802.11ax at some point.
At first I was like “what good is WiFi 6 when the thing can only transfer 20Mbps?” since the only thing I remember about WiFi 6 is higher bandwidth. (I’ve used an earlier ESP-32 with WiFi and the transfer rates are indeed kind of poky.) But they go on to explain:
So apparently the device can go into deep sleep but still stay on the LAN, and wake when it receives a packet. That is extremely cool.
Thank you for answering the first question that came to my mind when reading the headline!
That is really cool, and might put it in the same league as Zigbee/Zwave as a battery based sensor. And might motivate me to eventually move to 802.11ax at some point.