4 ms·
You can actually get the wifi state as low as 2 seconds in very ideal conditions. Average less than 4 seconds. If rssi is extremely low then it will def take
by antoniuschan99 4y ago
You can actually get the wifi state as low as 2 seconds in very ideal conditions.
Average less than 4 seconds.
If rssi is extremely low then it will def take longer.
Yea the voltage regulator is very important and the ones on the nodemcu have very high quiecient current. Also on the top end you have to look for regulators that can handle the ~500mA peak current too.
Otti Arc or Nordic PPk2 is an invaluable tool!
- bxparks 4y agoPeople do say that WiFi reconnect can be done in 2 seconds, but I have never been able to achieve that myself on my network, no matter the signal strength. I tried static IP, static subnet, and various configs before going to sleep (to retain WiFi signal strength? I can't remember). I always get 5-6 seconds. I think I remember measuring the NodeMCU with a higher Deep Sleep current than the D1 Mini, but I don't remember what that value was. The other thing I forgot to mention that consumes current is the USB-Serial converter on boards like the D1 Mini and NodeMCU, but not present on the ESP-01. I don't know which consumes more, the voltage regulator or the USB-Serial converter.
- antoniuschan99 4y agoIt also could be if you're still using 8266 vs esp32 or if you're on Arduino vs esp-idf. Arduino esp32 is a wrapper on top of the idf so not sure what added things could be slowing the program? Static ip might be even faster! Also, I have it initialized station mode. I do recall the d1 mini having a really low quiescent current. Yea the converters can also take up power I separate that and place it on a jig.