ESP8266 Community Forum

- Wed Jan 28, 2015 10:26 am #8402 Calling node.readvdd33() restarts the ESP8266.

Code: Select all
> print(node.readvdd33())
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NodeMCU 0.9.5 build 20150127  powered by Lua 5.1.4
lua: cannot open init.lua
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- Wed Jan 28, 2015 10:36 am #8403 i take a quick look and it's not working if wifi mode is station. you need to use wifi.sta.disconnect() before meassure voltage in station mode. but its working correctly in stationap mode.

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- Wed Jan 28, 2015 1:40 pm #8414 Good finding.
That explains why it has never worked for me.
Damn bug (obviously not in lua, but in espressif's code).

- Thu Feb 19, 2015 3:39 pm #10168 It is a pity that node.readvdd33 function () is unstable and almost unusable . Measured voltage faithfully reproduces the input voltage. This could very well be used for battery powered sensors.