- Sat Dec 02, 2017 8:44 am
#72239
I have changed the sensor with an HT21D, hope this will be more reliable, as the DS18B20 are rock solid, almost one year and none of them have failed.
- Tue Jan 23, 2018 3:59 pm
#73432
I've been having trouble with connecting to wifi devices being highly unreliable. The WiFiClient::connect call fails between 50 and 90% of the time, generally with "connection refused". I get the problem even with a bare minimum sketch that does nothing but connect to a tcp server. I'm confident it's not a code problem or a server problem (server is 100% reliable from WGET on raspberry pi).
I have plenty of power going to the device--a 12W USB power wart connected over a second micro USB cable that's going to VIN. I measure 5.2V and 2.4A at the pins on the board (its a Node MCU clone).
So even with way more power than is needed, I should add these caps to filter noise and act as protection from the voltage dropping out?
Just want to make sure I understand the dynamics of it all before I go off and chase this rabbit some more
nandu wrote:You are right. I too faced with resets while enabling STATION_MODE. Spend a lot of time with gdb with no results. Finally put .1uF + 100uF as close as possible. Now things are perfect.
I've been having trouble with connecting to wifi devices being highly unreliable. The WiFiClient::connect call fails between 50 and 90% of the time, generally with "connection refused". I get the problem even with a bare minimum sketch that does nothing but connect to a tcp server. I'm confident it's not a code problem or a server problem (server is 100% reliable from WGET on raspberry pi).
I have plenty of power going to the device--a 12W USB power wart connected over a second micro USB cable that's going to VIN. I measure 5.2V and 2.4A at the pins on the board (its a Node MCU clone).
So even with way more power than is needed, I should add these caps to filter noise and act as protection from the voltage dropping out?
Just want to make sure I understand the dynamics of it all before I go off and chase this rabbit some more
