Debugging crashes

[riker1]

Hi

just want to understand debugging options ....

while having a temp sensor attachted to the ESP01s it worked fine.

Now I placed it into a box and mounted it, - no easy access - it crashes and I have to unplug the power to reboot.

Syslog is not showing a problem
last entry: Unit: 174 : WD : Uptime 35 ConnectFailures 0 FreeMem 24848

Load is not high:
Load: 22% (LC=25738)

any hints for this approach?

Thanks T

[TD-er]

Power supply? Placed in some box where WiFi reception is poor?
The pins used by the temp sensor have no pull-up resistors active and acts as some kind of antenna?

[riker1]

Hi TD-er,
thanks for the hints,
checked them.

power is providing 400 mA, should be sufficient.
I can not get a value out from system info : Input VCC...

after reboot it reconnects to wifi perfect
it is close to the router.

signal is always around:
Wifi RSSI: -66 dB

Resistor is used for temp sensor ds18b20

[Domosapiens]

power is providing 400 mA, should be sufficient.

I doubt. During WiFi activity the ESP is power hungry.

The Wiki:

USB power supply
If you want to use a USB charger as a power supply, make sure it has a CE marking and delivers enough current. 1 Ampere is the least.

https://www.letscontrolit.com/wiki/inde ... wer_supply

[TD-er]

You could add some elco over the 3V3 line to shave off the peak current.

[riker1]

Thanks TD,

looks it is a heat problem of the buck converter.
getting to warm in the box