Recently I am new at ESP8266 and bought two variation which are ESP12 and ESP12S.
I use the deepSleep function sleep for 10mins and it works. [ deepSleep(600*1000000); ]
However, it wont works when I try for 1 hour. [ deepSleep(3600*1000000); ]
I have already added 330Ohms between RST and GPIO16 and added the instruction delay(500) after deepSleep().
I also tried to probe the RST pin to monitor is there any RESET pull down occur and I see nothing if I sleep for one hour. I see a pull down if I sleep for 10mins.
Hope someone can help. This issue already annoyed me for 1week.