Search found 13 matches

by Azaelyus
Tue Mar 20, 2018 3:05 pm
Forum: General Discussion
Topic: WROOM32 wifi connection takes too long
Replies: 6
Views: 10616

Re: WROOM32 wifi connection takes too long

Ok guys, did not know what happend but its working now. I just deleted platformio packages and deleted compiled code from this project. Did clean compile and its working. Strange :D
Thanks tho!
by Azaelyus
Tue Mar 20, 2018 1:14 pm
Forum: General Discussion
Topic: WROOM32 wifi connection takes too long
Replies: 6
Views: 10616

Re: WROOM32 wifi connection takes too long

Seems like there is a problem with arduino firmware. I have upload espidf-http-request and its connecting almost immediately (under 1 sec). I dont know what can be wrong tho.
by Azaelyus
Tue Mar 20, 2018 11:27 am
Forum: General Discussion
Topic: WROOM32 wifi connection takes too long
Replies: 6
Views: 10616

Re: WROOM32 wifi connection takes too long

Heres the schematic: https://ctrlv.cz/shots/2018/03/20/hflo.png Battery im using: http://lygte-info.dk/review/batteries2012/Soshine%2018650%20LiFePO4%201800mAh%20(Black)%20UK.html Heres the PCB layout: https://ctrlv.cz/shots/2018/03/20/FY2K.png Heres the photo of my product: https://ctrlv.cz/shots/2...
by Azaelyus
Tue Mar 20, 2018 10:23 am
Forum: General Discussion
Topic: WROOM32 wifi connection takes too long
Replies: 6
Views: 10616

Re: WROOM32 wifi connection takes too long

Any ideas please? This can help me saving like 200 running days with this module, because im powering ESP with LiFePo4 battery. Any second for me is really important.
by Azaelyus
Mon Mar 19, 2018 4:53 pm
Forum: General Discussion
Topic: WROOM32 wifi connection takes too long
Replies: 6
Views: 10616

WROOM32 wifi connection takes too long

Hello guys, im working on my latest project and im having some issues. Im trying to connect to wifi with code like this: WiFi.mode(WIFI_STA); WiFi.enableSTA(true); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) delay(1); The problem is that it takes 3200 ms everytime. Im using my ...
by Azaelyus
Thu Feb 15, 2018 10:38 am
Forum: General Discussion
Topic: Mosfet choice
Replies: 11
Views: 25788

Re: Mosfet choice

Im using 18650 http://lygte-info.dk/review/batteries2012/TrustFire%20TF18650%203000mAh%20%28Flame%29%20UK.html Thats why i want as low dropout as i can because the battery gives out about 3,5 v when it reaches 90% of its capacity. Thats why MCP1700 max 200 mV dropout is the best option for me. Ok, i...
by Azaelyus
Wed Feb 14, 2018 7:04 pm
Forum: General Discussion
Topic: Mosfet choice
Replies: 11
Views: 25788

Re: Mosfet choice

Thank you! Great explanation. I will use those two. P T1 - http://uk.farnell.com/on-semiconductor/nds356ap/mosfet-p-sot-23/dp/9846409?st=nds356 N T2 - which one of those 3 is the best one? http://uk.farnell.com/on-semiconductor/bss123lt1g/mosfet-n-sot-23/dp/9558640?st=bss123 http://uk.farnell.com/di...
by Azaelyus
Wed Feb 14, 2018 4:20 pm
Forum: General Discussion
Topic: Mosfet choice
Replies: 11
Views: 25788

Re: Mosfet choice

This is great! :) Do i need to set the GPIO to pull down or something else? Also, are there any newer MOSFETs on the market? Farnell etc? Maybe we can get lower RDS(on) (those two have like 6 ohm, which is quite bad). I dont really understand how MOSFETs work, thats why i am asking. :/ Edit: why is ...
by Azaelyus
Wed Feb 14, 2018 2:20 pm
Forum: General Discussion
Topic: Mosfet choice
Replies: 11
Views: 25788

Re: MOSFET CHOICE

Current drain is none when GPIO is low, setting GPIO to high opens the P-MOS. What does it mean none? Under 1 uA? VBAT can be up to 18V, select the R10/R11 to get the desired voltage. Will the circuit work with battery level 4,2 max to 3,5 min and GPIO 3,3V? In case i use NDS356 as P and BSS123 as ...
by Azaelyus
Tue Feb 13, 2018 8:15 pm
Forum: General Discussion
Topic: Mosfet choice
Replies: 11
Views: 25788

Mosfet choice

Hello guys, im building my new project, where i want to meassure my battery periocidaly (every 12 hours). I was searching on the internet and i found this scheme. https://i.stack.imgur.com/RnPp8.jpg I want to ask you, if u can recommend me some P MOSFET tranzistor with low rds(on) and with parameter...