Search found 769 matches

by WiFive
Thu Jun 22, 2017 6:02 pm
Forum: Showcase
Topic: [info] ESP32-PRO - a combine with PIC32 ( USB OTG, USB Device )
Replies: 7
Views: 159

Re: [info] ESP32-PRO - a combine with PIC32 ( USB OTG, USB Device )

OK if you want vdd_sdio for sleep and you exclude 3.3v psram then wroom is out.

If you want custom flash sizes (and low volumes/short lead times) then wrover is out.
by WiFive
Thu Jun 22, 2017 8:28 am
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 101
Views: 5501

Re: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)

Which schematic is he talking about for swapped clk/cmd?
by WiFive
Thu Jun 22, 2017 6:03 am
Forum: Showcase
Topic: [info] ESP32-PRO - a combine with PIC32 ( USB OTG, USB Device )
Replies: 7
Views: 159

Re: [info] ESP32-PRO - a combine with PIC32 ( USB OTG, USB Device )

They may be able to achieve tighter layout without the module. Not sure what their assembly costs are (so no clue if it's a win or loss in that respect). OTOH they possibly need to go through FCC/CE. That is possible, but I think most of their boards are two layer and will have routing, RF and impe...
by WiFive
Thu Jun 22, 2017 4:41 am
Forum: Report Bugs
Topic: esp-idf-template-master sample program not working
Replies: 14
Views: 228

Re: esp-idf-template-master sample program not working

What devboard and power supply are you using? Weird stuff happening around the time WiFi starts up usually indicates an inadequate power supply. He said this one https://world.taobao.com/item/542459608596.htm That LDO may have reasonably high threshold voltage and some USB ports could have low volt...
by WiFive
Thu Jun 22, 2017 4:31 am
Forum: Showcase
Topic: [info] ESP32-PRO - a combine with PIC32 ( USB OTG, USB Device )
Replies: 7
Views: 159

Re: [info] ESP32-PRO - a combine with PIC32 ( USB OTG, USB Device )

To be fair, WROOM uses 3.3V flash and as such isn't directly compatible with 1.8V PSRAM chips. You're right wrt the WROVER module, though. True but there are purportedly 3.3v psram chips out there. I don't really see a reason to not use wrover module on this board (besides the fact they still aren'...
by WiFive
Thu Jun 22, 2017 3:01 am
Forum: General Discussion
Topic: WROOM32 v1.0 vs v1.1 different trace antenna layout
Replies: 5
Views: 127

Re: WROOM32 v1.0 vs v1.1 different trace antenna layout

That is interesting, v1.1 design is from DEC 2016 but I don't think I have seen a pic of one anywhere. Maybe that will be for rev1 rollout. There is another older design too but probably not in circulation anymore.
by WiFive
Wed Jun 21, 2017 9:23 pm
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 101
Views: 5501

Re: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)

rudi ;-) wrote:Status : Development


Just in time for "codename esp64"? 8-)
by WiFive
Wed Jun 21, 2017 9:00 pm
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 101
Views: 5501

Re: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)

Yes, relationship is unclear. Possible espressif was first volume customer for xtx psram. These are interesting http://www.xtxtech.com/en/products.asp?sid=61
by WiFive
Wed Jun 21, 2017 8:43 pm
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 101
Views: 5501

Re: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)

... Hey what was the name of that other PSRAM OEM (not lyontek) that also has dual ram/flash packages? I lost the link. :| we talked in a very earliest thread about prices voltages and available things.. i think it was in "general discussion".. we had lyonthek and ... ... am searching jus...

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