Search found 827 matches

by rudi ;-)
Mon May 29, 2017 8:50 pm
Forum: General Discussion
Topic: Any Database connect (odbc like) ?
Replies: 2
Views: 39

Re: Any Database connect (odbc like) ?

Is there some ESP32 available API, similar to Windows ODBC, to access any databases ? Tks this question sound is not full clear to me - and can have many possible answers. so first: where is the database - on esp32 --> SD Card --> wear leveling / SPI Flash -on a local PC HOST -on Internet Host who ...
by rudi ;-)
Sat May 27, 2017 10:59 pm
Forum: News
Topic: ANNOUNCEMENT: Chinese National holiday May 28 - May 30 端午节
Replies: 0
Views: 44

ANNOUNCEMENT: Chinese National holiday May 28 - May 30 端午节

FYI: there are chinese national holiday "Dragon Boat Festival holiday" and have a duration of 3 days from begin of May 28. there are some on holiday and it may happen that not immediately on post is replied. who wants to know more about the national holidays, here is a Impression and a sma...
by rudi ;-)
Thu May 25, 2017 8:57 pm
Forum: ESP32 HDK
Topic: Needed additional pins for PSRAM
Replies: 17
Views: 1169

Re: Needed additional pins for PSRAM

No, sorry. The flash and psram have slightly different timing requirements, and the intrinsics of the cache mechanism makes it impossible to cater to both using one clock line. I was surprised by that myself as well and suggested a few workarounds to the digital team, but seems they already thought...
by rudi ;-)
Thu May 25, 2017 6:59 pm
Forum: ESP32 SDK
Topic: I2S microphone (RX)
Replies: 23
Views: 1009

Re: I2S microphone (RX)

BuddyCasino wrote:
hope for the digi tiny ICS boards asap

Already packaged, will send them out tomorrow!

:D
by rudi ;-)
Thu May 25, 2017 5:53 pm
Forum: ESP32 SDK
Topic: I2S microphone (RX)
Replies: 23
Views: 1009

Re: I2S microphone (RX)

BuddyCasino wrote:I like things small and digital, so its not for me. I can see the appeal though - good luck!

you are right - perhabs i will try - - hope for the digi tiny ICS boards asap :)))
best wishes
rudi ;-)
by rudi ;-)
Thu May 25, 2017 3:21 pm
Forum: ESP32 SDK
Topic: I2S microphone (RX)
Replies: 23
Views: 1009

Re: I2S microphone (RX)

@buddy
what you think
can we take for a short test UDA1380 too ?
it has Tx and Rx and I²C for Vol and others.

Sheet SRC

pinHeader.png
pinHeader.png (262.92 KiB) Viewed 101 times


best wishes
rudi ;-)
by rudi ;-)
Thu May 25, 2017 1:51 pm
Forum: ESP32 SDK
Topic: I2S microphone (RX)
Replies: 23
Views: 1009

Re: I2S microphone (RX)

:)
by rudi ;-)
Thu May 25, 2017 1:18 pm
Forum: General Discussion
Topic: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM
Replies: 12
Views: 309

Re: D0WD D2WD WROOM-32 WROVER deep sleep SPI Flash pSRAM

from the readthedocs the standing theme 1.8V from flash and psram speak detailed 1.8V: _info_electrical_flash+SRAM.jpg alternate: but we can use 3.3 flash and 3.3 pSRAM-32 too right? it is not a must2take 1.8V doing, or? then there is no need to use bootstrap or efuse. does this Interfering ULP or d...
by rudi ;-)
Thu May 25, 2017 11:46 am
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 64
Views: 3526

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

file attached
LY68S3200_1.2.pdf
pSRAM Lyontek 32MBit 1.8V
(591.3 KiB) Downloaded 45 times



edit: an important note on sharing CLK.

btw:
LY68L6400_0.3.pdf
pSRAM Lyontek 64MBit 3.3V
(522.6 KiB) Downloaded 36 times


LY68S6400_0.2.pdf
pSRAM Lyontek 64MBit 1.8V
(522.31 KiB) Downloaded 27 times
by rudi ;-)
Thu May 25, 2017 11:44 am
Forum: General Discussion
Topic: which new "esp" 8 pin ic is this on the new esp32 modul? ;-)
Replies: 64
Views: 3526

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

The puzzle becomes more complete CONNECTING Taken from the ESP32 technical reference manual 0_pSRAM-ESP-tech_ref.jpg POWER-UP INITIALIZATION Taken from the Lyontek Datasheet: LY68S3200SL and is of the same kind in Initial to ESP-pSRAM32 (2017.01 V1.0 Initial release) 1_pSRAM-Ly-powerup.jpg SPI READ...

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