Search found 748 matches

by rudi ;-)
Wed Apr 26, 2017 4:27 pm
Forum: ESP32 HDK
Topic: About the CAN controller.
Replies: 74
Views: 7338

Re: About the CAN controller.

Hi guys. Just to confirm: Wroom32 GPIO5 <---------> CAN TXD (D) Wroom32 GPIO4 <---------> CAN RXD (R) Is this correct? In relation to the nature of the question, first, how you want drive CAN on ESP32? MCP2551 , TJA1051 , SN65HVD233 5V / 3.7V / 3.3V cause ESP32 is 3.3V - be sure your Receive Lines ...
by rudi ;-)
Tue Apr 25, 2017 4:22 pm
Forum: General Discussion
Topic: How to Visually Tell New from Old Silicon?
Replies: 14
Views: 480

Re: How to Visually Tell New from Old Silicon?

The getChipRevision function in Arduino has a bug, by the way, as it has "&& EFUSE_RD_CHIP_VER_RESERVE_V" instead of "& EFUSE_RD_CHIP_VER_RESERVE_V". .... btw: LoL https://github.com/espressif/arduino-esp32/blob/master/cores/esp32/Esp.cpp#L120 uint8_t EspClass::getCh...
by rudi ;-)
Tue Apr 25, 2017 11:34 am
Forum: General Discussion
Topic: How to Visually Tell New from Old Silicon?
Replies: 14
Views: 480

Re: How to Visually Tell New from Old Silicon?

Ah, thank you Ivan, now we get some more "new" details we can test if the parcel delivery earliest next week ;) .... best wishes rudi ;-) btw "new" details: Who always keeps such information back to the end, The silicon vallery, the manufacturer, the developer, the "discover...
by rudi ;-)
Tue Apr 25, 2017 11:27 am
Forum: General Discussion
Topic: How to Visually Tell New from Old Silicon?
Replies: 14
Views: 480

Re: How to Visually Tell New from Old Silicon?

hi rudi ;-) the ESP32-D0WDQ6 sample came from distribution as silicon version 1 and I've replaced into a ESP-WROOM-32 module. the piece marking says 012017 , PC3W29. Apparently the manufacturing week doesn't ensure being V1 but, from ESP_igrr words, prior to that there were some pieces manufactured...
by rudi ;-)
Tue Apr 25, 2017 10:59 am
Forum: General Discussion
Topic: How to Visually Tell New from Old Silicon?
Replies: 14
Views: 480

Re: How to Visually Tell New from Old Silicon?

rudi ;-) , is that information from EFUSES fully trustable? The piece I have was supposed to be silicon version 1 and I'm reading 0. if you not get this "sample" piece explicitly from espressif, then i think you only have Rev 0 cause the silicon Rev 1 is "just in time to go on" ...
by rudi ;-)
Tue Apr 25, 2017 10:16 am
Forum: ESP32 HDK
Topic: Guidelines for external antenna layout
Replies: 2
Views: 198

Re: Guidelines for external antenna layout

The ESP-WROVER does have a connector for attaching an external antenna. hi pratik, i wounder you know when ESP-WROVER is comming out officially and which connection is standard active? internally pcb antenna or external ipx / u-fl ? thanks best wishes rudi ;-) antenna_intern_extern_wrover.jpg
by rudi ;-)
Sun Apr 23, 2017 9:56 pm
Forum: ESP32 HDK
Topic: Pin differences for embedded flash
Replies: 3
Views: 117

Re: Pin differences for embedded flash

good catch robin, txs, @espressif From the ESP32 series of chips specified in this document, ESP32-D2WD has 16 Mbits of embedded flash, con- nected via pins GPIO16, GPIO17, SD_CMD, SD_CLK, SD_DATA_0 and SD_DATA_1. The other chips in the ESP32 series have no embedded flash. this mean, GPIO16 can not ...
by rudi ;-)
Thu Apr 20, 2017 10:40 pm
Forum: ESP32 HDK
Topic: ESP32-D2WD with PSRAM32 , SPI Flash , free Pins - rules to be noted -
Replies: 4
Views: 183

Re: ESP32-D2WD with PSRAM32 , SPI Flash , free Pins - rules to be noted -

Pins reference: https://esp32.com/viewtopic.php?f=12&t=1313&p=7737#p7737 txs WiFive, the datasheet of PSRAM32 would be nice - but i think we must wait for this longer time. hope we can get some details here. know, jeroen is hard at work on the things and PSRAM, he do many effort in this the...
by rudi ;-)
Thu Apr 20, 2017 10:33 pm
Forum: Showcase
Topic: Whitecat ESP32 N1 board / Lua RTOS
Replies: 4
Views: 176

Re: Whitecat ESP32 N1 board / Lua RTOS

.. RFM95W datasheet: http://www.hoperf.com/upload/rf/RFM95_96_97_98W.pdf RF96 datasheet: https://whitecatboard.org/git/RF96-HOPERF.pdf .. thank you. Where is the board manufactured? But that does not have to mean anything, which drives the price so high, how much layer has it? The board looks inter...
by rudi ;-)
Thu Apr 20, 2017 8:27 pm
Forum: General Discussion
Topic: Hi , is there any sample code for uart in esp32..??
Replies: 5
Views: 136

Re: Hi , is there any sample code for uart in esp32..??

I have tried all those codes , i cannot able to read the string in esp32 , am just able to read only the length of the string, what modification will am need to do in order to read a string..? string is only a container with bytes, nothing more if you talk about "string" you mean a char v...

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