Search found 89 matches

by fasani
Wed Aug 05, 2020 7:01 pm
Forum: ESP-IDF
Topic: Starting a new multi epaper driver component for ESP-IDF
Replies: 6
Views: 1195

CalEPD new release supports some new manufacturers

If you are interested in using ESP-IDF in your next project check it out, new models added include: [*] Waveshare 12.48 with ESP32 devKitC connector (4 SPI epaper, should get an ESP32 with PSRAM update) [*] Good display 5.83 B/w and also 3 colors Size: 600 * 448 Colors: B/W/RED [*] A new very intere...
by fasani
Mon Jun 22, 2020 9:04 am
Forum: General Discussion
Topic: Automatic Light Sleeping during long spi transactions and Gpio states
Replies: 1
Views: 667

Re: Automatic Light Sleeping during long spi transactions and Gpio states

I'm also interested to know more about this. One question though, reading the manual it says: In light sleep mode, digital peripherals, most of the RAM, and CPUs are clock-gated, and supply voltage is reduced. That if I understood well is that SPI transmission stops right, but after you send the Pix...
by fasani
Mon Jun 22, 2020 8:53 am
Forum: General Discussion
Topic: Power rail transience when using SPI on battery
Replies: 2
Views: 2374

Re: Power rail transience when using SPI on battery

Hey there,
This looks like an interesting topic. Sadly I don't have any Oscilloscope in my small studio so I won't be able to reproduce. But does anyone has a hint on what's going on?
Is possible to see your SPI instantiation? PINS used, program, etc.
by fasani
Sun Jun 21, 2020 1:07 pm
Forum: ESP-IDF
Topic: ESP-IDF example to download a file from the web
Replies: 3
Views: 701

Re: ESP-IDF example to download a file from the web

Solved:

Found a way to fill the display buffer from a Bitmap image (8, 4 & 1 bits supported. Just if anyone wants to take a look, here is the code:
https://github.com/martinberlin/cale-id ... factor/oop
by fasani
Fri Jun 19, 2020 5:51 am
Forum: ESP-IDF
Topic: building a 3rd party library
Replies: 23
Views: 2267

Re: building a 3rd party library

I think here there is a misunderstanding of the concepts on how to build something. It took me a while to get it right too, since I started with the Arduino framework and PlatformIO as IDE, and that's a bit a different world. IDF way as I see it is described here: Build system https://docs.espressif...
by fasani
Wed Jun 17, 2020 6:37 pm
Forum: ESP-IDF
Topic: ESP-IDF example to download a file from the web
Replies: 3
Views: 701

Re: ESP-IDF example to download a file from the web

Good so let's resume this with a funny story: ESP32 - Get's a content-length of 60Kb and starts downloading Backend - I have 60K image! ESP32 - mhhh ok but I found only 11Kb!!! so I stop downloading Backend - you fool... So in this construction I got in the middle, and started to ask, why I get only...
by fasani
Wed Jun 17, 2020 12:21 pm
Forum: ESP-IDF
Topic: ESP-IDF example to download a file from the web
Replies: 3
Views: 701

Re: ESP-IDF example to download a file from the web

A bit more research and partial success: https://github.com/martinberlin/cale-idf/blob/refactor/oop/main/cale.cpp I'm just trying to call the DATA event and dumping what comes using a buffer of 1024 bytes. It's working but somehow I'm not receiving the whole downloaded Buffer. So for sure I'm doing ...
by fasani
Tue Jun 16, 2020 9:49 am
Forum: ESP-IDF
Topic: OTG Host on ESP32-S2?
Replies: 8
Views: 1610

Re: OTG Host on ESP32-S2?

I'm also interested like ungato to know more about OTG host in the S2. It's definitivaly one very interesting feature!
Please let us know some details
by fasani
Tue Jun 16, 2020 5:20 am
Forum: ESP-IDF
Topic: ESP-IDF example to download a file from the web
Replies: 3
Views: 701

ESP-IDF example to download a file from the web

Hello dear forum, I'm in the process to learn IDF coming from Arduino-framework since the beginning of 2020. I've been searching for a way to do something similar to what WiFiClient does in Arduino-espressif32. What I would like to achieve: To instantiate the WiFiClient and make an HTTP request. And...
by fasani
Sat Jun 13, 2020 6:11 pm
Forum: ESP-IDF
Topic: Starting a new multi epaper driver component for ESP-IDF
Replies: 6
Views: 1195

CalEPD release 0.9.2

The component is ready to be tested: https://github.com/martinberlin/CalEPD 7 models where already added 8-) https://github.com/martinberlin/cale-idf/wiki Last one is a 12.48 inches multi epaper display from Waveshare (1304*984 pixels) Classmap for those interested :geek: https://storage.luckycloud....

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