Search found 69 matches

by ESP_Me-no-dev
Mon May 25, 2020 9:12 am
Forum: ESP32 Arduino
Topic: approximate timeline for IDF 4 for arduino esp32?
Replies: 1
Views: 215

Re: approximate timeline for IDF 4 for arduino esp32?

There is a branch in the arduino repository for IDF4.0 that you can try, but to answer your question, wee will skip 4.0 and go directly to 4.2 (current IDF master) because of support for ESP32-S2. If you want to try that, there is an "esp32s2" branch that you can checkout
by ESP_Me-no-dev
Thu May 14, 2020 8:52 am
Forum: General Discussion
Topic: When will ESP32-S2 add to Arduino?
Replies: 7
Views: 1358

Re: When will ESP32-S2 add to Arduino?

It's already added, just not in the master branch. Check the arduino repo for "esp32s2" branch and give it a go. Be warn that it's a work in progress so some things might be broken.
by ESP_Me-no-dev
Mon Apr 27, 2020 2:48 pm
Forum: ESP32 Arduino
Topic: WROVER Dev Kit 4.1 LCD and SD Not Working
Replies: 14
Views: 4303

Re: WROVER Dev Kit 4.1 LCD and SD Not Working

OK So I see two issues.

1. You should use SDMMC on Wrover-Kit
2. If you want to use SPI and use the LCD as well, you need to init first a new SPI port (HSPI) and then init the SD card to use that port.

LCD and SD do not share pins and the SPI port is going to the device initialised last.
by ESP_Me-no-dev
Fri Apr 10, 2020 6:26 am
Forum: ESP32 Arduino
Topic: ESP32 prints some weird characters on i2c lcd using AsyncWebServer
Replies: 3
Views: 1657

Re: ESP32 prints some weird characters on i2c lcd using AsyncWebServer

You are not sending a response to the request in the alarm handler :) You must request->send(response) in every handler.
by ESP_Me-no-dev
Tue Oct 29, 2019 8:04 am
Forum: ESP-WHO 中文讨论版
Topic: esp-who ov2640驱动中曝光值的设置问题
Replies: 1
Views: 6746

Re: esp-who ov2640驱动中曝光值的设置问题

The exposure settings on those sensors is actually measured in lines. So for max res of 1600x1200 you can expose for the whole duration of 1200 lines. Not sure if that makes any sense :). For smaller resolutions you get less lines and less exposure. There are 3 main resolutions from which all others...
by ESP_Me-no-dev
Fri Aug 02, 2019 8:08 am
Forum: ESP32 Arduino
Topic: Two ESP32-CAM synchronously streaming to PI4
Replies: 10
Views: 2497

Re: Two ESP32-CAM synchronously streaming to PI4

Hi Lucas, As far as I can understand, you want to collect all frames in the loop and give the latest to the web server. Am I correct? I will continue based on that assumption :) You should not use busy loops inside threads, instead you should use one of the FreeRTOS objects that allow for threads to...
by ESP_Me-no-dev
Thu Aug 01, 2019 7:55 am
Forum: General Discussion
Topic: ESP32-CAM Stop Working
Replies: 2
Views: 1191

Re: ESP32-CAM Stop Working

please try to diagnose the problem a bit more. Just stop working does not give any clues :) I have ESP32 cams running for days without issues. What is the XCLK that you are using? What is in the logs when they stop? Which example are you running?
by ESP_Me-no-dev
Wed Jun 12, 2019 7:11 am
Forum: ESP-WHO
Topic: ESP-EYE __ Camera init failed with error 0x20003
Replies: 1
Views: 8572

Re: ESP-EYE __ Camera init failed with error 0x20003

Can you swap the sensor on that board and try again? Put one from the other working cams and see if it's the board or the sensor that is faulty (I will bet on the sensor here). Error means that the ESP was not able to communicate over I2C with the camera, but the line before that means that the came...
by ESP_Me-no-dev
Wed Jun 12, 2019 7:02 am
Forum: ESP32 Arduino
Topic: ESP32 CAM direct access to image data
Replies: 11
Views: 10569

Re: ESP32 CAM direct access to image data

I don't agree that things are not well documented. The camera driver is rather a basic thing. You setup the camera and start grabbing frame buffers from it. Structure of the frame buffer is in the header. Frame buffer in every case that I have seen contains an array of pixels in the form of (width *...
by ESP_Me-no-dev
Tue Jun 11, 2019 2:09 pm
Forum: ESP32 Arduino
Topic: ESP32 CAM direct access to image data
Replies: 11
Views: 10569

Re: ESP32 CAM direct access to image data

I'm really sorry you find this so frustrating. I had no idea that "GRAYSCALE", "RGB565" or any other of the formats need explanation. 1. GRAYSCALE means values from 0 to 255 for each pixel 2. RGB565 means that a 16 bit value is per pixel and is comprised from 5 bits red, 6 bits green and 5 bits blue...

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