Search found 89 matches

by HermannSW
Wed Jul 10, 2019 3:50 pm
Forum: ESP32 Arduino
Topic: ESP32-CAM ov2640 exposure control/FREX mode
Replies: 31
Views: 3045

Re: ESP32-CAM ov2640 exposure control/FREX mode

I thought that now I do not need the soldered cable to pin10 of connector anymore. But I did use it now once, I connected logic analyzer to ESP32-CAM GND and the cable soldered to pin10. The idea was to see whether pin B2(FREX) gets changed while doing successful global external shutter captures. I ...
by HermannSW
Tue Jul 09, 2019 7:26 pm
Forum: ESP32 Arduino
Topic: ESP32-CAM ov2640 exposure control/FREX mode
Replies: 31
Views: 3045

Re: ESP32-CAM ov2640 exposure control/FREX mode

Today the two newly ordered ESP32-CAM modules arrived. Both had Wifi issues, although I did not change location. Adding external Wif antenna fixed the issue: https://stamm-wilbrandt.de/en/forum/IMG_090719_193926.jpg Both modules work like the module I did solder a cable to pin10 of connector. It was...
by HermannSW
Tue Jul 09, 2019 5:44 pm
Forum: ESP32 Arduino
Topic: ESP32Cam and Servo Control
Replies: 9
Views: 765

Re: ESP32Cam and Servo Control

> RC wasnt slow / inaccurate > I just tested a newly arrived ESP32-CAM module, and the FCameraWebServer reported framerates were much less than with my current working ESP32-CAM module. It turned out to be Wifi problems, since after I added an external Wifi antenna to the new ESP32-CAM module framer...
by HermannSW
Tue Jul 09, 2019 1:51 pm
Forum: ESP32 Arduino
Topic: ESP32Cam and Servo Control
Replies: 9
Views: 765

Re: ESP32Cam and Servo Control

If the HTML RC wasnt slow / inaccurate i would fly copters with it. That is a good point, I will have to build in a heartbeat signal between intex.html(browser) and app_httpd.cpp(ESP32) and let the ESP32 do "full stop" automatically when no heartbeat received, at least for the 5m/s caterpillar robo...
by HermannSW
Tue Jul 09, 2019 8:22 am
Forum: ESP32 Arduino
Topic: ESP32Cam and Servo Control
Replies: 9
Views: 765

Re: ESP32Cam and Servo Control

... I'd like to use the ESP32Cam to be able to control it's own Pan/Tilt mount that ... Different camera (Raspberry camera), and only tilt calibration (my camera has no Pan). But the automatic calibration code in this posting might be interesting/useful to you with ESP32-CAM as well: https://www.ra...
by HermannSW
Mon Jul 08, 2019 9:24 pm
Forum: ESP32 Arduino
Topic: ESP32-CAM ov2640 exposure control/FREX mode
Replies: 31
Views: 3045

Re: ESP32-CAM ov2640 exposure control/FREX mode

Today I finished "shots" and "5shots" implementation in addition to "shot" in doit: https://github.com/Hermann-SW/Raspberry_v1_camera_global_external_shutter/commit/15e8ad7923e0a01e6d4b15ff815cb50d5bff3655 I tested that all three effects work on GPIO4 (connected to builtin ESP32-CAM flash light) as ...
by HermannSW
Sun Jul 07, 2019 9:01 am
Forum: ESP32 Arduino
Topic: ESP32-CAM ov2640 exposure control/FREX mode
Replies: 31
Views: 3045

Re: ESP32-CAM ov2640 exposure control/FREX mode

I determined that VSYNC signal (GPIO25 per camera_pins.h) is exposed on pin18 of ov2640 flat ribbon cable connector. I did take a logic analyzer capture of CIF mode streaming (400x296) because that was discussed in datasheet. Again I used Raspberry camera as big magnifying glass (HDMI monitor) in or...
by HermannSW
Sat Jul 06, 2019 7:48 pm
Forum: ESP32 Arduino
Topic: ESP32-CAM ov2640 exposure control/FREX mode
Replies: 31
Views: 3045

Re: ESP32-CAM ov2640 exposure control/FREX mode

I am baffled, just played with the last version of FCameraWebServer and reduced builtin camera flash time to only 50µs: https://stamm-wilbrandt.de/en/forum/ov2640.global_shutter_done_menu.png I took 800x600 frames as before and got this frame without haveing changed code nor having done anything wit...
by HermannSW
Sat Jul 06, 2019 6:09 pm
Forum: ESP32 Arduino
Topic: ESP32-CAM ov2640 exposure control/FREX mode
Replies: 31
Views: 3045

Re: ESP32-CAM ov2640 exposure control/FREX mode

I learned how to pass vsync pin define from FCameraWebServer.ino to app_httpd.cpp, just store into global variable. And I eliminated need for "Serial.printf()" of count variable, just declaring it volatile prevents compiler optimizing code away. Finally I made sure that now more than one full frame ...
by HermannSW
Thu Jul 04, 2019 7:08 pm
Forum: Showcase
Topic: ESP32 Board with solar, battery, LoRaWAN and GPS
Replies: 2
Views: 555

Re: ESP32 Board with solar, battery, LoRaWAN and GPS

No need for a battery if you are good with hand generator -- but you are not allowed to stop ;-)
https://www.youtube.com/watch?v=bMX-IVWCnmo

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