Search found 95 matches

by HermannSW
Sat Mar 28, 2020 3:26 pm
Forum: ESP32 Arduino
Topic: Wifi joystick with display
Replies: 4
Views: 3242

Re: Wifi joystick with display

Previous raspcatbot was just too fast for reliable joystick control. So I replaced the 1500rpm gear motors with original 330rpm motors on my 2nd T101 platform. The new design with just one lipo is much smaller, until now 3S 1000mAh 25C lipo. But ordered 4S 1300mAh 95C lipos just arrived ;-) https://...
by HermannSW
Tue Mar 24, 2020 9:25 pm
Forum: ESP32 Arduino
Topic: Wifi joystick with display
Replies: 4
Views: 3242

Re: Wifi joystick with display

I found the reason for timeout not working yesterday, details in this posting: https://www.raspberrypi.org/forums/viewtopic.php?f=37&t=267999&p=1631419#p1631419 I did select only minimal speeds with the Wifi joystick, and even with that the robot already moves so fast! Seeing that, 5m/s on the groun...
by HermannSW
Mon Mar 23, 2020 11:19 pm
Forum: ESP32 Arduino
Topic: Wifi joystick with display
Replies: 4
Views: 3242

Re: Wifi joystick with display

I was able to control raspicatbot's motors for the 1st time with Wifi joystick. Unfortunately I had to comment out the lines handling the timeouts. Reason was that after a short time the timeouts triggered, although I did set timeout to 1s! I will need to debug that. The red button of Wifi joystick ...
by HermannSW
Sun Mar 22, 2020 7:48 pm
Forum: ESP32 Arduino
Topic: Wifi joystick with display
Replies: 4
Views: 3242

Re: Wifi joystick with display

After a series of raspcatbot functional testing now the caterpillar motors do not disturb the camera tilt servo anymore (after I provided a separate power source for the servo): https://www.raspberrypi.org/forums/viewtopic.php?f=37&t=267999&p=1630185#p1630185 https://stamm-wilbrandt.de/en/forum/Pass...
by HermannSW
Fri Mar 20, 2020 2:03 pm
Forum: ESP32 Arduino
Topic: Wifi joystick with display
Replies: 4
Views: 3242

Wifi joystick with display

I am just building a fast caterpillar robot (raspcatbot): https://www.raspberrypi.org/forums/viewtopic.php?f=37&t=267999 Even when it will drive autonomously, it needs a wireless heartbeat signal from wireless device. Either on command or when heartbeat got missed, the robot will do immediate emerge...
by HermannSW
Mon Oct 28, 2019 6:08 pm
Forum: ESP32 Arduino
Topic: ESP32-CAM ov2640 exposure control/FREX mode
Replies: 33
Views: 13493

Re: ESP32-CAM ov2640 exposure control/FREX mode

It turned out that Raspberry v1 camera can do global shutter capturing at daylight of fast rotating propeller as well: https://github.com/Hermann-SW/Raspberry_v1_camera_global_external_shutter#daylight https://raw.githubusercontent.com/Hermann-SW/Raspberry_v1_camera_global_external_shutter/master/re...
by HermannSW
Tue Aug 06, 2019 6:47 pm
Forum: ESP32 Arduino
Topic: ESP32-CAM ov2640 exposure control/FREX mode
Replies: 33
Views: 13493

Re: ESP32-CAM ov2640 exposure control/FREX mode

I just had serious problems in getting any global shutter captures done. It turned out to be good to have serial monitor output in view. The router in vacation house is not good, the time to capture a frame toggles between below 200ms and above 1000ms. And in current state, implementation is fragile...
by HermannSW
Thu Aug 01, 2019 4:40 pm
Forum: ESP32 Arduino
Topic: Two ESP32-CAM synchronously streaming to PI4
Replies: 10
Views: 2231

Re: Two ESP32-CAM synchronously streaming to PI4

- Idea is to connect both ESP32 with a wire and trigger an interrupt to capture synchronously the picture. - Adding fb = esp_camera_fb_get() to the interrupt routine causes a watchdog error. - I don't understand well how the server routine works, so no idea how to get this synchronously to the inte...
by HermannSW
Thu Jul 25, 2019 6:02 pm
Forum: ESP32 Arduino
Topic: ESP32 Remote Control
Replies: 17
Views: 4771

Re: ESP32 Remote Control

> 1) Are you sending control commands for the first examples over the internet? > No, in WLAN of home. > 2) Either using Arduino IDE or Micropython, i cant figure out how to send data to esp32 over internet. > WIth the CameraWebServer example there runs a webserver on the EPS32-CAM module. Just do G...
by HermannSW
Wed Jul 24, 2019 12:05 am
Forum: ESP32 Arduino
Topic: ESP32 Remote Control
Replies: 17
Views: 4771

Re: ESP32 Remote Control

What is the best way to control ESP32 remotely, without using any third-party software? You are posting your question in ESP32 Arduino forum. For Arduino CameraWebServer example is a good basis of remote control via Wifi as Agree007 stated. You can use the ESP32-CAM module for "ESP32 CAM for FPV an...

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