Search found 6 matches

by feklee
Sat Nov 16, 2019 11:00 am
Forum: Hardware
Topic: ESP32S: More than two SPI channels possible?
Replies: 0
Views: 295

ESP32S: More than two SPI channels possible?

In a test, I was successfully able to use SPI with pins: #define GPIO_MOSI 2 #define GPIO_MISO 12 #define GPIO_SCLK 14 #define GPIO_CS 15 However, I cannot run the camera in parallel with my own SPI communication. The problem are not the pins. Pins 2, 12, 14, and 15 are not used by the camera. The p...
by feklee
Fri Nov 15, 2019 10:19 am
Forum: ESP32 IDF
Topic: Program ESP32-CAM via FTDI without manual reset?
Replies: 0
Views: 172

Program ESP32-CAM via FTDI without manual reset?

When programming the ESP32-CAM with an FTDI, I proceed as follows: Connect IO0 to GND. Reset the ESP32-CAM. (by cutting power) Run: python2 $(which idf.py) -p /dev/ttyUSB0 flash --baud 2000000 Afterwards, to monitor output: Remove IO0 from GND. Reset the ESP32-CAM. (as above) Run: python2 $(which id...
by feklee
Mon Oct 28, 2019 10:33 pm
Forum: Hardware
Topic: ESP-EYE camera FOV?
Replies: 0
Views: 441

ESP-EYE camera FOV?

What's the field of view (FOV) of the OV2640 camera on the ESP-EYE?

Also helpful would be focal length and sensor size, the parameters from which the FOV can be calculated.
by feklee
Sat Oct 26, 2019 9:30 pm
Forum: ESP-WHO
Topic: Using Websockets + video stream?
Replies: 1
Views: 1043

Using Websockets + video stream?

From an ESP-EYE, I want to: Stream from the camera to the web server (as in the example application camera_web_server ). Face detection is not required. Connect to a Websocket server running on another computer to send messages. Can this be done at the same time? Concerning Websockets, I found that ...
by feklee
Wed Oct 23, 2019 1:39 pm
Forum: Hardware
Topic: Connecting ESP-EYE to 5V 328P? (Arduino)
Replies: 1
Views: 331

Re: Connecting ESP-EYE to 5V 328P? (Arduino)

Well I guess it isn't. So I will use a level shifter (unless I'm missing something and there is a simpler way to connect to a 5V Arduino).
by feklee
Tue Oct 22, 2019 9:34 am
Forum: Hardware
Topic: Connecting ESP-EYE to 5V 328P? (Arduino)
Replies: 1
Views: 331

Connecting ESP-EYE to 5V 328P? (Arduino)

What options are there?

I assume the easiest way is to use SPI with a level shifter (unless the ESP-EYE's SPI port is 5V tolerant).

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