Search found 22 matches

by kian79
Sun Jul 05, 2020 11:31 am
Forum: General Discussion
Topic: How to read a file hosted on website?
Replies: 1
Views: 206

How to read a file hosted on website?

Hi all, I would like to work on a project where I can use the ESP32 to connect to a website and download a .h file (containing a large image array) to be displayed on a TFT LCD. I don't have much idea on how to get started. I am able to interface the ESP32 to the TFT LCD and I can display an image p...
by kian79
Fri Apr 24, 2020 10:58 am
Forum: ESP32 Arduino
Topic: How to Disable DAC
Replies: 1
Views: 941

How to Disable DAC

Hi all, I need to use IO25 as a digital output pin, but it seems like it is a DAC output by default. How do I disable DAC function? I tried the following code but its not working: #include <driver/dac.h> // the setup function runs once when you press reset or power the board void setup() { // initia...
by kian79
Wed Apr 08, 2020 1:08 am
Forum: Hardware
Topic: Question about Wake from Deep Sleep using EXT1
Replies: 1
Views: 1461

Question about Wake from Deep Sleep using EXT1

Hi, The ESP32 can be woken up from deep sleep using EXT1. It is described as follows: This wake up source allows you to use multiple RTC GPIOs. You can use two different logic functions: 1. Wake up the ESP32 if any of the pins you’ve selected are high; 2. Wake up the ESP32 if all the pins you’ve sel...
by kian79
Mon Mar 23, 2020 3:53 am
Forum: Hardware
Topic: ESP32 IO input pin 5V tolerant?
Replies: 1
Views: 1056

ESP32 IO input pin 5V tolerant?

Can I connect a voltage greater than VCC to a input pin? For example my ESP32 is running at 3.3V and I am putting 4.2V into the IO input it.

Right now, its reading the logic value correctly, but I don't know if is going to cause a problem over a long time.
by kian79
Mon Jan 06, 2020 1:34 am
Forum: ESP32 Arduino
Topic: ESP32 SimpleTime example
Replies: 0
Views: 371

ESP32 SimpleTime example

Hi all, I need to keep track of the current date and time and I am looking at the SimpleTime example for the ESP32. The example connects to Wifi and retrieve the current date and time from the ntpServer then disconnects. Then inside the main loop the printLocalTime function is called to print out th...
by kian79
Tue Nov 19, 2019 7:49 am
Forum: ESP IoT Solution
Topic: How to provision ESP32 based device to IOT hub?
Replies: 1
Views: 1595

How to provision ESP32 based device to IOT hub?

Hi all, I am a question about provisioning an ESP32 device to Microsoft Azure IOT hub (or any other IOT based cloud sevice). Basically, I am using MQTT to publish to a topic and subscribe a topic. I want to be able to upload sensor data to the cloud and also remotely control a device (through the cl...
by kian79
Tue Nov 19, 2019 6:55 am
Forum: General Discussion
Topic: ESP32 Camera Stream and Save to WebServer
Replies: 4
Views: 2180

Re: ESP32 Camera Stream and Save to WebServer

Thanks PeterR!
by kian79
Sat Oct 26, 2019 11:42 am
Forum: General Discussion
Topic: ESP32 Camera Stream and Save to WebServer
Replies: 4
Views: 2180

Re: ESP32 Camera Stream and Save to WebServer

Are there any examples/tutorials online that I can refer to? I don't know what is the correct google search keywords to use.
by kian79
Wed Oct 23, 2019 7:58 am
Forum: General Discussion
Topic: ESP32 Camera Stream and Save to WebServer
Replies: 4
Views: 2180

ESP32 Camera Stream and Save to WebServer

Hi all, I have a ESP-EYE and have tried the default Camer Web Server example on Arduino IDE. My question is, is it possible to save the video on the web server? My application is as follows: When a motion sensor is triggered, the ESP32 camera is activated and starts streaming to a webserver which re...
by kian79
Thu Jul 18, 2019 3:05 am
Forum: ESP32 Arduino
Topic: Using Timer Interrupt and Reload Timer
Replies: 1
Views: 3392

Using Timer Interrupt and Reload Timer

Hi all, I have setup a timer interrupt to trigger every 5 seconds. However if a button is pressed before 5 seconds is up, the timer should restart again. Is there a way to reload the timer without having to reinitalise the timer all over again? Currently only this works: Serial.println("Reload Timer...

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