Search found 74 matches

by GeorgeFlorian1
Thu Jun 13, 2019 9:22 am
Forum: ESP32 Arduino
Topic: [SOLVED] I'm wondering if the ESP32 can call a method right before it crashes
Replies: 3
Views: 161

Re: I'm wondering if the ESP32 can call a method right before it crashes

ESP_Sprite wrote:
Wed Jun 12, 2019 10:48 am
No. A crash per definition means the execution environment is unstable. If the ESP32 could happily continue running, there would be no reason for it to crash/reboot.
I thought so. Thank you !
by GeorgeFlorian1
Wed Jun 12, 2019 10:32 am
Forum: ESP32 Arduino
Topic: [SOLVED] I'm wondering if the ESP32 can call a method right before it crashes
Replies: 3
Views: 161

[SOLVED] I'm wondering if the ESP32 can call a method right before it crashes

Hello ! I am playing around with me-no-dev's ESPAsyncWebServer library and it doesn't work all the time. If the ESP crashes for some reason, there's a chance that the WebServer will not work on the next boot, so I have to manually reset by pressing the EN Button. That's why I was wondering if I can ...
by GeorgeFlorian1
Fri Jun 07, 2019 2:36 pm
Forum: ESP32 Arduino
Topic: [SOLVED] I2C LCD 2004A displays gibberish.
Replies: 2
Views: 91

Re: I2C LCD 2004A displays gibberish.

Soooo.. the issue was caused by the pins not making contact.
I've properly soldered them and not it works wonders.
by GeorgeFlorian1
Fri Jun 07, 2019 1:50 pm
Forum: ESP32 Arduino
Topic: [SOLVED] I2C LCD 2004A displays gibberish.
Replies: 2
Views: 91

[SOLVED] I2C LCD 2004A displays gibberish.

Hello ! I am trying to use a LCD Display 20x04 with a DevKitV4 Wrover-B, but I am having no luck. I have followed this link: https://randomnerdtutorials.com/esp32-esp8266-i2c-lcd-arduino-ide/ SDA to GPIO 21 SCL to GPIO 22 I've used this library: https://github.com/johnrickman/LiquidCrystal_I2C And h...
by GeorgeFlorian1
Thu Jun 06, 2019 9:31 am
Forum: General Discussion
Topic: Where do I connect a GPS to a ESP32 Wrover Module if I don't have RX2 and TX2 ?
Replies: 5
Views: 213

Re: Where do I connect a GPS to a ESP32 Wrover Module if I don't have RX2 and TX2 ?

There is a whole section on it in the technical reference manual. Most peripheral drivers automatically support it either with a function that takes pin numbers as an input or a structure that has values for them. Even Arduino https://github.com/espressif/arduino-esp32/blob/7d7824701fe5e22f08555d3e...
by GeorgeFlorian1
Wed Jun 05, 2019 3:14 pm
Forum: General Discussion
Topic: Where do I connect a GPS to a ESP32 Wrover Module if I don't have RX2 and TX2 ?
Replies: 5
Views: 213

Re: Where do I connect a GPS to a ESP32 Wrover Module if I don't have RX2 and TX2 ?

WiFive wrote:
Wed Jun 05, 2019 1:42 pm
You must know by now that most peripherals can be remapped to any pin using the gpio matrix.
I couldn't find any documentation on where is the GPIO Matrix or how to use it.
Can you please point me in the right direction ?
by GeorgeFlorian1
Wed Jun 05, 2019 2:17 pm
Forum: ESP32 Arduino
Topic: How do I remap TX2 and RX2 to different pins ? There is no documentation whatsoever.
Replies: 1
Views: 96

How do I remap TX2 and RX2 to different pins ? There is no documentation whatsoever.

Hello ! I have a ESP32 Wrover-B DevKitV4 that has GPIO 16 and 17, meaning TX2 and RX2, NOT CONNECTED. But I need to use them with a GPS Module. I've just learned that I can remap the GPIOs. But I have no idea how. I couldn't find any documentation on where is the GPIO Matrix or how to use it and tha...
by GeorgeFlorian1
Wed Jun 05, 2019 2:03 pm
Forum: General Discussion
Topic: Where do I connect a GPS to a ESP32 Wrover Module if I don't have RX2 and TX2 ?
Replies: 5
Views: 213

Re: Where do I connect a GPS to a ESP32 Wrover Module if I don't have RX2 and TX2 ?

WiFive wrote:
Wed Jun 05, 2019 1:42 pm
You must know by now that most peripherals can be remapped to any pin using the gpio matrix.
Yeah, I don't.
I have never seen, nor heard of GPIO Matrix.

Care to explain more, please ?

Also, I feel like I should mention this: I never used ESP-IDF. I only used Arduino IDE and PlatformIO IDE.
by GeorgeFlorian1
Wed Jun 05, 2019 12:49 pm
Forum: General Discussion
Topic: Where do I connect a GPS to a ESP32 Wrover Module if I don't have RX2 and TX2 ?
Replies: 5
Views: 213

Where do I connect a GPS to a ESP32 Wrover Module if I don't have RX2 and TX2 ?

Hello ! I have a DEV KIT V4 ESP32 Wrover-B and a GY-GPS6MV2. I found this tutorial online: https://shopofthings.ch/gy-neo6mv2-esp32-gps-beispiel/ And I noticed that they are using a ESP32 Wroom-32 and that they've connected the GPS RX to ESP32 TX2 and the GPS TX to ESP32 RX2. I don't have RX2 and TX...
by GeorgeFlorian1
Tue May 14, 2019 2:06 pm
Forum: ESP32 Arduino
Topic: Getting `[E][WiFiGeneric.cpp:658] hostByName(): DNS Failed` randomly
Replies: 0
Views: 117

Getting `[E][WiFiGeneric.cpp:658] hostByName(): DNS Failed` randomly

Hello ! I am using a HTTP Client inside loop to check for the body of a URL. Today the ESP crashed and restarted. After the restart it connected to the WiFi using the provided SSID and Password, so using DHCP. But it behaved like it did not connect. The web-pages that I have on the ESPAsyncWebServer...

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