The code builder at https://examples.blynk.cc/ doesn’t list the ESP32/Wiznet hardware combination.
Does anyone have a basic working sketch?
That seems a very off hardware combination.
Do you have links to be ESP32 board and the W5100 “shield” that you’re planning to use?
Pete.
Ethernet shield https://docs.arduino.cc/retired/shields/arduino-ethernet-shield-without-poe-module
ESP32 https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf
The Espressif data sheet doesn’t tell me anything about the particular ESP32 board you’re planning to use.
Unless it has some weird Arduino Uno form factor then the Arduino Ethernet shield won’t work as a shield, it will need to be manually wired to the ESP32 and how you choose to do that will impact on the outcome.
Do you actually have this setup working without Blynk, using the shield to provide internet access to the ESP32? If so, sharing your wiring setup and working sketch would be a good start.
Is there any reason why you’re using Ethernet rather than the built-in WiFi capabilities of the ESP32?
Pete.
This is the board ESP32-DevKitC Board I Espressif
I have not attempted to get this working.
The first step is to find out if Blynk works with this configuration, hence my original question.
Wired communication is more reliable than wireless therefore my goal is to use ethernet.
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Agreed, but those Uno Ethernet shields are very poor quality, even when used as designed.
If I was going to go for something like the Olimex board because t(en you’ve removed some of the complexity from the physical setup.
If I was going to go for an ESP32 Ethernet system then is look at something like the Olimex boards and use the native network drivers and manually manage the internet connection, then use Blynk.config and Blynk.connect rather than Blynk.begin.
I guess the same option is available with your proposed hardware, but the first step would be to get them connected to the internet without Bl6nk, as I already suggested.
Pete.
The Olimex board does not appear on the list at examples.blynk.cc
Do you have an example sketch that works with it?
Pete.
If there is no example sketch, then how do you know that your solution works?
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If the device can connect to the internet and run C++ then you’re going to be able to establish a connection to the Blynk server via that internet connection.
But the only way to prove this is to buy one of these devices and try it.
Pete.
I’m not going to spend any money unless I can first find a working example sketch.
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