1
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Automating Serial Monitor / Execute Serial Monitor Command without CMD input
You're going to have to write a piece of software on your computer with whatever is your favorite language, and run it, connected to the proper serial port. I do this a lot in applications that ...
- 1,573
1
vote
Connect to wifi works only without password (Problem around WPA security)
Solution, I'm using an old Freebox, which has only Open or WPA security,
Just add : WiFi.setMinSecurity(WIFI_AUTH_WPA_PSK); to allow connection to my router.
For people with WEP security, just use ...
- 133
1
vote
PubSubClient hanging on ESP32C3
The short form of the below is something like: "After calling .beginPublish(), call .endPublish() before making a call to either .publish() or .beginPublish().
We don't have your actual code. ...
- 4,980
1
vote
Accepted
PubSubClient constructor parameter type mismatch
The issue you're encountering with the PubSubClient constructor in Arduino is related to how you're passing the WiFiClient object. You're currently using a pointer (WiFiClient *wifi), but the ...
- 128
1
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Can I use SPI-related pins as a Digital Output?
From the schematics, I can see that IO2 is for the board's blue LED. So that's probably your first problem... From this PDF, I see that IO21 is VSPIHD, Hold for Flash chips. No good. IO16 is HS1_DATA4,...
- 1,573
1
vote
Accepted
ESP32 cannot serial monitor
The GPIO1 pin you are trying to use with const int vavle = 1; ... pinMode(vavle, OUTPUT); is the same pin that carries serial data to the PC.
From the pinout:
Their schematic link is broken, but if ...
- 4,980
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