Hi,

my current heating control is based on:
- Wemos D1 Mini
- 8 x Channel Relay Board
- 5 x DHT22 / AM2301

Because I need to add more sensors, I want to replace the Wemos D1 Mini with a ESP32.
Therefore I bought this board:
https://de.aliexpress.com/item/1005004387911208.html

I want to add:
- 2 ...

Hi,
I plan to run an ESP32 with a 8 channel relay board and 5 DHT22.
The DHTs are connected via long cable (maybe 20m?). I run a similar setup with AM2301 and ESP8266.
Now I learned that the DHT22 is recommended to run at 5v, but the ESP32 GPIOs are not (officially?) 5V tolerant.
So my idea was to ...

Hi,

I have a ESP32 DEVKIT from AZDelivery: https://cdn.shopify.com/s/files/1/1509/1638/files/ESP_-_32_NodeMCU_Developmentboard_Pinout_Diagram.jpg?4479111012146266271

Now I try to create a little sketch where I use a Nokia 5110 Display.
In PlattformIO I selected the DOIT ESP32 DEVKIT V1 in ...

Hello,

what are the differences between the different versions of ESP32 DevKit?
It seems in germany you can get V1 and V4. I found a tech spec pdf where V4 was listed with 4MB flash size.
Is this correct?
If not I would stick to V1.
cu and thx in adavance