Search found 4 matches

by wolf70
Fri Jun 30, 2023 7:35 am
Forum: Hardware
Topic: ESP32 - 3v3 Power
Replies: 2
Views: 2566

ESP32 - 3v3 Power

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 x KY...
by wolf70
Mon Aug 15, 2022 7:15 am
Forum: Hardware
Topic: ESP32 - DHT22 - Long Cable
Replies: 1
Views: 1297

ESP32 - DHT22 - Long Cable

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 a...
by wolf70
Wed Jul 15, 2020 6:08 am
Forum: ESP32 Arduino
Topic: ESP32 PINs in PlattformIO
Replies: 0
Views: 2622

ESP32 PINs in PlattformIO

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 PlattformI...
by wolf70
Mon Jul 13, 2020 8:20 am
Forum: Hardware
Topic: ESP32 Versions
Replies: 2
Views: 4516

ESP32 Versions

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