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The ESP8266 is a low-cost Wi-Fi chip/module with UART connections and a built-in TCP/IP stack.

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Rahul B
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Rahul B
Asked: August 17, 2022In:
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Hi, I plan to run an ESP32 with a 8 channel relay board and 5 DHT22. The DHTs are connected via long wire( perhaps 20m?). I run a analogous setup with AM2301 and ESP8266. Now I learned that the DHT22 ...Read more

Hi,
I plan to run an ESP32 with a 8 channel relay board and 5 DHT22.
The DHTs are connected via long wire( perhaps 20m?). I run a analogous setup with AM2301 and ESP8266.
Now I learned that the DHT22 is recommended to run at 5v, but the ESP32 GPIOs aren’t( officially?) 5V tolerant.
So my idea was to add two a position shifter to my setup. Is this the recommended way? Because I see a lot of post, where people just connect the 5V data pin to the GPIOs.

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  1. Avs Mohan

    We suggest you to use level shifter, direct connection maybe work for a short-term test, but we could not guarantee long-term functionality.

    We suggest you to use level shifter, direct connection maybe work for a short-term test, but we could not guarantee long-term functionality.
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Anonymous
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Anonymous
Asked: May 17, 2022In:
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Do ESP8266/ESP32/ESP32-S2 support Web/Soft AP provisioning?

Do ESP8266/ESP32/ESP32-S2 support Web/Soft AP provisioning?

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espesp32esp32-s2esp8266espressifsoftapWeb/Soft AP
  1. nakhtar

    Yes. For ESP8266, please refer to example ESP8266 softap_prov. For ESP32/ESP32-S2, please refer to example ESP32/ESP32-S2 wifi_prov_mgr.

    Yes. For ESP8266, please refer to example ESP8266 softap_prov. For ESP32/ESP32-S2, please refer to example ESP32/ESP32-S2 wifi_prov_mgr.

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