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ESP8266: Difference between revisions

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==External links==
==External links==
* [https://en.wikipedia.org/wiki/ESP8266 ESP8266] on Wikipedia
* [https://en.wikipedia.org/wiki/ESP8266 ESP8266] on Wikipedia
* [https://www.espressif.com/sites/default/files/documentation/esp8266-technical_reference_en.pdf ESP8266 Technical Reference]]
* [https://www.espressif.com/sites/default/files/documentation/esp8266-technical_reference_en.pdf ESP8266 Technical Reference]


[[CATEGORY: Hardware]]
[[CATEGORY: Hardware]]

Revision as of 05:39, 26 November 2022

Pinout for the NodeMCU v1

A series of 32-bit microcontroller units from Espressif, followed by the ESP32. The first generation of the NodeMCU SoC was based around ESP8266.

Notes

  • There is only one (10-bit) ADC, and it reports values between [0, 1], not [0, 3.3]. This is not a scaling--the input voltage should not exceed 1V.
    • This is not true for e.g. the NodeMCU, which applies a divider network to scale the 3.3V down to 1V. This allows supplying 3.3V to the external device.
    • On the NodeMCU, this ADC can read the battery voltage instead of a connected external device. This is set in firmware.

External links