ESP32: Difference between revisions

Latest revision as of 21:29, 31 October 2024

A series of 32-bit microcontroller unit from Espressif, the successor to their ESP8266.

The ESP32-S3 is a fantastic little update to the classic ESP32. Some notes:

Powering via 5V USB is recommended.
Voltage on GPIO47 and GPIO48 is only 1.8 (V_SPI), unlike the other pins (3.3, V_DD).
There are no default I²C pins. All GPIOs can be used with either of the two controllers with no penalty.
Some devkits require the two RGB pads to be shorted before their WS2812 RGB LED can be used
- I suspect this is because the WS2812 can damage the eyes if looked at directly? Unsure.
- Version 1.0 of the DevKitC had the WS2812 on IO48; Version 1.1 has it on IO38.

@@ Line 1: / Line 1: @@
-A 32-bit microcontroller unit from [https://www.espressif.com/en/products/socs/esp32 Espressif].
+A series of 32-bit microcontroller unit from [https://www.espressif.com/en/products/socs/esp32 Espressif], the successor to their [[ESP8266]].
+==ESP32-S3==
+The ESP32-S3 is a fantastic little update to the classic ESP32. Some notes:
+* Powering via 5V USB is recommended.
+* Voltage on GPIO47 and GPIO48 is only 1.8 (V<sub>SPI</sub>), unlike the other pins (3.3, V<sub>DD</sub>).
+* There are no default I<sup>2</sup>C pins. All GPIOs can be used with either of the two controllers with no penalty.
+* Some devkits require the two RGB pads to be shorted before their WS2812 RGB LED can be used
+** I suspect this is because the WS2812 can damage the eyes if looked at directly? Unsure.
+** Version 1.0 of the DevKitC had the WS2812 on IO48; Version 1.1 has it on IO38.
+==External links==
+* [https://en.wikipedia.org/wiki/ESP32 ESP32] on Wikipedia
 [[CATEGORY: Hardware]]