Esp32: Difference between revisions

Revision as of 23:46, 7 May 2023

I got some esp32-c3-devkitC-02

from the hardware schematic i seethe RGB LED is SK68XXMINI-HS

I used adafruit neopixel library to drive this RGB LED. it's one wire or i2c or something. Pin 8

talk to it via I2C

damn trying to get the boot flashed.

this is what I'm going on now:

board manager extras:

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_dev_index.json

old config:

https://dl.espressif.com/dl/package_esp32_index.json,
http://arduino.esp8266.com/stable/package_esp8266com_index.json

This page has some particulars:

so which pinds are for I2C SDA/SCL ?

Lots of conflicting docs.

I forced the issue like this:

void setup() {
  Wire.setPins(sda_pin, scl_pin);
  Wire.begin();
...
}

want to make the on board neopixel work? use the neopixel library and set pin to 8.

Here is a web server that exposes BME 280 sensors in a prometheus friendly way:

sparkfun board

aka WRL-18036

basedon ESP32-C3-MINI-1 chip

gotchas:

set I2C wires to pin 0 and pin1 , means pin 9 and 10 on the board


#define I2C_SDA 0
#define I2C_SCL 1

...
void setup()
{
  Wire.setPins(I2C_SDA, I2C_SCL);
  Wire.begin();
  ...
}