esp32-s3-super-mini

arduino ide

Board - ESP32C3 Dev Module
Port - /dev/ttyACM0
USB CDC on Boot - enabled
JTAG Adapter - Integrated USB JTAG

pins

    cable up
    pcb with chip up

Left	mode	value
5
6
7
8
9
10
20
21

Right	mode	value
5v
g
3.3
4
3
2
1
0

setting up the board for loading

Entering download mode:
Press and hold the BOOT button of ESP32C3,
then press the RESET button,
release the RESET button, and then release the BOOT button

at this time, ESP32C3 will enter the download mode.

(You need to re-enter the download mode every time you connect,
sometimes you press it once,
the port is unstable and will disconnect,
you can judge it by the port recognition sound)

Product Parameters

Powerful CPU: ESP32-C3, 32-bit RISC-V single-core processor, running at up to 160 MHz
WiFi: 802.11b/g/n protocol, 2.4GhHz, supports Station mode, SoftAP mode, SoftAP+Station mode, mixed mode
Bluetooth: Bluetooth 5.0
Ultra-low power consumption: Deep sleep power consumption is about 43μA
Rich board resources: 400KB SRAM, 384KB ROM, built-in 4Mflash.
Chip model: ESP32C3FN4
Ultra-small size: as small as a thumb (22.52x18mm) Classic form factor, suitable for wearable devices and small projects
Robust security features: Cryptographic hardware accelerator supporting AES-128/256, hashing, RSA, HMAC, digital signature, and secure boot
Rich interfaces: 1xI2C, 1xSPI, 2xUART, 11xGPIO (PWM), 4xADC
Single-sided components, surface mount design
Onboard LED blue light:GPIO8 Pinout

useful examples

https://www.nologo.tech/product/esp32/esp32c3SuperMini/

use Chrome or Chromium to translate Chinese to English

Digital Pin

// define led according to pin diagram
int led = 8;

void setup() {
  // initialize digital pin led as an output
  pinMode(led, OUTPUT);
}

void loop() {
  digitalWrite(led, HIGH);   // turn the LED on 
  delay(1000);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off
  delay(1000);               // wait for a second
}

Digital PWM

int ledPin = 8;    // LED connected to digital pin

void setup() {
  // declaring LED pin as output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // fade in from min to max in increments of 5 points:
  for (int fadeValue = 0 ; fadeValue <= 255; fadeValue += 5) {
    // sets the value (range from 0 to 255):
    analogWrite(ledPin, fadeValue);
    // wait for 30 milliseconds to see the dimming effect
    delay(30);
  }

  // fade out from max to min in increments of 5 points:
  for (int fadeValue = 255 ; fadeValue >= 0; fadeValue -= 5) {
    // sets the value (range from 0 to 255):
    analogWrite(ledPin, fadeValue);
    // wait for 30 milliseconds to see the dimming effect
    delay(30);
  }
}

Analog Pin

const int sensorPin = A5;
const int ledPin =  8; 

void setup() {
  pinMode(sensorPin, INPUT);  // declare the sensorPin as an INPUT
  pinMode(ledPin, OUTPUT);   // declare the ledPin as an OUTPUT
}

void loop() {
  // read the value from the sensor:
  int sensorValue = analogRead(sensorPin);
  // turn the ledPin on
  digitalWrite(ledPin, HIGH);
  // stop the program for <sensorValue> milliseconds:
  delay(sensorValue);
  // turn the ledPin off:
  digitalWrite(ledPin, LOW);
  // stop the program for for <sensorValue> milliseconds:
  delay(sensorValue);
}