A minimal table to compare the Espressif's MCU families.
ESP8266 | ESP32 | ESP32-S2 | ESP32-S3 | ESP32-C3 | ESP32-C6 | |
---|---|---|---|---|---|---|
Announcement Date | 2014, August | 2016, September | 2019, September | 2020, December |
int holdPin = 4; // defines GPIO 4 as the hold pin (will hold ESP-12F enable pin high untill we power down) | |
#include <ESP8266WiFi.h> | |
const char* ssid = "Wifi_name"; // Enter the SSID of your WiFi Network. | |
const char* password = "Wifi_pass";// Enter the Password of your WiFi Network. | |
char server[] = "mail.smtp2go.com"; // The SMTP Server | |
WiFiClient espClient; | |
void setup() |