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SoC

System on a Chip

  • Atmel (Microchip)
    • AVR
      • ATtiny85
        • DigiSpark
  • STMicroelectronics
  • Espressif
    • ESP8266 (WiFi)
      • ESP-01
      • ESP-02
      • ...
      • ESP-12
    • ESP8285 = ESP8266 + 1MiB Flash
    • ESP32 (WiFi + Bluetooth)

Development board​

Arduino​

STM​

Espressif​

ESP8266WiFiESP-01 ~ ESP-12
ESP32WiFi + Bluetooth

Raspberry Pi​

  • System: Linux

USB to UART​

Interface​

  • UART (Universal Asynchronous Receiver Transmitter)
    • TTL (Transistor–Transistor Logic)
  • SPI (Serial Peripheral Interface)
  • I²C / I2C (Inter-Integrated Circuit)