Esp8266 Esp-01 Datasheet High Quality 🌟

The ESP-01 uses an external SPI flash (typically 512KB or 1MB). The flash shares pins with some GPIOs internally, which means:

Unlike standard microcontrollers (like an ATmega328P), the ESP-01 usually ships with an pre-loaded. This allows the module to act as a "modem" for another microcontroller (like an Arduino) via UART. esp8266 esp-01 datasheet

| Parameter | Value | |-----------|-------| | Frequency range | 2.4 GHz – 2.5 GHz | | Protocols | 802.11 b/g/n (HT20) | | TX power | +19.5 dBm (max) | | RX sensitivity | -98 dBm (11b), -74 dBm (11n) | | WiFi stack | TCP/IP, UDP, HTTP, DNS, SNTP | The ESP-01 uses an external SPI flash (typically