Description
The ESP8266 Serial-to-WiFi adapter created by Espressif has seen a wide adoption as a cost-effective solution for IoT and WiFi-capable devices. This tiny-sized System On a Chip (SoC) includes an 80 MHz microcontroller with a full WiFi front-end (both as client and access point) as well as a full TCP/IP stack with DNS. Because the ESP8266 comes only in a Surface-Mount package, a few different vendors have developed modules labeled ESP-NN where NN are numbers ranging from 01 to 13 (at the time of this writing).
Although most ESP-NN modules are intended to be mounted on a PCB via castellated pins, the ESP-01 includes a set of 0.1in-spaced female pins that can be used to easily connect it to a solderless breadboard! Please note that because the ESP8266 doesn’t have a native USB interface, all ESP-NN modules need an external USB to Serial adapter (e.g., FTDI FT232 USB to Serial UART adapter) to receive data from a computer’s USB connection.
Features:
- Includes: 2×ESP-01 Serial to Wi-Fi module
- 6 GPIO (save for D0, every GPIO can be PWM, I2C (software), 1-wire)
- ESP-01 Wi-Fi module containing the ESP8266 IC
- PCB-mounted antenna
- Integrated TCP/IP protocol stack
- 8-pin female header socket
Specifications:
- Supported protocols: 802.11 b/g/n
- Serial/UART baud rate: 115200bps
- Input voltage: 3.3V
- Max I/O voltage: 3.6V
- Regular operation current draw: ~70mA
- Current draw (peak): ~300mA
- Power-down leakage current: <10µA
- Output power: +19.5dBm (802.11b)
- Flash Memory Size: 1MB (8Mbit)
- WiFi security modes: WPA, WPA2
- Module’s dimensions: 24.75mm x 14.5mm (0.974″ x 0.571″)
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