ESP-01 (ESP8266) Wireless WiFi Transceiver

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ESP8266 is a highly integrated chip designed for the needs of a new connected world. It offers a complete and self-contained Wi-Fi networking solution, allowing it to either host the application or to offload all Wi-Fi networking functions from another application processor.

Connect your next Arduino project with an adorable microcontroller at a very affordable price! This WI-Fi module is part of ESP8266 series which is a high-performance wireless System On a Chip (SOC). It is designed for minimal space requirement and offers a complete and standalone WI-Fi networking solution at the lowest possible cost. It can be used to host the application or to offload Wi-Fi networking functions from another application processor.
ESP-01 is one of the most popular Wi-Fi modules in the market that have onboard printed antenna and header block for easy access to pin-outs. It has 2 GPIO Pins (GPIO 0 and GPIO 2). Is has a small form factor (15mm x 15mm) and fits nicely in compact spaces. The module comes with one of the different version of the AT firmware which allows it to work effortlessly with platforms like Arduino.



  • 802.11 b/g/n
  • Integrated low power 32-bit MCU
  • Integrated 10-bit ADC
  • Integrated TCP/IP protocol stack
  • Integrated TR switch, balun, LNA, power amplifier and matching network
  • Integrated PLL, regulators, and power management units
  • Supports antenna diversity
  • Wi-Fi 2.4 GHz, support WPA/WPA2
  • Support STA/AP/STA+AP operation modes
  • Support Smart Link Function for both Android and iOS devices
  • Support Smart Link Function for both Android and iOS devices
  • SDIO 2.0, (H) SPI, UART, I2C, I2S, IRDA, PWM, GPIO
  • STBC, 1×1 MIMO, 2×1 MIMO
  • A-MPDU & A-MSDU aggregation and 0.4s guard interval
  • Deep sleep power <10uA, Power-down leakage current < 5uA
  • Wake up and transmit packets in < 2ms
  • Standby power consumption of < 1.0mW (DTIM3)
  • +20dBm output power in 802.11b mode
  • Operating temperature range -40C ~ 125C
  • 2 GPIO (0 and 2)
  • Wifi b/g/n support



  • Wi-Fi Parameters
    • Wi-Fi Protocols: 802.11 b/g/n
    • Frequency Range: 2.4GHz-2.5GHz (2400M-2483.5M)
  • Hardware Parameters
    • Peripheral Bus: UART/HSPI/I2C/I2S/Ir Remote Control
    • Operating Voltage: 3.0~3.6V
    • Operating Current: Average value: 80mA
    • Operating Temperature Range: -40°~125°
    • Ambient Temperature Range: Normal temperature
    • Package Size: 14.3mm*24.8mm*3mm
  • Software Parameters
    • Wi-Fi mode: station/softAP/SoftAP+station
    • Security: WPA/WPA2
    • Encryption: WEP/TKIP/AES
    • Firmware Upgrade: UART Download / OTA (via network) / download and write firmware via host
    • Software Development: Supports Cloud Server Development / SDK for custom firmware development
    • Network Protocols: IPv4, TCP/UDP/HTTP/FTP
    • User Configuration: AT Instruction Set, Cloud Server, Android/iOS App
  • Serial/UART baud rate: 115200 bps
  • Input power: 3.3V
  • I/O voltage tolerance: 3.6V Max
  • Flash Memory Size: 8Mbit external QSPI flash memory (1MByte)
  • WiFi security modes: WPA, WPA2
  • Weight: 1.5g
  • Dimensions: 14.3 x 24.8mm



  • 1 x ESP8266 ESP-01 Remote Serial Port Wi-Fi Wireless Module

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