Skip to product information

ESP-01 ESP8266 Serial WIFI Module

ESP-01 ESP8266 Serial WIFI Module

Regular price £3.72
Regular price £4.37Sale price £3.72
15% off RRP Sold out
Shipping calculated at checkout.
Sign Up For 10% Off Your First Order
American Express Apple Pay Diners Club Discover Google Pay Maestro Mastercard PayPal Shop Pay Union Pay Visa

Product Description: ESP-01 ESP8266 Module

The ESP-01 ESP8266 Module is a versatile and feature-rich wireless communication module, ideal for various Internet of Things (IoT) applications. It provides seamless Wi-Fi connectivity and integrates multiple interfaces, ensuring efficient integration into diverse projects. Below are the key features and specifications of this module:

Key Features:

  • Multi-Interface Support: Supports SDIO 2.0, SPI, and UART interfaces for flexible communication with other devices.
  • Compact Design: Comes in a 32-pin QFN package, optimizing space and efficiency.
  • Advanced RF Signal Processing: Features integrated RF switch, balun, 24dBm power amplifier, DCXO, and PMU for superior RF performance.
  • On-Chip Processing: Includes an on-chip RISC processor with memory interfaces for efficient data processing and external memory support.
  • Wi-Fi Communication: Integrated MAC/baseband processors ensure robust Wi-Fi communication with Quality of Service management.
  • High Fidelity Audio: Supports I2S interface for high fidelity audio applications.
  • Stable Power Supply: On-chip low-dropout linear regulators provide stable internal supply voltages.
  • Reliable Clock Signals: Utilizes a proprietary spurious-free clock generation architecture.
  • Secure Data Transmission: Built-in support for WEP, TKIP, AES, and WAPI encryption algorithms.
  • Efficient VoIP: Supports APSD for efficient VoIP applications.
  • Noise Cancellation: Patented spurious noise cancellation algorithm for SOC applications.
  • Bluetooth Co-existence: Provides a Bluetooth co-existence interface for smooth operation with Bluetooth devices.
  • Self-Calibrated RF: Ensures optimal performance without factory tuning or external RF components, reducing system cost.


  • Wi-Fi Standards: 802.11 b/g/n.
  • Communication Modes: Supports Wi-Fi Direct (P2P) and soft-AP modes.
  • Network Communication: Integrated TCP/IP protocol stack.
  • RF Components: Integrated TR switch, balun, LNA, power amplifier, and matching network.
  • Optimized Operation: Integrated PLLs, regulators, DCXO, and power management units.
  • Output Power: +19.5dBm in 802.11b mode.
  • Low Power Consumption: Power down leakage current less than 10uA.
  • CPU: Low power 32-bit CPU that can serve as an application processor.
  • Communication Interfaces: Supports SDIO 1.1/2.0, SPI, and UART.
  • Data Transmission: Supports STBC, 1x1 MIMO, and 2x1 MIMO; A-MPDU and A-MSDU aggregation with a 0.4ms guard interval.
  • Quick Wake-Up: Wake-up and packet transmission in less than 2ms.
  • Standby Power Consumption: Less than 1.0mW (DTIM3).

The ESP-01 ESP8266 Module is extensively used in IoT applications, home automation, smart devices, and other wireless communication projects that demand reliable Wi-Fi connectivity with low power consumption.

Power Supply:

  • Voltage: 3.0V ~ 3.6V
  • Current: >300mA

Current Consumption:

  • Continuous Transmission: Average: ~71mA, Peak: 300mA
  • Modem Sleep: ~20mA
  • Light Sleep: ~2mA
  • Deep Sleep: ~0.02mA

SPI Flash Memory:

  • Default: 8Mbit (1MB)


  • IO Port: 2

UART Baud Rate:

  • Support: 300 ~ 4608000 bps
  • Default: 115200 bps

Frequency Range:

  • 2412 ~ 2484MHz

Transmit Power:

  • 802.11b: 16±2 dBm (@11Mbps)
  • 802.11g: 14±2 dBm (@54Mbps)
  • 802.11n: 13±2 dBm (@HT20, MCS7)

Receiving Sensitivity:

  • CCK, 1 Mbps: -90dBm
  • CCK, 11 Mbps: -85dBm
  • 6 Mbps (1/2 BPSK): -88dBm
  • 54 Mbps (3/4 64-QAM): -70dBm
  • HT20, MCS7 (65 Mbps, 72.2 Mbps): -67dBm

This comprehensive module is an essential component for advanced IoT applications, providing reliable and efficient wireless communication.


Shipping Policy

- Free Shipping: We offer free Domestic shipping on all orders Over £25!
- UK Stock: Stocked in our UK Warehouse.
- Same-Day Dispatch: Orders placed before 3 PM will be dispatched on the same day.
- Tracked Service Upgrade: Orders over £20 will be automatically upgraded to a tracked service at no additional cost.
- Shipping Providers: We primarily ship via Royal Mail 48, but we reserve the right to use any provider and/or an equivalent service*.

Important Information:

- Delivery Address: Once your order is placed, we cannot change the delivery address. Please ensure the correct address is provided at checkout.
- Incorrect Address: If you realize you’ve provided the incorrect address, Contact us as soon as possible. We will assist you in canceling your order so you can reorder with the correct address.
- Post-Dispatch: Once your order has been dispatched, we are unable to cancel or change the shipping address. The buyer is responsible for any issues and costs related to incorrect shipping addresses. If there are issues with the delivery and the item is returned to us, a refund will be provided. We will not reship the item.

Returns Policy

We offer Free Domestic Returns on All Products.

If you are experiencing issues with our products, please contact us. We will do
everything we can to assist you. If this does not resolve your issue, you may
open a return request , and a return label will be

Please note:

To receive a refund, you MUST return the item.

The item MUST be returned within 60 Days of purchase.

The item MUST be returned in its original condition, including all packaging and accessories.

If the item is faulty, please clearly describe the issue you are experiencing. This helps us evaluate and process the return swiftly.

View full details