This ESP8266 Serial Port To Wi-Fi Module, FL-M1S serial transceiver module, based on ESP8266 SoC with an integrated TCP/IP protocol stack It can either host the application or offload all Wi-Fi networking functions from another application processor.
ESP8266 has powerful onboard processing and storage capabilities allowing it to integrate with sensors and other devices through GPIOs with minimal development up-front and minimal loading during runtime.
Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including the front-end module, is designed to occupy minimal PCB area.
Add Wi-Fi connectivity to your projects quickly, easily and painlessly! The ESP8266 is a highly integrated chip designed for the needs of any IoT project. It offers a complete and self-contained Wi-Fi networking solution. Allowing it to either host a small application or to offload all Wi-Fi networking functions from another MCU.
This module is a WiFi serial transceiver module, based on ESP8266 SoC with an integrated TCP/IP protocol stack. As a TTL ‘Serial to Wireless Internet’ device, this module easily interfaces with typical microcontrollers (MCU) to communicate via TTL serial to instantly add Wi-Fi connectivity. It runs off 3.3V, and can draw almost 500mA of current for up to a really impressive +19.5dBm output power in 802.11b mode! That gives this module a range over a hundred meters!
ESP8266 has powerful onboard processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during run-time. Its high degree of on-chip integration allows for minimal external circuitry.
Features :
- SDIO 2.0, SPI, UART
- Integrated RF switch, balun, 24dBm PA, DCXO, and PMU
- It equips integrated RISC processor, on-chip memory and external memory interfaces
- Featuring integrated MAC/baseband processors
- I2S interface for high fidelity audio applications
- On-chip low-dropout linear regulators for all internal supplies
- Integrated WEP, TKIP, AES, and WAPI engines
- Wi-Fi Direct (P2P), soft-AP
- Integrated TCP/IP protocol stack
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated PLL, regulators, DCXO and power management units
- Power down leakage current of <10uA
- Integrated low power 32-bit CPU could be used as an application processor
- SDIO 1.1/2.0, SPI, UART
- STBC, 1×1 MIMO, 2×1 MIMO
- A-MPDU & A-MSDU aggregation & 0.4ms guard interval
- Wake up and transmit packets in < 2ms
- Standby power consumption of < 1.0mW (DTIM3)
Package Includes :
1 x ESP8266 Serial Port To Wi-Fi Module, FL-M1S
Tutorial :
About Esp8266 Serial Port To Wi-fi Module
ESP8266 Serial Port To Wi-Fi Module, FL-M1S is available at Zbotic, India’s trusted electronics and robotics store. Manufactured by Generic, this product is designed for hobbyists, students, and professionals working on electronics, robotics, and DIY projects.
Product Details
- Brand: Generic
- SKU: AI1350
- Category: Other ESP WIFI Modules
Why Buy from Zbotic?
Zbotic offers a wide range of electronics components, development boards, sensors, and robotics parts. All products are quality-checked and shipped within 24 hours. Free shipping on qualifying orders. We offer COD (Cash on Delivery) and secure online payment options. Our customer support team is available to help with technical queries about Esp8266 Serial Port To Wi-fi Module and other products.
Applications
Esp8266 Serial Port To Wi-fi Module can be used in a variety of projects including Arduino projects, Raspberry Pi builds, drone assembly, 3D printing, IoT applications, and educational experiments. Whether you are a beginner or an advanced user, this component provides the reliability and performance you need. Order your Esp8266 Serial Port To Wi-fi Module today and start building.
ESP8266 Serial Port To Wi-Fi Module, FL-M1S Overview
The ESP8266 Serial Port To Wi-Fi Module, FL-M1S is a compact wireless transceiver based on the ESP8266 SoC. It provides a fully integrated TCP/IP stack and high-power Wi-Fi connectivity, enabling you to add Wi-Fi networking to microcontroller projects via a simple UART interface.
Key Features of ESP8266 Serial Port To Wi-Fi Module, FL-M1S
- Supports 802.11 b/g/n standards with Wi-Fi Direct (P2P) and soft-AP modes
- Built-in TCP/IP protocol stack for standalone or host-offload operation
- Integrated RF front-end: TR switch, balun, LNA, power amplifier and matching network
- High output power: up to +19.5 dBm in 802.11b mode for extended range
- Ultra-low power down leakage current <10 µA for battery-powered designs
- On-chip 32-bit CPU, PLL, regulators, DCXO and power management units reduce external components
- Genuine product with fast shipping directly from Zbotic’s warehouse
Applications and Use Cases
- Logging sensor data remotely via UART to cloud services
- Home automation: control relays, lights and appliances over Wi-Fi
- Wireless serial bridging for legacy RS-232/TTL devices
- DIY IoT gadgets: smart thermostats, security cameras and environmental monitors
- Industrial telemetry: send machine metrics to dashboards in real time
- Prototyping Wi-Fi enabled wearables and portable electronics
How to Use ESP8266 Serial Port To Wi-Fi Module, FL-M1S
Connect the module’s VCC and GND to a 3.3 V supply, then wire the TX/RX pins to your MCU’s UART lines. Configure the baud rate (default 115200 bps) and use AT commands or custom firmware to join an access point or create a soft-AP. Power-down control and GPIO pins allow you to manage low-power modes and interface with sensors or actuators directly.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What voltage does the FL-M1S module require?
The ESP8266 FL-M1S module operates at 3.3 V. Ensure you use a stable regulator capable of supplying at least 300 mA peak during Wi-Fi transmissions.
Can I run custom firmware on the FL-M1S?
Yes. Although it ships with AT command firmware, you can flash NodeMCU, Arduino, MicroPython or other ESP8266-compatible firmware via the UART bootloader pins.
How do I reduce power consumption in battery projects?
Use the module’s power-down pin (CH_PD) and deep-sleep AT commands. Deep-sleep mode reduces leakage current below 10 µA, ideal for intermittent data-logging applications.
Technical Specifications
| Model | ESP8266 |
|---|---|
| Interface / Protocol | Wi-Fi |
| SKU | AI1350 |
| Weight | 0.05 kg |
| Availability | Out of Stock |
Applications & Use Cases
The ESP8266 Serial Port To Wi-Fi Module, FL-M1S is a versatile other esp wifi modules used across a wide range of applications including WiFi connectivity for microcontrollers, IoT sensor nodes, remote monitoring, OTA firmware updates, and cloud-connected devices.
Common use cases:
- Adding WiFi to an existing Arduino project
- Building a cloud-connected weather station
- Enabling remote firmware updates
This product is ideal for IoT developers and electronics hobbyists.
Technical Tip: ESP-WROOM-32 modules need proper decoupling capacitors and antenna clearance for reliable WiFi performance.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components


Shruti Patil –
Good ESP8266 Serial Port To Wi-Fi Module,. WiFi works well. Sometimes needs a reset but overall solid.
Kavya Goyal (verified owner) –
Great quality ESP8266 Serial Port To Wi-Fi Module,. Flashed with ESPHome and it works beautifully.
Sneha Agarwal –
This ESP8266 Serial Port To Wi-Fi Module, is amazing for home automation. Connected all my smart devices easily.
Sonali Kohli (verified owner) –
This ESP8266 Serial Port To Wi-Fi Module, is a beast for the price. Running a web server on it with no issues.
Aisha Sharma (verified owner) –
Superb ESP8266 Serial Port To Wi-Fi Module,! Using it for my weather monitoring station. WiFi range is impressive.
Jai Dhillon –
This ESP8266 Serial Port To Wi-Fi Module, is amazing for home automation. Connected all my smart devices easily.
Karan Mishra (verified owner) –
Outstanding ESP8266 Serial Port To Wi-Fi Module,! Programmed it with Arduino IDE. All features work as documented.
Tanya Pandey (verified owner) –
Love this ESP8266 Serial Port To Wi-Fi Module,. Built a smart switch with it. Works with Home Assistant perfectly.
Jatin Singh (verified owner) –
Excellent ESP8266 Serial Port To Wi-Fi Module,! WiFi connectivity is strong and stable. Perfect for IoT projects.
Gauri Singh (verified owner) –
Excellent for smart home projects. This ESP8266 Serial Port To Wi-Fi Module, connects reliably to my router.
Prateek Shah (verified owner) –
Love this ESP8266 Serial Port To Wi-Fi Module,. Built a smart switch with it. Works with Home Assistant perfectly.
Piyush Desai (verified owner) –
Great quality ESP8266 Serial Port To Wi-Fi Module,. Flashed with ESPHome and it works beautifully.
Pooja Iyer (verified owner) –
Outstanding ESP8266 Serial Port To Wi-Fi Module,! Programmed it with Arduino IDE. All features work as documented.
Diya Sethi (verified owner) –
Great ESP8266 Serial Port To Wi-Fi Module,. OTA updates work perfectly. Using 5 of these around my house.
Sarika Singh (verified owner) –
Great ESP8266 Serial Port To Wi-Fi Module,. OTA updates work perfectly. Using 5 of these around my house.
Neeraj Bhat (verified owner) –
Okay ESP8266 Serial Port To Wi-Fi Module,. Took time to figure out the pin mapping but functional.
Vikram Shah (verified owner) –
This ESP8266 Serial Port To Wi-Fi Module, is a beast for the price. Running a web server on it with no issues.
Hemant Kapoor (verified owner) –
Decent ESP8266 Serial Port To Wi-Fi Module,. Had to install CP2102 drivers but works fine after that.
Rishabh Banerjee (verified owner) –
Love this ESP8266 Serial Port To Wi-Fi Module,. Built a smart switch with it. Works with Home Assistant perfectly.
Shivam Dhillon –
Nice ESP8266 Serial Port To Wi-Fi Module, for IoT prototyping. Breadboard compatible which is a plus.
Ashish Arora (verified owner) –
This ESP8266 Serial Port To Wi-Fi Module, is amazing for home automation. Connected all my smart devices easily.
Amit Dave (verified owner) –
Great quality ESP8266 Serial Port To Wi-Fi Module,. Flashed with ESPHome and it works beautifully.
Rajesh Thakur (verified owner) –
Good ESP8266 Serial Port To Wi-Fi Module,. WiFi works well. Sometimes needs a reset but overall solid.
Shreyas Choudhury (verified owner) –
Superb ESP8266 Serial Port To Wi-Fi Module,! Using it for my weather monitoring station. WiFi range is impressive.
Sandhya Dhillon (verified owner) –
Superb ESP8266 Serial Port To Wi-Fi Module,! Using it for my weather monitoring station. WiFi range is impressive.