SKU: IOWC-1842
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ESP8285 ESP-M3 Ultra-Small WiFi Module w/ ESP8266 AT Firmware

₹259.00 (Inclusive of all taxes)
Out of Stock

The ESP8285 ESP-M3 is an ultra-compact 2.4GHz Wi-Fi SoC module based on the ESP8285 chip, fully compatible with ESP8266 AT command firmware for easy integration into IoT projects. It features a 32-bit Tensilica L106 processor, 1MB flash, and supports 802.11 b/g/n Wi-Fi for low-power wireless connectivity.

Features

  • Ultra-compact ESP8285 SoC module measuring just 20x16x3mm, ideal for space-constrained IoT devices.
  • Fully compatible with ESP8266 AT command firmware, enabling rapid development with existing codebases and tools.
  • Integrated 32-bit Tensilica L106 MCU running at 80 MHz (up to 160 MHz) with 1MB of onboard flash memory.
  • Supports 802.11 b/g/n Wi-Fi at 2.4GHz with WPA/WPA2/WPS security for robust network connectivity.
  • Provides versatile interfaces including UART, I2C, I2S, HSPI, PWM, GPIO, and a 10-bit ADC for sensor integration.

Out of stock

Description

The ESP8285 ESP-M3 module delivers a highly integrated Wi-Fi SoC solution tailored for the Internet of Things, balancing efficient power usage, compact design, and reliable performance. Its self-contained Wi-Fi networking capabilities allow it to function either as a standalone application processor or as a wireless slave to an external host microcontroller.

Built around the ESP8285 chip, the module operates on the 2.4GHz frequency band and supports modern Wi-Fi protocols including 802.11 b/g/n with WPA, WPA2-PSK, and WPS security. This enables secure, low-power wireless communication for connecting sensors, microcontrollers, and automation systems to local networks and the internet without complex wiring.

Key Features

  • Ultra-small form factor (20x16x3mm) for embedding into compact IoT and wearable devices.
  • Fully firmware-compatible with the popular ESP8266, allowing use of established AT command sets and development tools.
  • Integrated TCP/IP protocol stack simplifies network communication for sending data to cloud services or local servers.
  • Low-power design suitable for battery-powered applications in home automation and sensor networks.
  • Comprehensive peripheral set including I2C, I2S, HSPI, PWM, and multiple GPIOs for expanding functionality.
  • Onboard 10-bit high-precision ADC enables direct analog sensor readings without external components.
  • Supports advanced Wi-Fi features like P2P (Wi-Fi Direct) and multiple security suites (WEP, WPA, WPA2).
  • Wide operating temperature range (-40°C to +125°C) ensures reliability in harsh environmental conditions.

Applications

  • Smart home automation for lights, sockets, and appliance control.
  • Wireless sensor networks for environmental monitoring and data logging.
  • Wearable electronics and IoT devices requiring compact Wi-Fi connectivity.
  • Baby monitors, IP cameras, and wireless security ID tags.
  • Industrial wireless control and telemetry systems.
  • Mesh network nodes and wireless positioning beacons.

Technical Specifications

Microcontroller/SoCESP8285 (Tensilica L106 32-bit)
Wireless ProtocolWi-Fi 802.11 b/g/n
Frequency Range2.4 GHz
RF Transmit PowerNot Specified
Supply Voltage3.3V (Typical)
Operating CurrentNot Specified
InterfacesUART, I2C, I2S, HSPI, PWM, GPIO, IR Remote Control
Antenna ConnectorIntegrated PCB Antenna
Operating Temperature-40°C to +125°C
Dimensions20mm x 16mm x 3mm

Frequently Asked Questions

How do I program or configure the ESP8285 ESP-M3 module?

The module comes pre-flashed with AT command firmware compatible with the ESP8266. Connect it via a USB-to-serial adapter to your computer's UART pins (TX, RX, GND, and 3.3V). Use a serial terminal like PuTTY or Arduino IDE's Serial Monitor at a baud rate of 115200 (default) to send AT commands for Wi-Fi configuration, TCP connections, and GPIO control, enabling rapid IoT prototyping without complex firmware development.

What is the power supply requirement for this WiFi module?

The ESP8285 ESP-M3 module requires a stable 3.3V DC power supply. Ensure your power source can deliver sufficient current, especially during RF transmission peaks. Incorrect voltage (like 5V) can permanently damage the chip. For battery operation, incorporate a 3.3V regulator or LDO. Monitor power consumption, as the module's current draw will increase significantly when the Wi-Fi radio is actively transmitting data.

Can I use the Arduino IDE to develop for this module?

Yes, you can use the Arduino IDE by selecting a Generic ESP8266 board as the target, as the ESP8285 is firmware-compatible. Install the ESP8266 board package via the Boards Manager. Use the module's serial pins (GPIO1/TX, GPIO3/RX) for programming via an FTDI adapter. Remember to put GPIO0 low (ground) and pulse reset to enter flash mode before uploading your Arduino sketch for custom firmware development.

Package Includes

  • 1 x ESP8285 ESP-M3 WiFi Module
  • 1 x Header Pin Set

Additional Information

Weight 0.0015 kg
Dimensions 2 × 1.6 × 0.3 cm