2-Pack ESP-M3 ESP8285 – 32bit WiFi IoT Module with 1MB and pin header

C$ 7.95

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Availability: 35 in stock SKU: 26791
Quantity 3 - 9 C$ 7.35
Quantity 10 - 24 C$ 6.96
Quantity 25 + C$ 6.76


This is a pack of 2 Modules.

The ESP-M3 module is based on the ESP8285 SoC, an ESP8266 with an additional 1MB of Flash memory and a wider operating temperature range (up to 125C). The code is compatible with ESP8266. The core processor ESP8285 integrates the industry-leading Tensilica L106 ultra-low-power 32-bit micro MCU in a small package with 16-bit Lite mode, clocked at Supports 80 MHz and 160 MHz, supports RTOS, and integrates WiFi MAC/BB/RF/PA/LNA.


  • Operating temperature: -40 to + 125 C
  • Operating voltage: 2.5-3.6V (typ. 3.3V)
  • Clock Speed: 80-160 MHz
  • Flash memory: 1 MB
  • Interface: HSPI, UART, I2C, I2S, Remote Control IR Control, PWM, GPIO
  • WiFi Network Support: 802.11 b / g / n / e / I
  • Direct WiFi Support (P2P)
  • Support mode: CCMP, TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4), CRC etc
  • Microcontroller: Tensilica L106 32-bit MCU with ultra-low-power 16-bit mode
  • UART Baud rate: 300 to 4608000 bps (default 115200 bps)
  • Frequency Range: 2412 to 2484MHz
  • Antenna: on PCB
  • Transmit Power 802.11b: 16±2 dBm (@11Mbps)
  • Transmit Power 802.11g: 14±2 dBm (@54Mbps)
  • Transmit Power 802.11n: 13±2 dBm (@HT20, MCS7)
  • Receiving Sensitivity CCK, 1 Mbps: -90dBm
  • Receiving Sensitivity CCK, 11 Mbps: -85dBm
  • Receiving Sensitivity 6 Mbps (1/2 BPSK): -88dBm
  • Receiving Sensitivity 54 Mbps (3/4 64-QAM): -70dBm
  • Receiving Sensitivity HT20, MCS7 (65 Mbps, 72.2 Mbps): -67dBm
  • Power consumption Continuous Transmission: 71mA (avg) 500mA (peak)
  • Power consumption Modem Sleep: 20mA
  • Power consumption Light Sleep: 2mA
  • Power consumption Deep Sleep: 0.02mA
  • Security: WEP/WPA-PSK/WPA2-PSK

Easy tutorial on Instructables website (external link)

Download DOIT ESP-M3 Datasheet (compatible model)

Download Espressif ESP8285 Datasheet

Application note:
The peak current can reach over 500mA. Please make sure you have a capable and stable power supply available. You will not be able to power this module from the 3.3V output of an Arduino board or a USB-UART like FT232 or CH340. A larger electrolytic capacitor (e.g. 1000µF) close to the power pins is highly recommended.

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