Support 802.11 b/g/n/e/I Supports Station, SoftAP, SoftAP+STA mode Support wi-fi Direct (P2P) Support CCMP(CBC-MAC, counter mode), TKIP(MIC, RC4), WAPI(SMS4), WEP(RC4), CRC hardware acceleration

1) Ultra-small volume; 2) Serial port to WIFI; 3) Wireless transmission; 4) Long-distance ultra-low power consumption; 5) can be external antenna. 6) High temperature resistance, up to 125℃ 7) Fully compatible with ESP8266, source code can be used for transplantation intact.

The 3.3V regulator circuit and the on-board level conversion circuit make it easy for the 5V microcontroller to use with the ESP-01 Wi-Fi module. The product can be used with Arduino's Unor 3 or compatibility boards. Features: Operating voltage :4.5 ~ 5.5V(on-board 3.3V LDO regulator) Operating current :0-240mA Interface Logic voltage: 3.3V / 5V compatible (on-board level conversion circuit)

Without ESP8266. Please note that the single development board does not come with WiFi

The WiFi module of Nodemcu V3 Lua integrates ESP8266 + 32M Flash and USB serial port CH340G

NODEMCU-M is developed based on ESP-M1/M2/M3. This version is fully compatible with the Nodemcu version available on the market

Using CP2104 USB to serial port chip, and add ESP8266 automatic download circuit, very convenient ESP-01/01S download program, upgrade firmware, serial port debugging, support Arduino IDE,ESP8266Flasher, Flash_Download TOOLS and other download software software, one button download, do not need to wire, do not need to press any key.WiFi module will automatically enter the download mode.

* Main control: ESP-01/ESP-01S (This module does not include ESP-01/ESP-01S) * Temperature and humidity sensor: DS18B20 * Working voltage: DC 3.7V-12V(support 3.7V lithium battery power supply) * Measuring range: -55°C to +125°C * Measuring accuracy: ± 0.5°C

Ex. 1. Based on the ESP - 8266 2. Arduin-compatible, using Arduino IDE for programming 3.11 the XI/O pins 4.1XADC Pins (Input 0-3.3V) 5. OTA on-line support 6. On-board 5V 1A switching power supply (large input 24V)

Can be used for access control system, control motor, fan and other electrical equipment, direct access to the circuit, as a remote switch use. If it is used to control LED lights, it is recommended to control the LED lights above 20W. Since the power consumption of WiFi module is variable, there will be strobe when low-power LED lights are used.

ESP-Wroom-02 D1 Nodemcu WiFi Module ESP8266 Module 16Mbit