ESP8266-01
1. 802.11 b/g/n Standards
2. Wi-Fi Direct (P2P), soft-AP
3. 1MB Flash Memory
4. Integrated low power 32-bit CPU could be used as an application processor
5. A-MPDU & A-MSDU aggregation & 0.4ms guard interval
6. Wake up and transmit packets in < 2ms
7. Standby power consumption of < 1.0mW (DTIM3)
ESP8266-01 With Relay Board
1. Diode effusion protection
2. Short response time
3. Onboard Relay:5V,10A/250V AC 10A/30V DC relay
4. Transmission distance : 400m (max)
5. Baud Rate: 9600
ESP8266-12E
1. WS2812 Led on board.
2. 802.11 b/g/n
3. Wi-Fi Direct (P2P), soft-AP
4. Integrated TCP/IP protocol stack
5. Integrated TR switch, balun, LNA, power amplifier and matching network
6. Integrated PLL, regulators, DCXO and power management units
NodeMCU ESP8266-12 CH340 Based
1. Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
2. Arduino-like hardware IO
3. Integrated TR switch, balun, LNA, power amplifier and matching network
4. Integrated PLL, regulators, DCXO and power management units
5. Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
6. Embeds logic level converter circuits
7. Has onboard 3.3V regulator to ensure enough power to function as your go-to WiFi chip!
8. Easy access to the GPIO pins for easy prototyping
9. ESP-12E Processor
10. Easy to use breadboard friendly form factor
NodeMCU ESP8266-12 CP2102 Based
1. Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
2. Arduino-like hardware IO
3. Integrated TR switch, balun, LNA, power amplifier and matching network
4. Integrated PLL, regulators, DCXO and power management units
5. Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
6. Embeds logic level converter circuits
7. Has onboard 3.3V regulator to ensure enough power to function as your go-to WiFi chip!
8. Easy access to the GPIO pins for easy prototyping
9. ESP-12E Processor
10. Easy to use breadboard friendly form factor