Arduino Mega2560 With ESP Wifi (CH340)
Highlights:
It is a customized version of the classic ARDUINO MEGA R3 board. Full integration of Atmel ATmega2560 microcontroller and ESP8266 Wi-Fi IC, with 32 Mb (megabits) of flash memory, and CH340G USB-TTL converter on a single board! All components can be set up to work together or independently.
ESP8266-01
Highlights:
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
Highlights:
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
Highlights:
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
Highlights:
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
Highlights:
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
NRFL24L01 Transreceiver Module
Highlights:
1. Maximum operating speeds up to 2Mbps, GFSK modulation efficiency, Anti-interference ability,
2. Particularly suitable for industrial control applications.
3. Built-in hardware CRC error detection, Multipoint communication address control.
4. Low-power 1.9 ~ 3.6V, only 1uA on Power down mode
5. Built-in 2.4Ghz antenna
6. Built-in voltage regulator
7. Standard DIP Pitch Interface for embedded applications
NRFL24L01 Transreceiver Module w/ Antenna
Highlights:
1. Voltage: 3-3.6V (recommended 3.3V) V.
2. Maximum output power: +20dBm.
3. Power-down mode current: 4.2uA.
4. Operating Range: 1Km
5. Antenna Gain (peak): 2Dbi.
6. 2MB rate (Open area): 520m.
7. 1MB rate (Open area): 750m.
8. 250Kb rate (Open area): 1100m.
9. It uses 2.4GHz global open ISM band, with license free.
10. SPI interface facilitates the communication with MCU I/O port.