Wemos D1 Mini ESP8266 NodeMCU WIFI board for Arduino
- Microcontroller: ESP-8266EX
- Operating Voltage: 3.3 V
- Digital I/O Pins: 11
- Analog Input Pins 1(Max input: 3.2V)
- Clock Speed: 80MHz/160MHz
- Flash: 4M bytes
- Length: 34.2mm
- Width: 25.6mm
- Use BRT (Bias Resistor Transistor)
- Easier into flash mode.
- 30% increase in radiating area
- Good stability.
- 11 digital input/output pins, all pins have interrupt/PWM/I2C/one-wire supported(except for D0)
- 1 analog input(3.2V max input)
- Micro USB connection
- Compatible with Arduino
- Compatible with Node MCU
- Support OTA wireless uploading
- 11 x I/O pins,1 x ADC pin
MINI NODEMCU ESP8266 WIFI DEVELOPMENT BOARD BASED ON ESP-12F
- Communication interface voltage: 3.3V
- Working current: 240mA(MAX)
- Serial port baud rate: 115200 (default), can be modified to other values by AT command
- Serial communication format: 8N1
- Wireless Network Mode: station / softAP / SoftAP + station
- Wireless criteria: 802.11 b / g / n
- WIFI @ 2.4 GHz, support for WPA / WPA2 security mode
- +19.5dBm output power
- Compatible with ESP-12(ESP-202)
- It is very easy to develop projects with AT commands
- Surface Mount Package with 2mm Pitch Pads
- Multiple GPIO’s for all your sensor needs
- Integrated TCP/IP protocol stack
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated PLL, regulators, DCXO and power management unit
- Power down leakage current of <10uA
ESP8266 Serial WIFI Witty Cloud Development Board ESP-12F Module MINI Nodemcu
- LDR Light Sensor on board
- WS2812 Led on board
- 3x tactile buttons (1x in the Witty board and 2x in theCH340 board)
- Micro USB connection for power and/or programming
- Uses latest ESP-12F module with 4M flash and integrated antenna
- Includes CH340G USB-to-UART programmer
- Includes LDR (light dependent resistor a.k.a photoresistor) connected to ESP’s ADC pin
- RGB LED connected to GPIO 12,13 and 15
- It supports 3 modes AP, STA, AP+STA
WeMos D1 ESP Wroom 02 Board ESP8266 Mini WiFi Nodemcu Module 18650 Battery
- One AD inputs.
- Micro USB inputs.
- One programmable LED (D0).
- AUTO PROGRAM circuit.
- ESP8266 (ESP-WROOM-02 With TELEC) is equivalent to the NodeMCU.
- Analog Input (AD): Built-in dividing resistor (AD = 220K ADC 100K = GND).
- There is a SOLDER terminal for SLEEP MODE.
- Compatible With Arduino andNodeMCU.
- Operation and charging are possible at the same time.
- 18650 charging circuit including the 5V boosting circuit with TP5410.
- Overcharge protection, over-discharge protection built-in.
- LED: Red = Charging, Green = Full charging.
- 3000 mA 18650 It is possible to operate for more than 17 hours on a battery.
- Integrated 18650 battery charging and discharging system.
- One switch controls whether the 18650 battery is on power or not.
- OLEDs SDA and SCL can connect to the D1 pin and the D2 pin respectively.
- The five buttons can be controlled by FLATH, RSET, D5, D6, and D7 respectively.
- The 5 Digital pins can configure the write/read/interrupt/PWM/I2C/one-wire supported separately.
- Operation and NodeMCU consistent, adding a programmable LED, you can use GPIO16 to control; display 8266 running status and other functions. Integrated OLED and five buttons, more convenient for development.
- The design concept originates from the open-source project NodeMCU; the development board integrates 18650 charging and discharging systems with charging and discharging protection. At the same time, an OLED and five directional buttons are integrated to facilitate the development.