The NodeMCU Development Board is based on the NodeMCU v1.0 ESP8266 Wireless module. It is the base for a wireless, modular development system that is compatible with the Arduino IDE programming environment and libraries

NOTE: This system is not PHYSICALLY compatible with any other micro-controller, or Arduino board. The shields for this system will only mount on the NodeMCU Development Board

The environment currently includes add-on shields such as:

• Motor Shield supporting 4 DC motors (3A per-channel PEAK) or 2 Steppers, plus (4) 5v hobby servos found HERE
• Sensor Shield with on-board Atmega328 micro-controller that supports 4 Ultrasonic Range Sensors plus 4 Passive Infra-red sensors, with a dedicated I2C port and 12-bit 4-ADC inputs HERE
• 16-port bi-directional IO Expansion Shield found HERE
• 12-Bit 8-Channel ADC Expansion Shield found HERE;
• 16-Channel, 12-bit PWM Servo Shield (RELEASING SOON!)
• Postage-stamp sized I2C add-on sensors such as a the BME280 temp/humididy/pressure sensor, the CCS118 Air-quality testing/CO-monitoring sensor, luminosity sensors, etc

All of the boards and shields in the environment are optimized for minimum footprint with maximum feature-set.

The entire system can be mounted onto a dual-18650 Li-on battery holder (included), which can power the whole system.

The NodeMCU Development Board has the following features:

POWER

• On-board 5v boost/buck regulator can supply up to 1.5 output current from supply voltages of 3-16V. (3.3-12V recommended)
• On-board 3.3v regulator can supply up to 800ma of output current
• Can be powered from 2.1mm barrel jack (3-16V)
• Can be powered from screw-terminal connector (3.3-16V)
• Can be powered by (2) 18650 Li-on batteries in parallel via the attached battery holder
• Battery power switch
• Reverse-battery protection - installing 18650 batteries backwards won't harm board or batteries!
• Reverse-polarity protection on screw terminal
• Back-feed protection for batteries and screw terminal
• Aluminum electrolytic capacitor and inline ferrite bead for power smoothing and brownout prevention
• Self-healing polyfuse for overcurrent protection

FEATURES:

• On-board MicroSD card reader
• Dedicated SPI header support NRF24L01+ 2.4Ghz radio modules (see note below)
• Tantalum capacitor for power smothing/brownout protection of SPI port
• Dedicated I2C header, supports use of small add-on sensor modules
• Pull-up resistors on I2C lines with cutable traces
• Onboard ESP8266 ESP-12E module
• All ESP8266/NodeMCU pins broken out
• Red LED connected to pin D0 - conforms to LED_BUILTIN specification in Arduino IDE
• Green power LED

NOTE2: NRF24L01 module can not be used when the Sensor Shield is installed as they share pin D4

DIMENSIONS:

• Board Outline 78.6mm x 36.6mm
• Mounting Hole Diameter 3mm
• Mounting Hole Spacing 32.5mm x 67.9mm
• Board Height - Without Battery Holder ~17mm
• Board Height - With Battery Holder ~39mm

This board can be ordered fully-assembled with or without the battery holder mounted to the bottom or as a kit for self-assembly. All SMD components are pre-installed.

You can elect to order this board without the NodeMCU module if you want to provide your own by selecting the option on the right. This module is designed around NodeMCU version 1.0 and may not function correctly with other versions.

This board requires an OPTIONAL micro-USB cable for programming.