What is it?

It's a breakout board I designed for NodeMCU boards with

• space for DHT22 sensor
• breakout for all pins (for easy breadboarding/prototyping)
• LED or I2C level shifter (4 channel)
• I2C bus header for connection to submodule boards (also available)
• external sensor i/o pins
• a jumper for 3.3v/5v supply voltage selection for the external i/o
• and Deepsleep reset built into the board

Why did you make it?

Allows easy design and testing, and nicely ties together my multi-sensor and LED Strip controller projects (also available here on Tindie!)

What makes it special?

It allows easy prototyping with a NodeMCU v0.9 or v2, a cheap board with the unfortunate "issue" of not fitting on a standard breadboard!

Note: Please let me know if you prefer the older version (red board, v1.1 of the PCB)