WEMOS D1 Mini compatible ESP8266 Dual Base
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This is a Dual-Base to take 2 stacks of Wemos D1 Mini compatible shield and modules. These Base is in technically terms a “back plane”, and it connects the pins with the same names and functions between the 2 stacks.
The use of such a Base makes it much easier to build larger projects, than stacking everything piggyback on top of each other.
The Dual-Base comes with the necessary 4 connectors for D1 Mini compatible modules and shields
Specification: WEMOS D1 Mini compatible ESP8266 Dual Base