The PTSolns ESP Master Key is part of the Key-Series. This Key makes working with many of the ESP boards simpler and more efficient, in turn saving you time and frustration. The ESP Master Key is a breakout board adapter that connects popular boards, such as many of the ESP boards, to a breadboard or prototyping board. The unique design frees up precious space on your breadboard/prototyping board and eliminates complicated wiring schemes that take hours to install and easily rip off when trying to remove the ESP board from the breadboard. If you have ever worked with an ESP on a breadboard, then you know the struggle!

This ESP Master Key is called "Master" as any of the standard ESP boards will interface with it. The Key can interface with a board of up to 20 pins per row (2.54mm/0.1in pitch) and a row spacing of 8x, 9x or 10x 2.54mm/0.1in (See Schematic in images). The Key fits on any standard breadboard/prototyping board, and also the PTSolns Proto-Full and Proto-Half boards.

Key Features
- Silkscreen printing on both sides.
- Easy numeric pin numbering from 1 to 40.
- Top and bottom ground planes connected to ground GND out pin.
- Fits many of the common/popular ESP boards.
- Lead-free surface finish RoHS.
- Compatible with the PTSolns Proto-Full and Proto-Half boards!

Product Package
- 2 pcs PTSolns ESP Master Key PCBs
- 4 pcs 2x20 Pin, 2.54mm/0.1in, Female Headers
- 4 pcs 1x40 Pin, 2.54mm/0.1in, Male Headers

NOTE 1: The ESP Master Key does not come assembled. Soldering is required.

NOTE 2: Parts in this package could be a choking hazard for young children. Please exercise caution.