




Product Description

The PTSolns Proto-ESP is a purpose-built prototyping platform engineered for seamless integration with a wide range of ESP-based development boards. This hybrid solution combines the functionality of two PTSolns innovations — the Proto-Full and the ESP Master Key — to deliver a robust and efficient prototyping experience.
On the prototyping side, the Proto-ESP retains all core capabilities of the Proto-Full, including multiple configurable power rails, versatile power input options, and an expansive prototyping area laid out in a familiar breadboard-style format. Enhancements such as high-current copper traces, clearly legible silkscreen labeling, and uniquely shaped jumper pads significantly improve durability, readability, and solder-based hardware configuration flexibility.
The opposite side of the board features a compact, high-density ESP interface section that breaks out all pins of most standard ESP modules. When paired with the PTSolns ESP32 microWatt additional and dedicated jumper pads are available that offer convenient powering options.
With its comprehensive feature set and thoughtfully engineered layout, the Proto-ESP accelerates the development of reliable, custom hardware solutions for any ESP-based system.
Proto-Series
This product is part of the Proto-Series. All the members of this series include:
- Proto-Full
- Proto-Half
- Proto-Mix
- Proto-N2RF
- Proto-ESP (this product page)
Features of the Proto-Full

The following are highlights of the Proto-ESP. For full details please see the datasheet which can be found in our "PTSolns Documentation Repository".
- All the features of the Proto-Full (left side of the board)
- ESP interface section (inspired by the ESP Master Key)
- Special powering options if using ESP32 microWatt.
- Silkscreen printing on both sides.
- Four mounting holes can be separately grounded (see second image for grounding options). Mounting holes can also be used to stack multiple boards.
-
Lead-free surface finish RoHS.
Example Application

The example setup shows interfacing the ESP32 microWatt.
- Item marked “1”. The ESP32 microWatt is powered with the special solder jumpers. To close the solder jumper use double row male header and jumper caps to make a semi-permanent hardware configuration.
- Items marked “2”. Connect rails with jumper caps.
- Item marked “3”. Use female barrel jack to to power the board.
- Item marked “4”. The ESP32 microWatt is plugged into the female headers with the USB-C port pointing to the right.
Deluxe Package (if selected)
The Deluxe package coming soon...
Technical Specifications
Dimensions | 200.7mm long by 58.4mm wide, 1.6mm thick |
Mounting hole | Fits M3 (3.2mm) hardware, with 6.4mm copper pad |
Mounting hole spacing | 185.4mm and 43.2mm, centre to centre |
Pitch of tie-point | 2.54mm/0.1in (aka "100 thou") |
Surface finish | Lead free HASL-RoHS |
Other Names
- Proto-ESP
- PTS-00206-001
- PTS-00206-201
- PTS-00209-001