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uPesy Prototyping Boards Datasheet

(Updated at 03/16/2023)

Sélectionnez la version de votre carte mentionnée au verso: Rev x.y

Here is the technical documentation for uPesy’s prototyping boards, which are used to solder electronic components to them using a soldering iron and solder wire.

uPesy weldable breadboard presentation


On the new version of the boards, the center mounting holes are slightly more offset at the ends. For more information, see the difference between the old and new version of uPesy’s solderable breadboards.

These prototyping boards have the following characteristics exactly like solderable breadboards . Unlike classic protoboards with holes isolated from each other, here on these boards, the holes are connected by rows as on a classic breadboard.


These protoboards are perfect for creating a permanent version of your original breadboard circuit with reliable connections.

The different sizes

The protoboards are available in 3 different sizes corresponding to the 3 types of breadboards commonly used:

  • The Mini variant corresponds to the size of a Mini breadboard of 170 holes (17 rows) with dimensions: \(51mm \times 38mm \times 1.6 mm\) .

  • The Medium variant corresponds to the size of a 420 holes breadboard (30 rows), i.e., \(87mm \times 53mm \times 1.6 mm\) .

  • The Large variant corresponds to the size of a classical breadboard of 800 holes (63 rows), with dimensions: \(171mm \times 53mm \times 1.6 mm\) .


Here are the main characteristics of these prototyping boards:

  • Pads have a 2.54mm (0.1”) pitch.

  • Fixing hole of diameter M2 for the smaller ones, M3 for the bigger ones. They allow fixing the boards with standoffs (spacers).

presentation stripboard weldable top bottom

We can weld on both sides

  • 1.6mm thick FR4 PCB with pre-tinned pads for easy soldering.

Particular feature: Pads connected in rows

The pads are routed together as follows (the red lines represent the tracks on the board):

protoboard link

The red lines represent the brass tracks


It is the same as on a standard breadboard

Power tracks

On the Medium and Large variants, power supply tracks on both sides are separated. To have the same power supply, connecting them with a small soldering point at the location provided for this purpose is possible. They are on the top side (the one with the logo).

  • The bottom one allows to connect of the two ground tracks (- ) :

    jumper alimentation masse
  • The top one allows you to connect the two positive tracks (+ ) :

    jumper alimentation


For example, we can connect only the ground and have a 5V supply on the track + on the left and 3.3V on the right.

Usage recommendations

The boards must be used for an electronic circuit with low voltage (< 48V DC).


Do not use with mains voltages of 220V. The distance between the pads needs to be bigger, and the circuit is too much uncovered.

Resources made available

Changelog | Change History

v2.0 (03/2022)

  • Fixed a minor hole alignment problem on the Medium and Large .

  • Change the spacing between columns (A , J ) and the powertracks. The spacing is now a multiple of 2.54mm and is equal to the spacing between column E and F : 7.62mm.


    If you use the Elegoo breadboard power module, you will have to force the connectors a little to fit on the breadboard.

  • Moving the central fixing holes on the ends to have more space for the electronic circuit.

  • Slight offset of the 4 holes located in the corners to increase circuit clearance.

v1.0 (08/2020)

First version