



Product Description

The Proto-Shield is part of the Canadian designed Shield-Series. This prototyping shield allows the user to easily prototype their circuit, thereby making custom shields for their project. Notable features of the prototyping Uno shield include:
- Configurable power rails for more user design flexibility.
- 4-row breakout with strategically placed perpendicular rows.
- Can fit through-hole 2.54mm pitch IC socket of up to 2X14 Pins, both narrow and wide type.
- Fully stackable and compatible with Arduino Uno R3, Mega, Leonardo, Due, and other similar microcontrollers.
- SOIC 1.27mm pitch, 2X7-Pin footprint, with adjacent breakout pins.
- 3-hole connected diamond tunnel to bring any signal to different parts of the board thereby reducing cross-board wiring.
- Screw terminal output footprint for I2C device at 5V (3.3 if using Due).
- Screw terminal output footprint for four general purpose signals, including power output pins.
- Double-sided silkscreen printing.
- Three mounting holes that match Arduino mounting holes.
The Proto-Shield is compatible with the PTSolns Uno R3+, other branded Uno R3, Uno R4, Mega, and any other microcontroller development board with the same form factor.
Like all PTSolns products, the Proto-Shield comes with a datasheet. This, along with other supporting material, can be found on our "PTSolns Documentation Repository".
Shield-Series
This product is part of the Shield-Series. All the members of this series include:
- Proto-Shield (this product page)
- NRF-Shield
- Interface-Shield
- RTC MicroSD Shield
Features of the Proto-Shield

The Proto-Shield for the Uno, or similar, development board is packed with features. To learn about all the features packed into this prototyping board, the user is referred to the Datasheet, which can be found on our "PTSolns Documentation Repository".
Example Application

The Proto-Shield can be used to make endless types of custom shields. Only imagination is the limit. In this example application a custom sensor shield is made to collect data. In order to view the data a custom LCD shield is stacked on top.
Top Shield
This custom sensor shield includes two sensors: A) temperature/humidity sensor, and B) 3-axis accelerometer. Both of these sensors work on 3.3V logic. Therefore, a 5V-to-3.3V logic level shifter (LLS) is added in order to interface with the 5V I2C bus of the microcontroller. The shield is fully stackable and can be used within a larger project.
Bottom Shield
In order to view the data collected by the sensor shield a custom LCD shield is stacked on top. The first row of the display shows the temperature output, while the second row shows the x, y, z accelerometer reading.
Alternative Application
Instead of using the custom LCD shield, one can use the NRF-Shield to transmit the data to another microcontroller. This is useful in applications where the data collected is at a distance and needs to be transmitted to a central node.
NOTE: This example application is for demonstration purposes. Components shown are not included (such as sensors, LLS, display, battery clip, etc).
Be Creative, Make Unique Projects

The Proto-Shield has among the largest number of breakout rows of any Uno prototyping board. This allows the user to make many unique projects. As an example, one of many, is the "Nano that wanted to be an Uno". Using the Proto-Shield, a Nano was given the footprint and similar features of an Uno microcontroller development board.
The Proto-Shield has a Fritzing model, and so making beautiful schematics is easy. Find the Fritzing model, along with other supporting material on our "PTSolns Documentation Repository".
Deluxe Package (if selected)

The Deluxe kit includes:
- 3 pcs 8-Pin Screw Terminals
- 3 pcs 4-Pin Screw Terminals
- 6 pcs 2-Pin Jumper Caps (colour may vary)
- 1 pcs 1x40 Pin Male Header
- 3 pcs 1x10 Pin Stacking Header
- 6 pcs 1x8 Pin Stacking Header
- 3 pcs 1x6 Pin Stacking Header
- 3 pcs 2x3 Pin Stacking Header
Note: The Proto-Shield Deluxe package is a kit. Soldering is required.
Technical Specifications
Compatibility | Uno R3, Uno R4, Mega, Leonardo, Due, other similar microcontrollers |
Central power rails | Configurable 3.3V, 5V, GND |
Dimension | 68.7mm long by 53.5mm wide, 1.6mm thick |
I2C interfaces | 1x @ 5V (3.3V if using Due) |
SOIC | 1.27mm, 2X7Pin |
Other interfaces | 8-Pin output including 4 general purpose signals and 4 power (Vin and GND) |
Stackable | Yes |
Double-sided silkscreen | Yes |
Other Names
- Proto-Shield
- Prototyping Shield
- PTS-00138-001
- PTS-00138-101
- PTS-00153-001
- PTS-00153-101
- PTS-00153-211