Important Note

This entire repo was AI created - including all of the data within. The intent was to A) help me with my personal electronics inventory; and B) see how I could use AI to make that process a bit easier. DO NOT TRUST!

Circuit Playground Proto Gizmo - Bolt-on Perma-Proto

Overview

Extend and expand your Circuit Playground projects with a bolt-on Perma-Proto that lets you connect solderable circuits in a sturdy and reliable fashion. This PCB looks just like a solderless breadboard but has permanently affixed M3 standoffs that act as mechanical and electrical connections. Solder to the gold-plated traces to create your custom invention!

Specifications

• Outer Diameter: ~50.6mm / ~2.0”
• Weight: 17.8g
• Standoff Height: 8mm (as of Nov 8, 2019)
• Material: FR4 PCB with gold-plated traces
• Mounting: M3 threaded standoffs

Key Features

Breadboard-Style Layout

• Familiar Pattern: Standard breadboard trace layout
• Gold-Plated Traces: High-quality, corrosion-resistant connections
• Oval Pads: Large connection pads for each Circuit Playground pin
• Power Rails: Dedicated 3.3V (red) and Ground (blue) rails
• Side Groups: Black-marked connection groups in center area

Mechanical Design

• Bolt-On: Secure mechanical connection to Circuit Playground
• M3 Standoffs: Pre-soldered 8mm standoffs for proper spacing
• Removable: Can be attached and detached multiple times
• Battery Clearance: 8mm height provides room for battery underneath
• Stable Platform: Rigid connection for reliable circuits

Circuit Playground Compatibility

• Universal Fit: Works with Classic, Express, and Bluefruit
• Pin Mapping: Oval pad markings match Express/Bluefruit naming
• Power Access: Direct access to 3.3V and ground rails
• Signal Access: All GPIO pins accessible via large oval pads

Circuit Layout

Power Distribution

• 3.3V Rail: Red-marked power rail in center
• Ground Rail: Blue-marked ground rail in center
• Multiple Access: Power available at multiple points
• Low Resistance: Direct connection to Circuit Playground power

Signal Connections

• Oval Pads: Large pads for each Circuit Playground pin
• Clear Labeling: Pin names marked on PCB
• Easy Access: Convenient soldering points
• Reliable Connection: Secure electrical and mechanical connection

Prototyping Area

• Breadboard Pattern: Standard 0.1” spacing
• Side Groups: Connected groups for component placement
• Flexible Layout: Accommodate various circuit designs
• Ample Space: Plenty of room for components and connections

Applications

Circuit Development

• Permanent Prototypes: Move from breadboard to permanent circuit
• Sensor Integration: Add external sensors and interfaces
• Driver Circuits: Motor drivers, relay controls, amplifiers
• Signal Conditioning: Analog signal processing circuits

Educational Projects

• Electronics Learning: Hands-on soldering and circuit building
• STEM Education: Practical electronics education
• Project Development: Prototype to finished project progression
• Skill Building: Soldering and circuit design practice

Professional Use

• Product Development: Rapid prototyping platform
• Custom Interfaces: Specialized input/output circuits
• System Integration: Connect Circuit Playground to larger systems
• Testing Platforms: Create test fixtures and jigs

Assembly Process

Preparation

1. Plan Circuit: Design circuit layout before soldering
2. Gather Components: Collect all required parts
3. Test on Breadboard: Verify circuit function first
4. Prepare Tools: Soldering iron, solder, flux, etc.

Installation

1. Attach Gizmo: Bolt onto Circuit Playground with included screws
2. Test Connections: Verify mechanical and electrical connections
3. Plan Component Placement: Layout components before soldering
4. Solder Components: Install components and make connections

Best Practices

• Start Simple: Begin with basic circuits
• Test Incrementally: Test each section as you build
• Use IC Sockets: For expensive or removable components
• Document Design: Keep schematic and notes

Tools Required

Soldering Equipment

• Soldering Iron: 25-40W temperature-controlled iron
• Solder: 60/40 or lead-free solder
• Flux: Rosin flux for clean joints
• Desoldering Tools: Wick or pump for corrections

Assembly Tools

• Wire Strippers: For hookup wire preparation
• Needle-Nose Pliers: Component placement and bending
• Diagonal Cutters: Trimming component leads
• Multimeter: Testing connections and troubleshooting

Components

• Electronic Components: Resistors, capacitors, ICs, etc.
• Hookup Wire: 22-26 AWG solid or stranded wire
• IC Sockets: For removable integrated circuits
• Headers: Pin headers for modular connections

Design Guidelines

Circuit Planning

• Schematic First: Always draw schematic before building
• Component Placement: Plan optimal component locations
• Wire Routing: Minimize wire crossings and lengths
• Power Distribution: Ensure adequate power routing

Soldering Tips

• Clean Iron: Keep soldering iron tip clean and tinned
• Proper Temperature: Use appropriate temperature for components
• Good Joints: Create shiny, solid solder joints
• Avoid Bridges: Prevent solder bridges between pads

Troubleshooting

• Visual Inspection: Check for obvious problems
• Continuity Testing: Verify connections with multimeter
• Power Testing: Check power distribution
• Signal Tracing: Follow signal paths for problems

Package Contents

• 1x Circuit Playground Proto Gizmo PCB
• 12x M3 screws for attachment
• Pre-soldered M3 standoffs (8mm height)
• Documentation and getting started guide

Important Notes

• Standoff Height: 8mm standoffs provide clearance for battery
• Pin Compatibility: Markings match Express/Bluefruit pin names
• Reusable: Can be attached/detached multiple times
• No Components: Electronic components sold separately
• Soldering Required: Assembly requires soldering skills

Advantages

• Permanent Circuits: More reliable than breadboards
• Professional Appearance: Clean, finished look
• Secure Connection: Mechanical and electrical stability
• Reusable Platform: Can be used for multiple projects
• Educational Value: Teaches soldering and circuit construction

Limitations

• Soldering Required: Not suitable for beginners without soldering experience
• Single Use Circuit: Difficult to modify once assembled
• Component Cost: Additional cost for electronic components
• Size Constraints: Limited by Circuit Playground form factor
• Fixed Layout: Breadboard pattern may not suit all designs

Recommended Accessories

• Soldering iron and solder for assembly
• Electronic components for circuit building
• Hookup wire for connections
• IC sockets for removable components
• Multimeter for testing and troubleshooting