Quick Answer
The littleBits w9 proto board lets you solder your own components onto a standard littleBits module. It's the best breadboard alternative for permanent, custom circuits that integrate seamlessly with your existing Bits.
What Makes the Proto Board Different
Unlike standard littleBits modules that come with fixed circuits, the w9 proto board gives you a blank canvas. It has solder pads and a mounting board shape that snaps onto any littleBits base. This means you can add sensors, LEDs, or even a custom microcontroller without breaking the magnetic connection system.
Because the proto board requires soldering, it's best for users who already have experience with a soldering iron and basic electronics. If you're new to soldering, practice on a scrap board first to avoid damaging the pads.
Choosing Components for Your Custom Circuit
The proto board works with standard through-hole components. Common additions include extra LEDs, photoresistors, or small potentiometers. Keep in mind that the board has limited space, so plan your layout before you start soldering.
One limitation is that the proto board does not include any built-in protection or regulation. If you connect a component that draws more current than the littleBits power supply can handle, you risk damaging both the proto board and other Bits in your chain. Always check the current rating of your power Bit and your components.
Step-by-Step Guide to Building a Custom Circuit
- Plan Your Circuit on Paper: Draw a schematic of the circuit you want to build. Identify which pins on the proto board will connect to power, ground, and signal. Label each component and its orientation. Common mistake: forgetting to account for the polarity of components like LEDs or electrolytic capacitors. Double-check your schematic before soldering.
- Prepare the Proto Board and Components: Place the proto board on a stable, heat-resistant surface. Insert your components into the solder pads from the top side. Bend the leads slightly on the bottom to hold them in place. Checkpoint: ensure no component leads touch adjacent pads. Use a multimeter in continuity mode to verify isolation before soldering.
- Solder Each Connection: Heat the pad and the component lead simultaneously, then apply solder. Remove the iron and let the joint cool naturally. Trim excess leads with flush cutters. Common mistake: applying too much solder, which can bridge adjacent pads. Use just enough to form a small, shiny cone around the lead.
- Test the Circuit with a Power Bit: Snap the proto board onto a littleBits power Bit and a simple output Bit (like an LED or oscillator). Power on and observe the behavior. If nothing happens, disconnect power immediately and inspect your solder joints. Checkpoint: if the circuit doesn't work, reheat suspect joints and add a tiny amount of fresh solder. Cold joints are the most common failure point.
- Integrate Into Your Project: Once the proto board circuit works reliably, snap it into your larger littleBits chain. Use mounting boards to secure the assembly if your project will be moved or handled frequently. Next step: consider adding a proximity sensor (i8) or oscillator (i31) to your chain to create interactive, sound-based custom projects.
Product Facts
- littleBits w9 proto: If there is a Bit that doesn’t exist, you now have the power to make it. This one's for engineers and inventors who know their way around a soldering iron! The w9 proto board is the only littleBits module that lets you create entirely new circuits. It's the essential tool for custom projects that go beyond the standard library.
