A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:
Proof of Concept
Explorations that test ideas and functionality.
Demonstrates the functionality of the final product, but looks different.
Looks like the final product, but is not functional.
Appearance and function match the final product, but is made with different manufacturing methods.
Appearance, function, and manufacturing methods match the final product.
GRasPi is a 15W guitar amplifier, battery powered, backpack frendly, borned as an accessory for Raspberry-Pi, it is a small amplifier with a clean channel internally connected to an audio codec that harnesses the power of the Raspberry-Pi to run open source app like Guitarix (or others) which, controlled from an external MIDI pedal, offers a very large variety of custom sounds to the musician. The long battery life allows a good autonomy even to street musicians, furthermore with appropriate software the MIDI input port can be used with a master keyboard and enable its use simultaneously with a guitar.
The best way to access the Raspberry-Pi's desktop is via wireless with VNC, so you can experience the sounds you prefer and create your own presets, for your gigs you can simply use a MIDI pedal to handle them.
The small size and low weight combined to battery (3-cell 2600mAh 18650) make it the perfect companion of your guitar or an alternative when you don't have the opportunity to use your large and heavy amplifier.
The Raspberry-Pi is not included
Our choice is to not include the RPI in the GRasPi package, given its low cost and wide availability those who already were not in possession can buy it easily online.
We will supply basic images for Raspberry with Guitarix installed and configured so that everyone can download and modify it as per their choice.
Risks and challenges
The risk itself is very low, the project is almost finished, they were built few prototypes and conducted several tests, others are in progress, what is missing is the industrialization phase, aimed at keeping the final cost low as planned, it may be that we will make some minor adjustment to the design according to the tests results.
By the end of January we should have the approvals required by the various countries, after which parts production will start; since there are no critical components we do not expect delays, the first shipments are planned for March 2017.