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Bluetooth Music Pedal for Hands-Free Page Turning

Embedded software development
Consumer electronics
Embedded hardware development
Entertainment
Firmware development

About

A company that produces music gear and products that improve musicians’ performance using wireless devices came up with an idea for a Bluetooth-equipped guitar pedal. The idea of this pedal is to let a guitar player scroll through pages on their digital devices using their feet. This is a great solution for solo artists, music bands, orchestras, or church worship teams. It lets musicians turn pages and control hundreds of music apps hands-free.

Request

The client was looking for a partner that could provide a turnkey solution for the Bluetooth-equipped guitar pedal. He needed to implement firmware development and PCB design for the device. Because our client was looking to fund the project on Kickstarter, he needed to dramatically decrease the cost of the end product so it could be competitive.

Solution

Integra Sources helped the client to develop a Bluetooth guitar pedal from a concept to an off-the-shelf product that supports iOS, Android, Mac, and PC platforms. We developed firmware and provided bug-free PCB design services and CAD models to visualize the physical enclosure. We also connected our client with expert manufacturers.

"Integra Sources provided a bug-free design and connections to expert manufacturers. Though slow in the warmup period, they codified their process and provided a strong product."

Founder of the music company

Development and testing

Development and testing

Technologies Used

We used nRF51822 with BLE 4.0 support and Cortex-M0 core as MCU in this project.
The device has an internal 9V battery and external input with reverse polarity protection for external 9V wall adapter.
USB-A connector can be used as 5V power source for a tablet.
FreeRTOS is used for firmware development.
The device has several buttons, switches, and LEDs.
KiCad IDE was used for Schematics and PCB design.
Microsoft Visual Studio with Visual GDB plugin was used for firmware implementation.
The firmware was implemented using C/C++.

Result

The music pedal is a Bluetooth 4.0 equipped device. It has a solid aluminum case and an elegant design. The device can be powered by 9V battery or external 9V power supply. It also has USB 5V output and can charge tablets or phones when powered from an external power supply. We used nRF51822 BLE SoC to provide high working range and low power consumption.

 

Our customer received a full-fledged prototype with all the required unique features. He ran a successful campaign on Kickstarter and got positive feedback from influencers who tested the product. The device is currently in mass production and we're discussing a new version of the device with our client.

Make some noise

Raised on Kickstarter

150% of the goal

Works with

> 100 apps

Support for

iOS, Android, Mac, Windows

Battery life

150 hours

Scope of work

Hardware development

Case design

Firmware development

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