Imported from GitHub: mihranrazaa/Knobble · commit ddd672b · license MIT

Description

A modern design for not so common radios

README

Knobble

A modern design for not so common radios.

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Overview

Knobble is a Rasberry pi based portable Radio scanning system design for real time monitoring and interacting with different radio frequncies via an RTL-SDR dongle. It can help you to listen through FM, aviation, emergency, amateur, and public service frequencies.

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Features

• Runs on Rasberry PI zero 2 W.
• Multi-band scanning across FM, aviation, emergency, amateur, and police frequencies
• Preset system with multiple frequency banks and persistent storage.
• Automatic and manual scan modes
• Better shutdown process
• Oled Display for sharing all the relevant live info.
• and a cool CAD Design for emotional support lol.

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Controls

Control	Action
Rotate Encoder	Adjust volume or frequency
Encoder Button (tap)	Start/stop scanning
Encoder Button (hold)	Toggle mute/unmute
Switch 1	Cycle through preset banks
Switch 2	Toggle scan mode (Manual / Auto / Preset)
Switch 3	Change radio service type (FM, Aviation, etc.)

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Files to build

PCB

The files for the PCB and Schematics are available in the PCB folder and gerber files are added in the Production folder..

3D Case (CAD)

The step files for the keyboard are available in the CAD folder and also in the Production Folder.

BASE

TOP

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Combined Images

Can't add a combine image of pcb with components my laptop can't handle all that together.. Other than this you just have to purchase the Components given in the BOM and solder and assemble them.

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BOM

Component	Quantity	Note	Price	Link
Rasberry pi zero 2 w	1	Controlling UNIT	16USD	Available
RTL-SDR	1	most important for the project..	51USD	Available
1.3 inch oled display	1	It has 2 extra Stabilizers just in case..	12USD	Available
macro switches	3	user input they are 50 pcs the link i have provided	0.9USD	Available
Rotary encoder	1	User input	0.9USD	Available
PCM5102A DAC	1	For connecting external speaker, headphones, etc	26USD	Available
UPS Hat	1	For portability	26USD	Available
PCB	**	JLCPCB ftw	-
CAD	**	Legion ftw	-
Total			135-145USD

I know it going above 150USD so i'm ready to pay the remaining cost...

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Next Update

• I want to add offline music listening...

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Extra Stuff

Gratitude

• Thanks to Hackclub and Hackpad for making me do this brilliant project, More coming :).
• Thanks to my potato for helping me till the end.
• Thanks to myself for completing the project and not getting distracted with another project.
• And Thank you for Reading?

Inspiration

Going to Undercity!! and i always wanted to build thiss project becuase RF always makes me curious it is like another invisible world which we can only access through speacial gears feels Magical...

Challanging

Building the custom case.. i don't have the words to express my pain...

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End

Check my BLOG ~ mihranrazaa(If you are reading this please review HappyUSB too ToT )

BYEEE