Decoding Frequency-Shift Keying Audio Files for the Sayso Globard LED Sign Matrix

Stewart Russell over at scruss blog has an interesting analysis of these Sayso Globords, LED message displays programmable via light pen, or audio input. As far as I can tell they’re designed by a Canada-based electronics component company (Red Current Technologies), and might be specific to Canadian retailers; I haven’t seen them in the northeast U.S., but that’s not to say they’re not migratory devices.


The audio files used for programming the display are clearly FSK-encoded, but I haven’t quite worked out the relationship between the tones and the display bits.

Read more.

Join 4,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Learn “How Computers Work” with Bill Gates, Ladyada and more – From Code.org !

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

Maker Business — Prototyping PCBs with Particle, a guide from a pro in the field #makerbusiness

Wearables — From mat to hat

Electronics — Even lower power!

Biohacking — Nectome’s Brain Preservation and Backup Service Plan

Python for Microcontrollers — Scott ([email protected]) on the Amp Hour podcast!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.