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November 2, 2021 at 10:04 am #13279
The Voice It is a simple DIY device for augmentative and alternative communication (AAC) . It reads the text stored on an RFID tag, then looks for an audio file on its SD card with the same name, and plays the file through the internal speaker. You control which objects have an RFID tag and you control what’s contained in the audio file.
The Bliss Tactile Symbols, by default, include an internal pocket, just big enough to hold a simple RFID tag. The Voice It comes with English and Spanish sound files for each of the 241 out-of-the-box tactile symbols.
You can also attach an RFID tag to any physical object and encode that tag with text using an inexpensive, RFID tag writer. The Voice It SD card can be removed and additional audio files can be added using a PC.
By default, the Voice It “talks” in English but you can easily create an RFID-based language token to switch the language to Spanish or any other language you’ve put on the SD card.
MMC Library Page: https://makersmakingchange.com/project/voice-it/August 5, 2022 at 12:14 pm #15619
Sourcing Lithium batteries can be challenging. The original battery is available from Adafruit (https://www.adafruit.com/product/328), but can’t be shipping internationally and Amazon (https://www.amazon.com/gp/product/B01NAX9XYG).
Canadian Sources for equivalent Lithium Batteries:
- https://www.amazon.ca/Adafruit-328-Battery-Lithium-Polymer/dp/B01NAX9XYG, $61.15
- https://secure.sayal.com/STORE2/View_SHOP.php?SKU=254696, $26.95 CAD + Shipping + Tax
- https://x2robotics.ca/lithium-ion-polymer-lipo-battery-3-7v-2500mah?search=lithium%20ion%20battery%202500, $16.99 + Shipping + Tax
It’s important to make sure that the connector polarity is correct. The one from Adafruit has the positive connection on the left. Other suppliers often have this reversed.
If the polarity is reversed, both cables can be cut, swapped, and then resoldered with heat shrink.
Reversed polarity, smaller size and capacity:
Reversed polarity, same capacity, but larger physical size:
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