E-Book for Blind


What are you going to build? What does it do? Why are you excited to build it?

I want to create an e-book for blind. The reason for this is because physical ones are heavy, very expensive (up to $500 per book), and can only be read 3-5 times (those little “dots” get sanded away by fingers).


What steps are you going to take to build it? What tools are you going to use? What will you do first, second, third, etc.?

I plan on using an Arduino Uno board (as a brain), micro solenoids (show/hide tactile “dots”), shift registers/expanders (to have enough pins), transistors (to open or close the segments), SD card module (to store the book itself) and a few buttons for easy navigation.


What materials will you need for your project? Where will you get them? How much does it cost? Please include all materials, including components you already own. Make sure to factor in shipping costs and sales tax.

Arduino Nanohttps://www.aliexpress.com/item/4000587268145.html1 pc$2.49
PCF8575https://www.aliexpress.com/item/1005001930978496.html2 pc$1.45
SD board (SPI)https://www.aliexpress.com/item/32523546123.html1 pc$0.45
Push Buttonshttps://www.aliexpress.com/item/4001164258760.html1 lot$0.53
Solder Wireshttps://www.aliexpress.com/item/32949492882.html1 lot$1.09
ProtoBoardhttps://www.aliexpress.com/item/32981958921.html1 pc$2.14
Diodeshttps://www.aliexpress.com/item/1005004320920058.html1 lot$4.56
Transistorshttps://www.aliexpress.com/item/1005004320920058.html5 lots$10.05
Resistorshttps://www.aliexpress.com/item/1005002388714967.html2 lots$1.99
Soldering Kithttps://www.aliexpress.com/item/1005001713978322.html1 pc$15.70
Solenoidshttps://www.aliexpress.com/item/1005002154277283.html30 pc$1.88
Breadboardhttps://www.aliexpress.com/item/32523839459.html1 pc$1.77
USB C Donglehttps://www.aliexpress.com/item/4000180424469.html1 pc$3.70
Plastic casingOwned1 pc$0
PowerBank, cableOwned1 pc$0