Utilizing a small pen form factor, this design operates as a hand-held scanner with optical character recognition (OCR). The pen not only captures and stores the characters available for download, but it can also read the words to you via a small built-in speaker. The heart of this design is the RL78/G14, an industry-leading lowest power MCU. The MCU interfaces to the image sensor and a micro-SD card as well as controls the volume of the speaker via a digitally controlled potentiometer. Additionally, the pen is powered off a rechargeable battery, which is charged via the ISL9205 battery charger.

Key Features:

  • Scans with OCR and captures data on micro SD card
  • Reads captured sentences back via a built-in speaker
  • Operates on very low current and enables long battery life
  • Small form factor with rechargeable battery via the USB interface
     

Related Products

Product Description Featured Document Ordering
       
Microcontroller      
RL78/G14 Low power consumption, high function general-purpose microcontrollers RL78/G14 Hardware User's Manual Select Specific Device
       
LDO      
ISL9001A LDO with low supply current, high PSRR Datasheet Buy / Sample
       
Battery Charger      
ISL9205 Li-ion battery charger Datasheet Buy / Sample
       
Potentiometer      
ISL22316 Digitally controlled potentiometer (XDCP) with I2C  bus interface Datasheet Buy / Sample