DESIGN IDEAS
 - CMOS IC Makes Low-Cost Digital Potentiometer

- Power Management In The ST62

- Automatic Power-Off Circuit Saves Battery

- Simple PC Smart Card Reader Enhancement
- Digital Position Encoder Does Away With ADC

 - Single-Supply RS-232 Transmission Without Level-Translator ICs
- ΅C Controls Charge Pump As Background Task

- Clock Multiplier Circumvents PLL
- Drive Smart Cards With A Low-Cost MCU's UART 

- Wireless “Battery” Energizes Low-Power Devices

- Harvest Energy Using A Piezoelectric Buzzer

- Drive A Single-Coil Latching Relay Without An H-Bridge Circuit

DESIGN CONTESTS
 - The Mobile Phonebook

- The CheckPoint Charlie

- The Lord Of The Keys
- MoneyPenny
- Enigma

- Bye Bye Standby

 - Flower Power

ARTICLES
- Mobile Phone Book: M16C/62P Based Data Backup System
- Internet Password Manager
- RFID Payment Terminal 
- Tecnologνa NFC Para Aplicaciones De Proximidad Seguras

- The Green Standby

- Flower Power

CONTACT
 - E-mail

 

SCHEMATIC BASED ON THE ATMEL ATmega168


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Abstract • Introduction • What is a smart card? • Communication model • APDU protocol • TPDU protocol • Answer To Reset • What's all this Java Card stuff, anyhow? • Java Card Applet • User's guide • Hardware design • Block diagram • Schematic • USB interface • Using AVR-USB for free • Theory of operation • Human Interface Device (HID) • Firmware design • Alphanumeric keypad • Flowchart • References

© 2006 Carlos Cossio. All Rights Reserved.