| This project is a card with eight optically isolated TTL-compatible inputs for external connection to the serial port, which communicates th...
All items tagged with Gerber and Car (34)
| This article describes a card with 8 open-collector digital outputs for external connection to a PC serial port. The design of this card is...
| Credit cards, Eurocheque cards, other types of bank cards and car park tickets: even if many of these cards contain chips, they all have mag...
| The integrated output amplifier described in this article consists of little more than one integrated circuit. It is intended especially for...