Design Patterns for accessing hardware Probably the most distinguishing property of embedded systems is that they must access hardware directly. The whole point of an embedded system is that the software is embedded in a “smart device” that provides some specific kind of service, and that requires accessing hardware. Broadly,…
Category: Analog Electronics
AND Gate built with two diodes
1- Introduction Following the same idea on simulating some digital gates on LTSpice and reproducing them on the bench, here I simulate an AND gate in LTSpice and assemble a simple circuit on the bench. By comparing these two approaches I intend to facilitate understanding on the gate’s functionality, so…
The OR gate made with two discrete diodes
The OR gate As an exercise to practice some topics on analogue electronics at the bench, I developed an OR gate using two 1N4004 diodes. The bibliography I used was the classic “Electronic Devices and Circuit Theory” from Boylestad, in its chapter on diodes. I also modelled the circuit in…