Collaborate Disseminate
By now, 3.3V has become a comfortable and common logic level for basically anything you might be hacking. However, sometimes, you still need to interface your GPIOs with devices that …read more Continue reading When Your Level Shifter Is Too Smart To Function
If your introduction to digital electronics came more years ago than you’d care to mention, the chances are you did so with 5V TTL logic. Above 2V but usually pretty close to 5V is a logic 1, below 0.8V is a logic 0. If you were a keen reader of electronic text books you might have read about different voltage levels tolerated by 4000 series CMOS gates, but the chances are even with them you’d have still used the familiar 5 volts.
This happy state of never encountering anything but 5V logic as a hobbyist has not persisted. In recent …read more
Continue reading Taking It To Another Level: Making 3.3V Speak with 5V