by Bryan Bergeron, Editor by Bryan Bergeron, Editor
Dedicated Chip vs.
Given the capabilities of the Raspberry PI, Parallax
Propeller, and revved-up Arduino clones, why bother
with dedicated chips? After all, when was the last time
you worked with, say, a 7472 J-K flip-flop chip? I can
recall a time when I had a plastic parts box filled with
7400-series chips, but I don’t own a single 7400 device
today. Have I replaced the dozen parts boxes full of
NE-555s and 7400 chips with a single Arduino Uno?
No way. Those boxes are still full of dedicated chips.
What’s changed in my arsenal of devices is the
nature of those dedicated chip assortments. I use the
microcontroller for what it does best — for logic and
control. The dedicated chips tend to be peripherals for
the microcontroller — an assortment of sensors,
actuators, and power-handling components.
I have a box of IR and ultrasonic range finders, digital
compasses, accelerometers, servos, and electronic speed
controllers for my quadcopter and ground robotics
projects. Then, there are the high voltage optoisolators,
diodes, and vacuum tubes for my guitar amp projects.
There’s a box dedicated to laser diodes and optical
detectors for an ongoing robotics project, as well as
microphone modules and vibration sensors for an
energy-harvesting project. You get the idea — dedicated
chips are still a necessity, it’s just the nature of the chips
Unbeatable Performance & Price Combination!
• 2 analog channels
• 1 million points
• 1 GSa/sec max.
• 5. 7” display
Get a Great Scope
for Only $329!
Buy Now Rigolna.com/1052