So today via What Does “VCC” Stand For? I learned that VCC stands for “voltage at the common collector”.
Author Archives: Jay Jay
HC and LS logic families
So today I learned that “HC” (high speed CMOS) and “LS” (low power Schottky) are two different types of logic family.
Coupling and Decoupling
Today I read a little about Coupling and Decoupling. Apparently 0.1uF ceramic cap across VCC and Ground pins on a IC will do it.
Installing Zabbix from source
So I’ve had a bit of a go at installing Zabbix from source. I think I got there in the end, but I’m not sure how to auto-start the service… yet.
Public APIs
This via r/programming today: A collective list of free APIs for use in software and web development.
Favourite papers
So there’s a list of interesting papers over here: My favorite papers. I didn’t have time to read them all so I picked The Ubiquitous B-Tree and just read that.
SQL Query Stuck in Statistics State
I had this problem which is explained in greater depth over here.
HiLetGo USB Logic Analyzer
So I got myself a HiLetgo USB Logic Analyzer Device With EMI Ferrite Ring USB Cable 24MHz 8CH 24MHz 8 Channel UART IIC SPI Debug because for USD$12 + shipping how could I not? It came with a video from Amazon about how it works.
Multi-Function Tester
So I got myself this new bit of kit: M328 Diode Triode Capacitor Resistor Transistor ESR Meter Multi-Function Tester. When I opened the box there was no manual. But it turns out a manual is not required! This thing is so easy to use. Just wire up any old component and the device will tell you what it is!
SanDisk Extreme PRO SD
Got myself a 64GB SanDisk Extreme PRO MicroSD card for my Raspberry Pi Model 4B.