From my experience, if you were to step into a college electronics lab session and ask a student "When would you set an oscilloscope channel to either AC or DC coupling" chances are you'll get something along the line, "AC coupling is for AC signals and DC coupling is for DC signals". While there is … Continue reading AC, DC Coupling on the Oscilloscope: When to Use Which
While experimenting on the practical build of the analogue multiplier, I ran into a problem. The clone ATX power supply that I typically use for my projects is pretty much adequate when testing circuits that need voltages of 3.3 V and upwards. However, when it comes to small signal circuits, such as the analogue multiplier, … Continue reading The Capacitor Multiplier, Power Supply Negative Rail and Mains Earth Referenced Ground
One of the circuits that I've spent an inordinate amount of time investigating this year is the Analogue Multiplier. An analogue multiplier is a circuit block which takes two analogue signals and produces an output which is proportional to their product. Analogue multipliers can be integrated as part of a larger circuit blocks to perform … Continue reading A Practical Implementation of A Two Quadrant Transconductance Analogue Multiplier
So today I was reading up on signal energy and signal power for my Signal Processing class, and I came upon this conundrum that I occasionally have, I am aware of the terms Energy and Power, but what do they mean. Okay for starters, just to get this out of the way, signal energy and … Continue reading Difference between Energy and Power: Building a Simple Intuition
On new year's day (2020), I decided to get reacquainted with GNURadio Companion (grc) to mess around with some Software Defined Radio (SDR) stuff, and set myself off on a new vector of exploration. But for the life of me, I couldn't get things to work right off the bat. The last time I had … Continue reading A Curious Case of GNU(Radio Companion v220.127.116.11/v1.6)
While I was writing my headless tutorial, I ran into this peculiar problem where I could use raspberrypi.local to SSH into the RPi while connected through Ethernet but not while using WiFi. Now this was a fairly new problem, since before this particular instance, I could always use the .local address to SSH into the … Continue reading Why Can’t I SSH into the Raspberry Pi Using raspberrypi.local Through WiFi on Windows?
I'm not a Linux guru by any standards, at best I am an experienced noob. Nonetheless, I have heard of the famed power of the terminal. So a couple of years back when I was faced with a situation where I only had access to the terminal on a Pi running Raspbian, and I needed … Continue reading Controlling the Pi’s WiFi Radio via the Terminal
In one of my earlier posts I talked about how to setup the Raspberry Pi in the least stressful way. Now, I've been using the Raspberry Pi for a couple of years and truth be told, I hardly ever connect a monitor, keyboard or mouse directly, no, I tend to use the Raspberry Pi headless. … Continue reading Off with Your Head – Setting Up the Raspberry Pi Headless
I've been a lone wolf for most of my life. Not because I wanted to, but to some extent out of necessity. There have been very few instances in which I joined a team and it felt like home. The reason why I prefer lone wolfing is because I typically have a very specific vision … Continue reading Will You Eat the Whole Damn Cake Alone – Learning to Delegate
What comes next after you have come up with a plan of action for your big idea, how do you measure your progress?