Old Style 1802 Computer Has MMU
When you think of an MMU — a memory management unit — you probably think of a modern 32-bit computer. But [Jeff Truck] has a surprise. His new RCA 1802 …read more Continue reading Old Style 1802 Computer Has MMU
Category Archives: Microcontrollers
MicroLisp: Lisp For Microcontrollers Now Has Lisp-Based ARM Assembler
In a way it feels somewhat silly to market a version of Lisp as targeting resource-constrained platforms, considering the systems it ran on back in the 1960s, but as time …read more Continue reading MicroLisp: Lisp For Microcontrollers Now Has Lisp-Based ARM Assembler
Clock Runs Computer In Slow-Motion
At the heart of all computers is a clock, a dedicated timepiece ensuring that all of the parts of the computer are synchronized and can work together to execute the …read more Continue reading Clock Runs Computer In Slow-Motion
Three Pitfalls in I2C Everyone Wishes Weren’t There
The best part of I2C is that it is a bus that is available just about anywhere, covering a vast ecosystem of devices that offer it as a hardware-defined interface, …read more Continue reading Three Pitfalls in I2C Everyone Wishes Weren’t There
Presence Sensor Locks Computer When You Step Away
Having a computer that locks its screen after a few minutes of inactivity is always a good idea from a security standpoint, especially in offices where there is a lot …read more Continue reading Presence Sensor Locks Computer When You Step Away
Presence Sensor Locks Computer When You Step Away
Having a computer that locks its screen after a few minutes of inactivity is always a good idea from a security standpoint, especially in offices where there is a lot …read more Continue reading Presence Sensor Locks Computer When You Step Away
Much Better VGA From An ESP32
The ESP32 series from Espressif have been a successful line of products, offering a powerful microcontroller with on-chip wireless networking. There’s a snag though in their practice of calling all …read more Continue reading Much Better VGA From An ESP32
An ESP In Your Mini TV
When miniature LCD TVs arrived on the market they were an object of desire, far from the reach of tech-obsessed youngsters. Now in the age of smartphones they’re a historical …read more Continue reading An ESP In Your Mini TV
How Hardware Testing Got Plugged Into a Continuous Integration Framework
The concept of Continuous Integration (CI) is a powerful tool in software development, and it’s not every day we get a look at how someone integrated automated hardware testing into …read more Continue reading How Hardware Testing Got Plugged Into a Continuous Integration Framework
Dual Channel POV Display also has Nixie Tubes
What’s a tachyscope? According to [Daniel Ross], it is an animated display from an alternate timeline circa 1880. The real ones, of course, didn’t have LEDs and microcontrollers. The control …read more Continue reading Dual Channel POV Display also has Nixie Tubes