Annotated boards V1: buzzed out and hooked up. Note, I have no schematics, this is what I assume as I haven't tested yet. Just self notes. DOCK: Pioneer chassis has a self charging dock on the underside. Power board has a port J2 to control a solenoid...
Ok, now it is kind of proven that binary CPLD (or FPGA) may implement ternary logic, but how we can integrate it with "true" ternary components, especially when CPLD is 3.3V and TRIMUXes are -5V and +5V? Answer is DG403 chips may do the job: Because...
Got a few of those core memories from a Russian PDP-8 clone, the Saratov-2, it´s 64x64 core matrix, forming 4096 bits.I´d need four of those planes for the computer, one plane for each bit of the 4-bit word. The thing is that they are...
Many times we have seen advertising lighting signs of different colors or images with texts sliding from left to right or vice versa, mostly in shopping centers or businesses, and we wonder how expensive it is to have one. But here we will learn how...
Serial Input / OutputOne of the key methods of input and output with my home brew is serial communications to and from my development machine (a modern Windows 10 laptop).The serial commmunication protocols I remember from in the 80s and early 90s was...
I'd like to talk a little about some of the changes that cut this project down to almost 1/3rd of it's original size. In earlier logs I already mentioned the USB Device Firmware Upgrade (DFU) support, extra USB descriptors, accurate baud-rate calculation,...
With the new harvest, I estimate that the perfect and maximal orbits under m=1M is around 100K. This starts to make quite a large .h file to include in the sieve generator. Not that it's such a concern but scalability, you know.... And embedding such...
My first step was to figure out the transmitter's frequency. Using a spectrum analyzer, I saw that it sent a signal at 433.92 MHz once every 12 seconds, using what appeared to be on-off keying. I also searched FCC filings using the Maverick's FCC ID...
The foundational base for this project required some sort of oven. From the design perspective, I needed an oven, preferably one with a good heat-up slope, a temperature sensor, a solid-state relay that was capable of handling “house-hold”...
1 Intro The Enecsys Gateway is a Zigbee gateway allowing communications between the Enecsys microinverters and their monitoring backend. The Enecsys company is unfortunately defunct since 2015 and their DNS domains have been taken over by a UK enecsys...
This is a follow-up of my "Breadboard VGA from EEPROM" project that was covered here [hackaday.com] two weeks ago.The video shows the new circuit's first signs of life. It is not really stable yet, but definitely getting somewhere. Halfway the build...
French article in GNU/Linux Magazine France If you wonder why, just click and read the log. For the what, check Definitions and Draft as well as PEAC vs LFSR for a comparison. The original algo/project name was "Fibonacci checksum" but it later...