I wanted to connect replacement LCD to the original LCD connector, with no "ugly hacks" like interfacing with VGA connector and other workarounds. The original LCD used 9-bit TTL RGB interface (3 pins for red, 3 pins for green, 3 pins for red), which...
Instruction Set Shuffle Having ADD and SUB in different op code pages seems wrong, as SUB (ACC = Value - 1) can be coded as: LOAD ValueXOR FADD 1XOR F Yes, the carry flag works. The current op code set would be: LOAD ValuePAGE 8SUB 1PAGE 0 No saving!...
Well, finally I was let down by a lack of amps, the batteries I have just arent strong enough to move the limbs without at least doubling them. And I'll need to upgrade the regulators. Such is life...I added a little bit of code to the Pi's monitor....
With the wiring complete I wrote a small program in Python to test the lights, buttons, and switches on the front panel. To be clear this is NOT the KENBAK-2/5 emulator running a program (yet). As it turns out I did have to replace one of the LEDs...
July was a tough month, and August is no different. Due to some components arriving late, I've only been able to start my work on the Hackaday.io project with considerable delay. So I had to catch up with everything and squeeze the entire development...
Back to the workshop for the revenge of the return of the son of the Vintage Ring Oscillator ! This time with a new ally : the ceramic capacitor ! TL;DR : it's 60% faster ! But the V/F curve might look different from @Tim 's experiments... As usual,...
The amazon fairy dropped off a "NES Classic Controller" and a "Classic Pro"The classic pro comes up as a classic controller, The only difference is the analog R and L on the one I have are buttons and just return the max value when pushed. Although this...
So, the results are different than expected, but that is just fine. I'm running my V200 at 2x the speed it came from TI. For those who are TL:DR with my logs, you need a 1.21 kOhm resistor and an 18 pF capacitor. I never ran the MD5 checksums as I didn't...
Microscope slides, 3-D printed parts and the finished test-tube-shaped micro reaction chamber. 2-component 5-minutes epoxy resin adhesive has been used to glue the microscope slides and nipples in place:Leakage test (pass):Populated PCB:Reaction chamber...
So I want to make some notes because if I don't there will be less notes on the 3d 3 servo experiment, and I had a lot of trouble with the code so I want to get as much trouble into my notes. I struggled with the angle of the hiprotate servo in particular,...
Prior art is of huge importance to the open-hardware movement. It prevents that certain markets become locked for 20 years by patent law. Let's generate some prior art with patents. I claim all the claims generated by rewriting all patents in the world...
The question The most asked question is always: "How far can you go with the battery?". And the answer is: "It depends!". The challenge The highest point that the Tour de France has ever passed is the Col de la Bonette at 2802 m (9192 ft). The distance...
15 July 2018 First a word about packaging. I designed the BQ25504 breakout board to be as small as possible because I had in mind the idea that it would become part of an integrated (hybrid) power source. That is, the LiPo battery, solar cell, and BQ25504...
Well, I should have expected the Fibonacci code to work since I already checked out all the previous functions of it. So I'm wondering what isn't going to be working to prevent the ROM code from working. I'm running the ROM v3 code because...
I have continued debugging the hardware mock-up. The fundamental target was to program a simple RPN calculator UI with 6 operations plus a number of scientific functions. The integration with BASIC will come later, after all the hardware components are...