Uploaded February 2021 | Updated September 2026, 1 week ago
In this video I convert the ALU control to PCB's, it doesn't really reduce the breadboard count since most of the work was done by a diode matrix pcb already. It does replace some circuitry on the remaining breadboards but I'd need to do a re-organisation to remove one.
If you want to understand the workings of this circuit, you should watch:
youtube.com/watch?v=LkM9tBCAros (Alu control)
youtube.com/watch?v=Slm3yZyVidc (Diode Matrix 1/2)
youtube.com/watch?v=UXz_rTgeAEc (Diode Matrix 2/2)
0:00 Introduction
1:14 EDA Design
18:33 Soldering
25:24 Install and Test
Notes: Since editing I've used the circuit a lot and not seen a repeat of the bad connection. I did however discover that resistor associated with the ADD led wasn't connected properly, I had to resolder that for the LED to work.
In this video I convert the ALU control to PCB's, it doesn't really reduce the breadboard count since most of the work was done by a diode matrix pcb already. It does replace some circuitry on the remaining breadboards but I'd need to do a re-organisation to remove one.
If you want to understand the workings of this circuit, you should watch:
youtube.com/watch?v=LkM9tBCAros (Alu control)
youtube.com/watch?v=Slm3yZyVidc (Diode Matrix 1/2)
youtube.com/watch?v=UXz_rTgeAEc (Diode Matrix 2/2)
0:00 Introduction
1:14 EDA Design
18:33 Soldering
25:24 Install and Test
Notes: Since editing I've used the circuit a lot and not seen a repeat of the bad connection. I did however discover that resistor associated with the ADD led wasn't connected properly, I had to resolder that for the LED to work.
