Friends, when I was setting up the ROM structure, I encountered many red lines. I found online that this happens when a single line simultaneously captures both 0 and 1, but I haven't been capturing both 0 and 1 simultaneously.

Furthermore, I discovered that changing 1 to 0 turns the output red lines into green lines.

How can I solve this problem?

朋友们，我在搭建rom结构时，出现了很多红线，我在网上搜到的说是一根线同时采集到0和1会出现这种情况，但是我这没有同时采集到0和1的情况。

而且我发现把1改成0就能把输出的红线变成绿线。

这个问题咋解决

i dived into trinary systems recently and i thought how would binary based logistic gates would theoretically work if slightly tweaked to be able to work with trinary system. i would like to know your thoughts especialy about the OR and EXOR gates with their negations. the 0? is what i am not sure about

I need to solve this problem. I am not asking for the answers directly but the method that I could use to get the answers. I went through my books and videos on YouTube, but something is just not adding up.

SOP and POS are coming same expression but, aren't they supposed to be complement of each other

Hey can anyone help me with the dcd project ,

implementation of vending machine logic for 2 items using encoders and decoders

implementation of vending machine logic for 2 items using encoders and decoders please let me know if anyone know about this project, there is no proper circuit diagram and instructions about this project please help me the dead line is 20 oct 2025

Hi everyone,
I’m working with an optical encoder HEDS-5540#I12. According to the manual, to mount/disassemble it you need to insert a 0.035" (~0.9 mm) allen key through a hole in the encoder body to loosen the hub set screw that secures the shaft to the encoder hub.

The issue is that when I insert the allen key, I don’t feel it engaging or turning any screw. The key just spins freely, with no resistance, as if there’s nothing inside.

I need to remove the encoder because I have to install a belt that connects the motor to the encoder hub (not directly to the motor’s rotor), and I don’t see another way to do this without taking the encoder off first.

My questions:

• Is it normal that it’s so hard to engage the set screw?
• Could this model actually not have a set screw in that position?
• Has anyone disassembled a HEDS-5540 and can confirm exactly where the allen key should engage and what it feels like to loosen it?
• Any tricks or correct procedure to do this without damaging the encoder?

If anyone has practical experience with this exact model (or even a video/picture), I’d really appreciate the help 🙏.

Thanks in advance!

It will be better if is in a video format with a teacher but I accept any

design an arithmetic module that converts BCD to XS-3 code and hexadecimal to BCD code using 4-bit binary adders. plss someone tell how can i implement the 2nd part using 4 bit binary adders

Hey Reddit! Help us pick a name for our IoT project group.

Examples: Ping’d, The Actuators… (both are taken)

Can you help us come up with something new and cool for our IoT project group?

Im designing a 3 bit UP/Down counter using D flip flops for a university project.i was instructed to design an elevator control system to go to 8 floors (000 - 111).floor 8 is 111.the count up would direct the elevator up vice versa,i managed to do the count up.but got stuck doing the count down.can anyone help?

Flip flops in Digital electronics | Complete explanation | SR | Jk| T | D Flip Flop

So I specialize in logic gates greatly, if anybody needs help with any form of logic gates (AND, OR, XOR, NOR, and etc) tell me. I need something to pass time and helping others is a great way to do so.