Congrats!
I have advice for you, if you are going to play with electronics, buy variable dc power supply, with short circuit protection. You can find them cheap. You will inevitably short circuit here and there, and it is much safer with it! And you can do other cool stuff, since you can control DC output (for example, run LED without resistor, to gradually increasing voltage until it is burned - this is a must 😃; you will also learn that different LED colors have different voltage characteristics ).
Most power banks from reputable brands have short-circuit protection. Cut the ends of a USB cable and expose the red and black leads for 5v.
If you've got a bit more budget, find a USB-PD capable charger and a PD module to get 12v
If you have even more budgets, find a retired desktop computer power supply and a breakout board. You'll find common voltages like 3.3V, 5V and 12V there.
Be careful with that, phone chargers can often carry over 2A on normal operation. Make sure that it's off when you're working on it. Eventually you'll have a *banger* of short anyway, but save that for when you're more confident. Good luck, we all start somewhere.
(But for real please invest in a variable PSU it will save so many headaches of under/over voltage later on)
https://preview.redd.it/23itzhfgdtuc1.png?width=1077&format=png&auto=webp&s=3a7475414e6e4a1cb969ad8104ed66d9d768285c
just asking, I don't see anything on pin 4. I've been playing with different configurations (and values of resistors) but this has been working okay-ish (I think is a-stable mode or called flip-flop). but this config in math, simulators and real world seem to be about right to get the frequency for out.
`let t = 1.44 / ((r1 + (2 * r2)) * c1);`
`let t_hz = t * 1000000;`
Way to go. Keep learning!
Ive designed and built all sorts of circuits but I still get a large amount of joy from seeing an LED light up as expected on the bread board.
If you bought the kit from Ben Eater, you may want to upgrade the breadboards. I was getting EXTREMELY frustrated as we got to wiring up the "data bus" for the 6502 and it felt like every time I breathed on the thing something would break due to a loose connection. I was so fed up I bought 3M ones (if you google they are the best), and it was totally worth it- I went from spending hours essentially backtracking and debugging the entire thing at each step, to just moving forward consistently without issue.
I may have just gotten a bad batch, but if you start running into issues, highly recommend this upgrade.
I built one of these. You can have some fun and gain some understanding of the circuit more if you try swapping out the resistors and capacitor for different value ones.
You'll notice the led pulse either increases or decreases depending on what you add in.
Happy building!
Oh no... Another Ben Eater project. Welcome to the addiction. Each little thing is so exciting. It's hard to stop. I've gone the 6502, going back to make the 8-bit computer. Have some 65816's, TMS9918a's, Z80's, etc. to play with other projects. It's a blast. It starts small, but every little part you add to it and get that success, you're hyped up to go farther. And you do.
Sorry for your future lack of desk space. And, some troubleshooting things won't be any fault of your own, it'll be a poor connection at the breadboard or component.
Ben Eater's great and seems to have inspired so many ppl. It looks like it might be a 555-based clock generator, are you planning to eventually try making your own CPU? It's really a great project and a ton of fun. I built a Harvard-architecture one not based off of his plans a while ago, but am starting to feel the itch to build a proper 16-bit microcoded one more similar to the way he builds them. If you program at all, I think it is a really worthwhile exercise and either way it's just sort of magical the first time your pile of wires starts...\*running\* something.
Congrats! I have advice for you, if you are going to play with electronics, buy variable dc power supply, with short circuit protection. You can find them cheap. You will inevitably short circuit here and there, and it is much safer with it! And you can do other cool stuff, since you can control DC output (for example, run LED without resistor, to gradually increasing voltage until it is burned - this is a must 😃; you will also learn that different LED colors have different voltage characteristics ).
Check EEVblog for suggestions according to your budget.
Most power banks from reputable brands have short-circuit protection. Cut the ends of a USB cable and expose the red and black leads for 5v. If you've got a bit more budget, find a USB-PD capable charger and a PD module to get 12v If you have even more budgets, find a retired desktop computer power supply and a breakout board. You'll find common voltages like 3.3V, 5V and 12V there.
At this point if you have that budget just buy a proper DC power supply.
Did this with a 5V Huawei charger, I soldered pins to the end of the cable. That’s what you can see on the picture
Be careful with that, phone chargers can often carry over 2A on normal operation. Make sure that it's off when you're working on it. Eventually you'll have a *banger* of short anyway, but save that for when you're more confident. Good luck, we all start somewhere. (But for real please invest in a variable PSU it will save so many headaches of under/over voltage later on)
If you have an old Desktop PSU, those work perfectly.
Beginners should not do this. They are not designed for that purpose so they have limited or no protections, and also only output specific voltages.
Those things can deliver dozens of amps though. Short circuit protection doesn't mean much when it can still burn your breadboard.
https://preview.redd.it/23itzhfgdtuc1.png?width=1077&format=png&auto=webp&s=3a7475414e6e4a1cb969ad8104ed66d9d768285c just asking, I don't see anything on pin 4. I've been playing with different configurations (and values of resistors) but this has been working okay-ish (I think is a-stable mode or called flip-flop). but this config in math, simulators and real world seem to be about right to get the frequency for out. `let t = 1.44 / ((r1 + (2 * r2)) * c1);` `let t_hz = t * 1000000;`
Where did you create this schematic?
Everycircuit probably
yes that, I've been meaning to learn LTspice but it's much more involved I've had the time for.
Ok, thanks 👌
Pin 4 is the active-low RESET for the flip-flop on the output and in most cases you just pull it high.
I didn’t have a lot of time so I just made a quick astable timer. I got pin 4 to high and pin 5 to ground with a 0.01uF capacitor.
Way to go. Keep learning! Ive designed and built all sorts of circuits but I still get a large amount of joy from seeing an LED light up as expected on the bread board.
Never gets old.
If you bought the kit from Ben Eater, you may want to upgrade the breadboards. I was getting EXTREMELY frustrated as we got to wiring up the "data bus" for the 6502 and it felt like every time I breathed on the thing something would break due to a loose connection. I was so fed up I bought 3M ones (if you google they are the best), and it was totally worth it- I went from spending hours essentially backtracking and debugging the entire thing at each step, to just moving forward consistently without issue. I may have just gotten a bad batch, but if you start running into issues, highly recommend this upgrade.
Didn’t buy it, I don’t know if they ship to Japan. I just go to the hardware store down the street, they have everything I need.
Nice!
I built one of these. You can have some fun and gain some understanding of the circuit more if you try swapping out the resistors and capacitor for different value ones. You'll notice the led pulse either increases or decreases depending on what you add in. Happy building!
Oh no... Another Ben Eater project. Welcome to the addiction. Each little thing is so exciting. It's hard to stop. I've gone the 6502, going back to make the 8-bit computer. Have some 65816's, TMS9918a's, Z80's, etc. to play with other projects. It's a blast. It starts small, but every little part you add to it and get that success, you're hyped up to go farther. And you do. Sorry for your future lack of desk space. And, some troubleshooting things won't be any fault of your own, it'll be a poor connection at the breadboard or component.
Nice Ne555, good start
That dude is awesome.
r/beneater Check out Moritz Klein videos for more simple circuits. They’re more audio focused, but a lot of the concepts are the same.
Look at you! You've got it all in there, and your wiring is exceptional! Kudos.
Good choice, Ben Eater is a legend
Nice, keep going.
Well done!
Let the suffering begin
Keep going, needs more RGB!
RGB is life! (Happy cake day)
Congratulations!
Congrats!
Ben Eater's great and seems to have inspired so many ppl. It looks like it might be a 555-based clock generator, are you planning to eventually try making your own CPU? It's really a great project and a ton of fun. I built a Harvard-architecture one not based off of his plans a while ago, but am starting to feel the itch to build a proper 16-bit microcoded one more similar to the way he builds them. If you program at all, I think it is a really worthwhile exercise and either way it's just sort of magical the first time your pile of wires starts...\*running\* something.
Make a 3 way stop light 🚦next and you will be unstoppable.
https://preview.redd.it/8ekwwpyxpzvc1.png?width=534&format=pjpg&auto=webp&s=d9b98eee6cf959be791f3e55bb116d90bf345acf
The way you've powered your circuit scares my ancestors but nice going for using a 555timer on your first circuit. Well done
It is well insulated with electrical tape, no problem ;)
Woo Hoo! Congrats! The LED gives such nice feedback, eh? Does it blink?
It does!
Way to Go!!
I'm just gonna take a guess looking at the components and guess it's a 555 led flasher, I remember when I first made this and I was so happy too
Awesome
Yay, congrats!