How to wire these mini speakers?

[Avo Mk8]

I’m not sure if I’ll use the seperate c type connector but yes I noticed he took it off and used a seperate one, I might just use the original since that doesn’t affect anything but the placement.

Good idea

I’ll probably order the single pole 2 way switch so it’s the same, would that make it any safer though?

If you had a centre off 2-way switch, so one way was charge, centre was battery disconnected, and the other way was "On" I guess that might be safest.

What type of fuse would I need?

I'd suggest a 5A

Didn’t think this could be that dangerous

I recommend you do a bit of research on the safety of Li cells. Don't short or persistently overcharge your cell, and please don't muck about with them as some YouTube video's delight in showing!

Good luck with the project.

 

[blennymar]

Good idea

If you had a centre off 2-way switch, so one way was charge, centre was battery disconnected, and the other way was "On" I guess that might be safest.

I'd suggest a 5A

Didn’t think this could be that dangerous

I recommend you do a bit of research on the safety of Li cells. Don't short or persistently overcharge your cell, and please don't muck about with them as some YouTube video's delight in showing!

Good luck with the project.

So this switch in the pic should work better right?
Yeah I’ll do some research on that, but the little set up from the video I linked is dangerous?

I’m just unsure if I will be able to wire everything with the center off switch and the fuse since it’ll change the set up a bit.

 

[Avo Mk8]

So this switch in the pic should work better right?

It won't work 'better'. It would just be a different way of doing it! But I understand what you mean, would it make your speaker setup better? It would mean you could turn the unit properly "off", whereas in my sketch the charger is permanently connected across the battery, which I think should be OK, but I haven't seen any technical info to justify that assumption!

Yeah I’ll do some research on that, but the little set up from the video I linked is dangerous?

The setup is not "dangerous" any more than any product containing a lithium battery is dangerous. I was trying to warn you that constructing electronics with a lithium cell or battery can be dangerous if you don't take care In what you are doing while you are building it.
There are many instances of lithium batteries catching fire and/or exploding. I just want you to be aware that you must not short the terminals of your cell together, or vastly overcharge it, for your own safety. You owe it to yourself to understand what you are getting into, so you don't accidentally injure yourself!

I’m just unsure if I will be able to wire everything with the center off switch and the fuse since it’ll change the set up a bit.

Putting an in-line fuse in the wire from the positive battery terminal before it goes off to wherever the circuit shows is hardly a significant change, and would provide protection where at the moment there is none.



I would just like for you to educate yourself about the potential (!) dangers of batteries. Just because your project is not using mains electricity does not mean there are no hazards!

 

[blennymar]

It won't work 'better'. It would just be a different way of doing it! But I understand what you mean, would it make your speaker setup better? It would mean you could turn the unit properly "off", whereas in my sketch the charger is permanently connected across the battery, which I think should be OK, but I haven't seen any technical info to justify that assumption!

The setup is not "dangerous" any more than any product containing a lithium battery is dangerous. I was trying to warn you that constructing electronics with a lithium cell or battery can be dangerous if you don't take care In what you are doing while you are building it.
There are many instances of lithium batteries catching fire and/or exploding. I just want you to be aware that you must not short the terminals of your cell together, or vastly overcharge it, for your own safety. You owe it to yourself to understand what you are getting into, so you don't accidentally injure yourself!


Putting an in-line fuse in the wire from the positive battery terminal before it goes off to wherever the circuit shows is hardly a significant change, and would provide protection where at the moment there is none.

View attachment 106319

I would just like for you to educate yourself about the potential (!) dangers of batteries. Just because your project is not using mains electricity does not mean there are no hazards!

Awesome, I’ll buy the fuse and the center off switch and finally try to wire it all up. Thanks for all the advice, and yeah I was aware that these batteries can be very dangerous but I actually forgot, thanks for the heads up
I’ll post it once I try it all out.

 

[blennymar]

So I’m trying to set the step up converter to 5v and for some reason it only lets me go down to 6v, Is my voltmeter a cheap one and just not reading right or maybe I’m doing something wrong? I tried turning it both ways.

 

[Avo Mk8]

So I’m trying to set the step up converter to 5v and for some reason it only lets me go down to 6v, Is my voltmeter a cheap one and just not reading right or maybe I’m doing something wrong? I tried turning it both ways.

I think it very unlikely to be a problem with the multimeter, and I don't see you are doing anything wrong.
You seem to be using AA cells rather than the lithium battery I thought you were going to use, but I don't think that should be a reason for the higher minimum output voltage,
I'd be more inclined to blame the converter as being the problem (eg component outside tolerance or faulty?)
It might be worth putting a small load across the converter when setting it, to see if that changes its behaviour. Have you got say a 100 ohm resistor, or failing that maybe a small filament bulb of 6V or above, eg Christmas tree light! Put that across the output and see if it stays at 6V, or now will go down to the specified 5V.
I can't see anything in the spec for the amp suggesting it would be OK to run it from 6V unfortunately.
Failing that you could try asking the supplier why it only goes down to 6V ! I wondered if it was something basic such as the adjustment potentiometer slider not going to the end of its track correctly!

 

[blennymar]

I think it very unlikely to be a problem with the multimeter, and I don't see you are doing anything wrong.
You seem to be using AA cells rather than the lithium battery I thought you were going to use, but I don't think that should be a reason for the higher minimum output voltage,
I'd be more inclined to blame the converter as being the problem (eg component outside tolerance or faulty?)
It might be worth putting a small load across the converter when setting it, to see if that changes its behaviour. Have you got say a 100 ohm resistor, or failing that maybe a small filament bulb of 6V or above, eg Christmas tree light! Put that across the output and see if it stays at 6V, or now will go down to the specified 5V.
I can't see anything in the spec for the amp suggesting it would be OK to run it from 6V unfortunately.
Failing that you could try asking the supplier why it only goes down to 6V ! I wondered if it was something basic such as the adjustment potentiometer slider not going to the end of its track correctly!

I’m using those batteries just to adjust the step up converter, I will be using the lithium battery once it’s to 5v.
I have 5 step up converters(all the same) so I’ll try another one to see if that’s the problem

Btw I do have those 3 pin leds, I think it’s a cathode? But idk where I’d have to wire that

Edit: I tried the lithium battery to set the voltage on the step up converter and it’s even worst only goes down to 7.4v :s

 

[Avo Mk8]

Yes try others! It's a bit concerning that the output voltage is not very stable with changing input voltage. I would have expected better, but I've no knowledge of this part other than reading the ads on the net!
I would encourage you to try a load on the converter, but preferably not by using the amplifier yet!
Good luck with the experiments.

 

[blennymar]

I tried another step up converter, and it’s the same thing, and even added 100 ohm resistor made no difference, then I tried a 400 ohm resistor and nothing is making a difference for the output, lowest keeps at 7.3 with the lithium battery, can’t believe how complicated this is

 

[Avo Mk8]

I tried another step up converter, and it’s the same thing, and even added 100 ohm resistor made no difference, then I tried a 400 ohm resistor and nothing is making a difference for the output, lowest keeps at 7.3 with the lithium battery, can’t believe how complicated this is

I've just noticed you have the multimeter set on the a.c. voltage (wavy line symbol) setting. There is a d.c. voltage range (straight line symbol) selectable round anticlockwise from your present setting, and you want it set on the 20V range for these measurements.

You might be getting misleading readings measuring dc on an a.c. range, especially if something is oscillating here. I'm not sure this is the only problem though.

 

[blennymar]

I've just noticed you have the multimeter set on the a.c. voltage (wavy line symbol) setting. There is a d.c. voltage range (straight line symbol) selectable round anticlockwise from your present setting, and you want it set on the 20V setting for these measurements.
You might be getting misleading readings measuring dc on an a.c. range, especially if something is oscillating here. I'm not sure this is the only problem though.

I just noticed the same! I mean I didn’t know I had it wrong until a few mins ago I watched a video and saw someone has the voltmeter setting on the straight line, being a noob sucks lol, it’s reading 5v on the straight line from what I see? So I guess that was the problem?

 

[DPG]

I just noticed the same! I mean I didn’t know I had it wrong until a few mins ago I watched a video and saw someone has the voltmeter setting on the straight line, being a noob sucks lol, it’s reading 5v on the straight line from what I see? So I guess that was the problem?

That sounds better!

I'm surprised at the reading you got on the AC range though. I'm guessing the output of the voltage converter is probably not particularly smooth.

 

[Avo Mk8]

See, it's not complicated really
Off you go!

Have you any info/ part no. on the dual colour led you wanted to connect. I seem to remember from the video it replaced two led's on one of the boards, but I may be misremembering.

 

[blennymar]

See, it's not complicated really
Off you go!

Have you any info/ part no. on the dual colour led you wanted to connect. I seem to remember from the video it replaced two led's on one of the boards, but I may be misremembering.

It’s not, but not knowing this stuff can make it confusing lol.
This is the info for the leds

 

[Avo Mk8]

Thanks I'll have a look, though might be tomorrow!