Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
In order to isolate parts I breadboarded just what you see on the schematic:
If I generate a constant clock signal with the Atmega it's not heard, only Midi input from external device.
I placed a 10uF on pin 7 and I realized the midi clicks were attenuated, so I put a 1000uF and they are gone...
I made a little synth with Arduino (atmega328 standalone really) and it works very good but has one problem.
When Arduino outputs midi notes or clock it makes a *click* noise for each byte (clock is a constant stream of clicks and notes are a little louder click), midi output not pictured in...
Right! Sorry, don't understood. That's the part I don't need. Only the filter.
That's because it can be controlled by the pot directly (signal goes to microcontroller and then sends it to the filter) or it can be programmed to change automatically (again, coming from microcontroller)
Thanks...
I have been on the look for a +-9v LP filter made from LM13700, tried several but they all didn't sound very good for some reason or another.
Knowing that the Shurthi synth sounds awesome, I looked for one of the filters schematics and discovered that it works with +-5v, so it's a perfect match...
I use the 12 volts from an old PC power supply, it has 8A.
What I connect to it has a consumption of around 4,5A
Would it be cool if I remove the fan from it? It's very noisy... or will it get too hot???
Thanks!
Yes, I know it's simplified. The thing is that I need to control each led's color intensity separatedly, so I will need 3 drivers for each led anyway.
On another forum (Arduino) someone proposed to separate the common anode from the three colors and that solves a problem, now if I have 3...
WOW! I think that is exactly how I need to do it.
Sorry, I don't understand why the need to adjust it to 4v.
I was thinking in connecting it like BradtheRad said and getting 6 to 8v from maybe a regulator like this one...
Ok, the led is this one: https://www.alibaba.com/product-gs/712130845/10_Watt_RGB_LED_high_power.html
it is a high power RGB and as you can see on the table you need around 12v for BLUE and GREEN but you need around 6v for RED, and also the leds have a common positive pin.
As this is the case, I...
Ok, I needed a driver for a 12v led and did this: **broken link removed**
(full article explaining everything: **broken link removed**)
Vcc connected to 12v and of course GND to 0v.
It works fine, but now I need the same thing but instead of driving a 12v led I need it to be 6v, but the thing...
I really want to give this another go, because having two trigger buttons will add a lot more functionality to the device.
I corrected the schematics as BradtheRad told me it could work, so it's clear for everybody.
The snare trigger works if the bass it's not connected, I should point out...
THank yo uvery much for answering, I tried adding a diode between the bass pin and the trigger of the bass and another diode between the snare pin and the trigger of the snare sound (tried before and after the other pin of the button but it works in a weird manner)
Well... I might only make it...
Thank you very much for taking the time to read this and help me!
I designed this circuit which I think is a pulse generator, made with a 555 IC, counter and an inverter to generate a ryhtm for the drum machine:
Out of the picture (down) is a hi-hat circuit.
First of all this part is working...
Thank you very much for taking the time to check it for me!!
Now I am thinking in also putting a divider/counter so it can automatically also trigger a snare drum and a bass drum and I should have a pattern! woohooo!
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
