Synths as Audio Sound interface - ableton-live

I have an Analog Four MK1 connected directly to the computer and to the speakers and used as an Audio Interface in Ableton.
I will get now an Elektron Analog Rytm MKII. and I wonder if I can play both or I should add an Audio Interface like Focusrite Scarlett 2i2 (2nd Gen)

When you route the audio already through the computer this should be easy with OB2.
Or when you don’t want to use OB2 yet, you can also connect the main outs of AR to the inputs of the A4 so you can mix it in.
You can route the rytm through the analog four inputs and do it that way. just turn on the volume (FX track + OSC1 /Ext In).

Related

is there a way to do plugnplay for arduino?

First Thanks in advance.
Is there a way for an Arduino board to detect what other boards are attached (such as infrared, or servo motor etc) or simple things such as led or push buttons? Basically is there a way to do Plug N Play?
I would like to design a system using an Arduino were the user can mix and match infrared sensors, motors, led. The script would recognize what is attached to the board and respond accordingly. Currently one is forced to hard code in the script identifying what pin is attached to what. Hence if the user pulls out a servo motor and adds an infrared, then the script must be rewritten. This is what I want to avoid.
Thanks.
You started with
user mix and match sensors, motors, led. The script would recognize
what is attached
and later added
Arduino for model railroads, to dynamically add servos, lights and
sensors
These are not the same, narrowing the scope makes all the difference. See my comment for first option. As for building a specific model that will recognize elements, sure, this can be done in couple of ways depending on the topology you intend to implement and in that case the main concern should be:
How will elements/nodes be connected to each other and / or the main board?
If you intend to run seperate wires for each element you could identify them by dedicating one wire for ID and use a different resistor on each, That's complicated and limited and I wouldn't do that.
On the other end you could create a parallel bus that runs from node to node and can be extended as needed, it will have a small number of wires that will implement I2C for instance, and for identification but also as local drivers you would add an ATtiny on each node.

How do I use device registers to configure the operation of a device?

So I'm building a device to measure pressure in a clean room and using a Raspberry Pi Pico with a pressure sensor. I'm writing the code in Micropython and while the sensor is designed to be used right out of the box, I'm interested in how I use the device registers to modify it's operation (as well as other peripherals I have attatched). I understand the registers are 8-bit and how how the hex translates to binary and back. However, the code for the lists all the editable registers and their hex addresses but I have no idea how to modify the bits to turn off/on the features represented by each bit.
Does flipping each bit on/off just change the binary and thus changes the device register hex?
Thank you!

How to make a FSK Rfid Tag that works at 125 kHz?

I am trying for some time to make my own rfid reader following the ideas on the DIY FSK RFID Reader. My primary problem now is that i do not have a specific rfid tag to test the reader so i decided to make my own using also an arduino uno. The only information on the internet which i found is at FSK MODULATED SIGNAL.
I really need to know how to write the code to transmit the id from the tag to the reader. I mention again that the tag needs to work at a 125 kHz frequency and needs to use FSK modulation.
You won't be able to send data to the Reader without special hardware, just adding a wave on some antenna doesnt work for RFID systems with passive tags.
Reason is, RFID-Tags do not actively 'send' waves to the reader, instead they 'modify' (modulate) the reader's field by producing load on the antenna.
Imagine when the tag had an LED switching on and off while receives energy from the reader's RF field by inductive coupling. The reader will notice a change in it's own field when the LED on the TAG turns on/off as the more/less power is drained from the RF field.
This method is used for the TAG -> Reader communication, which is nice for several reasons:
TAG gets power from inductive coupling anyways, modulating the signal through load is alot more power efficient than using power for actively sending.
Smaller/Easier/Cheaper, needs less hardware on the TAG, might even need a separate antenna for sending
Harder to snoop communication as the modulation is harder to detect from distance
tl;dr
A bare ardouino doesn't have the required hardware onboard to modulate the reader's RF field.
Sidenote: transponders are not expensive, you get them for a few bucks. The LF transponders based on T55x7 are really nice for playing around as the can be configured for various modulations (PSK/FSK/etc in different modes), bitrates and more, however the usually come with Manchester modulation enabled by default.

how to transmit data from audiofile to environment via sdr?

I have a sdr-device, an Ettus USRP B200 and I was given the task to convey information from the audio file on the air . I have tried to do this through the program SDR#, but it only works on reception.
How can I achieve audio transmission?
The USRP is a kind of universal transmitter; it doesn't take audio and does a specific kind of modulation to transmit it over the air, but it takes complex samples representing a base band signal that represents the signal as you want to transmit it at the radio frequency.
You will have to use some kind of modulator that converts your audio file to a transmittable complex baseband signal.
Typical analog radio stations use FM (Frequency Modulation). There's plenty of options out there, but I would try to get the GNU Radio live DVD, which comes with GNU Radio, and that has examples how to do FM transmission. It's really not that hard to create a FM receiver, and a transmitter is equally simple.

Extending DS2408 IOs with MAX7219 or 74HC595

I have an idea of building a model traffic lights node with Arduino. One node should serve the whole intersection with all the lights from all directions.
I want to use a 1-wire DS2408 to identify the node by its factory set unique id and have its 8 IOs for different lights.
One node should have more lights (for difficult intersections more than 30-40).
I want to use some LED driver like MAX7219 or shift register like 74HC595 to extend these 8 IOs to 64.
Can something like this be done? Can I use DS2408 (1-Wire 8-Channel Addressable Switch) and extend its IOs?
Or what would you suggest?
I want to use this 1-wire protocol for better scalability and easy node addressing, let's say I want to build a model city with 100 intersections..
Thank you.

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