Hi,
I am new to Arduino and my post is quiet similar with ryannb's in 2021. Difference is that i still didnt get any arduino yet not knowing which will be the best arduino for this use
Basically i need the sensor's data to be translated to CC and PC midi data.
This midi data is recognized by a software ( LiveAbleton / Max ) and assigned to a specific CC ( macro or individual ).
Challenges
I have already little experience from OSC about sensors reliability, sensitivity and wireless connectivity , so i would start first with one sensor ( wheather
IR ( infraRed -On/Off) or
HC-SR04 ( CC signal=1 starts at 400 cm, signal=127 at 150 cm )
one USB cable for signal transport
Has anyone any suggestion about this first prototype, what type of Arduino should i be aming at ?
Red a lot about the ATmega 3224 ( micro, arduino pro,leonardo ..lately also about Teensys. What would be the best choice for a beginner ?
Thanks for not shouting at us. 
Please don't force us to search for that post, if you have a direct link poist it here, it will be better for us.
Ok sensor for doing what? (ok, this question could be answered if you show us the original project...).
Anyway, if you just need something to detect an off-on status, I'd choose the IR sensor, much simpler. If you still think about ultrasonic I strongly suggest you to use HY-SRF05 instead of HC-SR04 because I had almost every time problems (many batches are faulty and stuck to 0 cm distance).
At the moment I can reply "any", but could change based on the type of connection you need to the MIDI device, if an expander you could even use a standard MIDI OUT (handled by either physical UART, or SoftwareSerial), or if you need that with a PC you could still use serial and a serial-to-midi software like Hairless MIDI.
But first of all show us the project you're referring to.
Start with the basics, the UNO.
Thank you for your replies and comments.
At this point I cant show you anything because, as I mentionned, i didn t buy an arduino yet
However i can describe more precisely my project.
A stage performer/dancer will be moving within a precise place and will interact live with IR and ultrasonic distance/sensors triggering midi-events/sequences and all sorts of software controls in a PC. For that I would use a Max plug-in ( integrated in abletonLive ) and available for connectivity with an Arduino; so i am looking for an Arduino with the most effective configuration possible ( hardware - software )
I have already been working with sensors and kits from Interface-Z - Cartes capteurs, moteurs, lumières, Mid, OSC et DMX - Convertisseurs et commandes en installations interactives but experienced number of issues ( latency and data programming )
And thank you for your advices on Hairless and ultrasonic HY-SRF05 !
rgds
At the beginning of my project , I would need it mainly to send MIDI CC and eventually MIDI PC . Would the UNO "understand" sysEx midi messages from a PC ?
Don't use an Arduino UNO if you plan on sending MIDI to your computer over USB.
See Control Surface: MIDI over USB for an overview of boards that support MIDI over USB.
thank you PieterP for your link. That confirms my first choice, i will start with a Teensy 4.1. , HY-SRF05 and a IR sensor.
Any other special recommendation about this starting configuration ? hardware Kits ? web shops ? thank you again for your support. b rgds
This seems to be a 5V device, the Teensy 4.1 is 3.3V only.
thank you PieterP for your link. That confirms my first choice, i will start with a Teensy 4.1. , HY-SRF05 and a IR sensor.
Any other special recommendation about this starting configuration ? hardware Kit or or thank you again for your support
Not exactly, I used Hairless MIDI to "convert" USB-serial data into MIDI events.
Correct. The HY-SRF05 is a 5 V.
is there something similar in 3.3 V ?
Thank you
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