What exactly can you do with iomixer? 

Tell me what firmware to flash matekH743 or matekH743bdh to work dhot? is there any difference? Dshot on firmware will work matekH743?

This would be awesome if it was made open source! other microcontrollers can be added! community can add new features!

The hardware is open source, but I'm planning to sell the firmware which is what 97% of my development effort went into.

​@iforce2d do you have a website where you sell? I'm fairly new to coding and want to play with one. Thank you.

You might like this one too: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6m7DkQfEKW0.html

@@iforce2d Sweet!

When you say 'prop', if you're talking about for movie or theater sets, yeah that occurred to me too. They could be controlled by an operator over radio, or MIDI events could be played from a DAW to play a canned sequence of events. The 37 servo outputs could be handy in animatronics...?

@@iforce2d absolutely. Also for the simple screen and led control over radio or reacting to the environment. Most electronic props are done with either pic microcontrollers or FPGAs -not much Arduino really- and all the propmasters I know would give their legs for how easy that looks to use. I've shared the video to a couple I know to see what they think. Might be a weird unintended industry you solved issues for

@@chefgeoffreyexcellence4254 : I hope the people you shared the video with are OK with being described as "weird" and "unintended"! 😜 🥴

😂

funny ;) .. I took me a while to put /configurator behind the domain ^^

The hardware is open but I'm planning to sell the firmware. btw check your spam box.

@@iforce2ddone thanks

The benefit of arduino though is price, you can get a attiny version for less than a dollar that can handle pretty much any simple input output sketches and weighs like 2 grams. Maybe make one and sell it in the hobby shop.

i thought the same.

@wifiguy_nz : Did you mean "nonsense detailed info", or "no-nonsense detailed info"?

In the previous video I briefly showed starting it up: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-h-Y8iPSBVRs.html It's only a conduit between the device and the browser so there's not really any set up to do, you just run it.

@senorjp21 : That would be selling it short... the range of capabilities is so vast it deserves a name that tickles your interest:... something like "iomixer" perhaps? 😜 👍

If you mean a new peripheral device, eg. a different type of IMU or barometer etc, then no, it would require me to add it. This system is mainly for those who don't know how to code and don't want to learn, but still want to get something done. People capable of writing device drivers would likely be better off setting up their own custom firmware.

I will sell some boards but the hardware is open source, so ideally if it becomes popular I can eventually just sell the firmware.

So far I'm having the boards made a handful at a time by JLCPCB, it's not really costly enough to require outside capital support. The hardware is open source so in the long run I'm planning to sell just the firmware, which is where 97% of my development effort goes. I'm thinking of making a pick-and-place to assemble boards at home which would be the biggest up-front cost, but I think I can cover it.

@@iforce2d how much are the boards costing you to make? I'd like to get ahold of a few.

From JLCPCB it's about $25-30 each at the moment depending on exactly which components are mounted, email me for the details if you want to order your own. You'll need to solder on a bunch of pin headers to get it into the state shown in the video.

This is not for arduino, and not compiled either. The nodes are held in memory and each one does it's thing based on how the properties are set. When you click 'upload' all nodes are discarded and all peripherals de-init to get back to the starting state, then everything is set up according to the new config. I suppose you could almost call it an operating system of sorts. Yes I developed all of it. I studied computer science at uni in the late 90's, but that was mostly Java that never ended up helping me much in the real world. For this particular project I would have learned it all after leaving school, namely C/C++, STM32 HAL, PHP, HTML, JavaScript, MySQL.

The idea is it will be attractive for people who don't know how to code or don't want to. I too like to know how everything works, but there are also people who just want to use a barometer without knowing the details of its I2C registers.

@Toro-Tor : I think you should get one and try it. Then you can add it to the list of "Things I tried, and blew up!" 😜 😵‍💫

I'm using paper.js

That would be interesting, not sure if possible, but being a console program with no graphical component the relay server is relatively easy to port. It needs to open a serial connection on one side and a websocket on the other, and I think it would need USB OTG capability too. To answer your question, it's not open-source but I might look into this further sometime. Failing that, a RaspberryPi ZeroW works well and is pretty small.

@iforce2d The ESP32-S2 or S3 should be able to do websocket to USB serial host. It can host the web side, but gives some JS console errors if I just use the downloaded files. (Wasn't expecting that to actually work, just wanted to see if it would fit and load.)

There is a MIDI out plug on the controller which goes to a pin on the iomixer. It's a UART connection which sends a message when some even happens, like a note being pressed/released, or a control dial/slider being changed. If you mean the physical connection, I had to make up a cable from a 3.5mm audio jack and soldering a bit onto the other end: www.iforce2d.net/tmp/wc245225.jpeg

As mentioned in the video title: iomixer. See the links in the description for more info.

I'm not sure where you saw that so maybe the following is incorrect. From what I saw in one of his sample project videos, a three position toggle switch produced a float output. I think it was 0, 0.5, and 1 reported as a float.. Three states for the three positions. So not really digital (0 and 1)

That's a fair question :) I didn't really explain it in this video, but each node has an output value which is the green text we see shown below it. Since nodes can be connected to other nodes in a bazillion possible combinations, it's easier if the value type passed between them can be standardized as much as possible, even if the data type is larger than necessary for some cases. For a numeric quantity, float is the most convenient - a float can represent an integer, but an integer cannot always represent a float. A float is four bytes, which is large enough to hold a 3-byte color value for nodes that output a color type. The data being passed between nodes is actually 5 bytes in total, where the fifth byte contains flags that describe what type of value the main four bytes are, which is necessary for the downstream node to know how to use the value it is given.

@@tinayoga8844 look at the digital input at 2:30 and note the data type of its output value Chris has explained why he uses a float for a digital output in his reply to my query

@@iforce2d Thanks for the explanation. Because you use a float for a digital value is it safe to use equality when testing the value or is there a chance that a value could be say 0.9999999 rather than 1.0000000 ? Would it be safer to test for say >= 0.5 for HIGH/true and < 0.5 for LOW/false ?

@Bob There are many cases where a node provides a boolean "true/false" result. For example a Unary Operator node with the "is negative" test will always output a zero or one. In those cases you can depend on the output being perfectly zero or one, and a Digital Input node is one such case. On the downstream side, when a node has an input property that will be treated as boolean, it will consider any incoming value above 0.5 to be "true". Thanks for the questions, this is exactly the kind of thing I need to iron out in my next big task... documentation.

I'm using an unofficial RU-vid client on my phone, so I can pinch to zoom right in on stuff like that... which I sometimes do on autopilot and wonder why it looks so bad quality.