While the Basic IO example from the FortySevenEffects MIDI library will work on the Minima, when trying it on the WIFI it causes the system to crash and the board will no longer be able to upload anything, even the blink example, citing that:- No device found on cu.usbmodemDC5475C45C282 Getting it…

Well I think I have cracked it. Reading the latest on line cheat sheet I notice that it recommends using pin 40 to the connected to the USB Serial port on the RA4M1. This worked but again like using pin 21 subsequent downloads failed. EDIT :- in the light of the comments below I have changed my an…

[image] Delta_G: set pin 21 as OUTPUT and HIGH then it will connect the USB connector to the R4. I did try that so my setup function is:- void setup() { pinMode(LED_BUILTIN, OUTPUT); // correction for WIFI board pinMode(21, OUTPUT); digitalWrite(21, HIGH); MIDI.begin(4…

[image] Delta_G: wonder if they have 40 and 21 mapped to the same pin If they did then using 21 should work, but it didn't, the board recovery using pin 21 was the double reset click like you said not the remove power like I found. With the double reset click I 'lost' the serial port.

[image] Delta_G: So I may be over there chasing my tail if 40 worked here. Worth a try.

[image] Grumpy_Mike: Well I think I have cracked it. Reading the latest on line cheat sheet I notice that it recommends using pin 40 to the connected to the USB Serial port on the RA4M1. This worked but again like using pin 21 subsequent downloads failed. This makes no sense to me! That is t…

[image] Grumpy_Mike: If you are interested in making your own power switch, here is the layout of how to wire it up on strip board, along with some pictures of how it looks. Thanks, that is a nice switch setup! However, I personally cheat on this! I use USB Hubs with power switches. On on…

[image] Delta_G: Who do we ask next? This is how religion starts !

[image] Delta_G: I also have a thread that I didn't mark last night that says that pin 21 is how you turn the Tx light on. Maybe this one? [image] Do RX/TX LEDS glow? UNO R4 Minima With the new board core (1.0.4), those LEDs can be user controlled with simple sketc…

[image] Delta_G: I also have a thread that I didn't mark last night that says that pin 21 is how you turn the Tx light on. similarly to on an ESP-01 i guess

@KurtE & @Delta_G Thanks guys you were both right. I got the scope out and measured the state of the USB select lines, and indeed using pin 21 controlled the line and pin 40 didn't. However, I still had the same problems in resetting the board. I remembered something @Delta_G said about the docu…

[image] Delta_G: I hate magic numbers. Me too! @Grumpy_Mike , [image] Grumpy_Mike: > pinMode(21, OUTPUT); > digitalWrite(21, LOW); > This feels like throwing darts. From the schematic: [image] It appears like that IO pin has a Pull-Down resistor hooked up to it. So setting it low…

MIDI-library works on Minima but not on WIFI

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MIDI-library works on Minima but not on WIFI

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