Search found 7 matches

by DPaul
Fri Dec 06, 2019 9:35 am
Forum: micro:bit boards
Topic: piano trouble
Replies: 7
Views: 809

Re: piano trouble

Hi, I have taken into acount all the remarks, and changed 2 things. As far as i can tell, it works ! :o 1) i got inspired by the cols and rows to turn the program around, writing digital zero instead of 1 2) i changed the hardware config, now the leg with the 10k resistor goes to GND, the other to V...
by DPaul
Fri Dec 06, 2019 8:57 am
Forum: micro:bit boards
Topic: piano trouble
Replies: 7
Views: 809

Re: piano trouble

Thanks lujo,

Will try this immediately.
I see a big difference right away, might be the solution ... :D

Paul
by DPaul
Fri Dec 06, 2019 7:41 am
Forum: micro:bit boards
Topic: piano trouble
Replies: 7
Views: 809

Re: piano trouble

Thanks Jimmo, a) Agreed, Music.stop() should not be necessary. lengths of notes are driven via parameters. b) Write_digital(1) not necessary: i thought not, that is the reason i asked. (i'll take it away) c) pullup/pulldown resistor: The push buttons are connected to: One leg to : pinX (1,2,8,13,14,...
by DPaul
Thu Dec 05, 2019 9:42 am
Forum: micro:bit boards
Topic: piano trouble
Replies: 7
Views: 809

Re: piano trouble

Thanks, I now tested multiple music.stop() configurations, and it may certainly have somethingto do with it. But i also have a 7 push-button version, where music.stop() does not work so well. It almost seems that when you press one of the buttons, some current is randomly triggering one or 2 others,...
by DPaul
Thu Dec 05, 2019 8:20 am
Forum: micro:bit boards
Topic: piano trouble
Replies: 7
Views: 809

piano trouble

Hi, I am testing a one - note piano with a pushbutton on the microbit. The digital reading is "1" in normal state, and "0" when the button is pressed. (signal goes to GND) The the note is produced. So far so good. My question: The note keeps on sounding even after i release the button . I expected t...
by DPaul
Tue Mar 19, 2019 9:59 am
Forum: micro:bit boards
Topic: radio function
Replies: 1
Views: 599

radio function

Hi, I have a setup where a number of microbits send info to a central microbit using the radio() function. I keep the receiving (central) microbit attached to the development computer, using the Mu editor, where i can check the "files" on the Microbit. Question: when i check the files via MU on the ...
by DPaul
Tue Mar 05, 2019 4:00 pm
Forum: micro:bit boards
Topic: radio docs
Replies: 0
Views: 512

radio docs

Hi, I am almost succesful in sending info from one microbit to another using microPython. But i feel the need for a thorough presentation of all the parameters, possibilities, etc.. of the radio function. Details are never discussed , not even in the BBC micro:bit MicroPython documentation of Decemb...