sparkfun 4x4 pad and teensy
sparkfun 4x4 pad and teensy Posted on: 29.07.2012 by Nydia Jaurigue hello there. i am completely new to electronics. i just bought a teensy 2+ and a 4x4 pcb and button pad from spark fun. i will be using single color LED's and not RGB ones. i have the following questions, if someone can help me please:1. is it possible to read buttons and write to LEDs with NO multiplexing? can someone provide a schematic of how to connect rows and columns to teensy? 2. if this is not possible without multiplexing, what sort of multiplex IC's i need for reading buttons and writing to LED's? 3. any ready made sketch to cover 1 & 2 above? thank you!!! | |
| Nydia Jaurigue 29.07.2012 | hello there. i am completely new to electronics. i just bought a teensy 2+ and a 4x4 pcb and button pad from spark fun. i will be using single color LED's and not RGB ones. i have the following questions, if someone can help me please: 1. is it possible to read buttons and write to LEDs with NO multiplexing? can someone provide a schematic of how to connect rows and columns to teensy? 2. if this is not possible without multiplexing, what sort of multiplex IC's i need for reading buttons and writing to LED's? 3. any ready made sketch to cover 1 & 2 above? thank you!!! |
| Era Roka 31.07.2012 | you can edit the code so it sends midi, i'll post a pic later on |
| Nydia Jaurigue 29.07.2012 | thanx a lot for the information!!!! however, this is HID and not midi, correct? also i wanted to know how to connect the matrix of buttons and LED's in teensy without / or with multiplexers do i need diodes in both configurations? i.e. with/ without multiplexers? thanx |
| Era Roka 29.07.2012 | yes that's totally possible http://community .djranking s.com/showthread.php?t=19047 |
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