Almost three months since the last post here, and really very little progress. Why? Partly time restrictions, only really able to do much within lunch breaks or maybe 15-30 minutes after hours. Partly starting to get involved in planning for a total office refit, and desk clearing meaning everything been taped up with masking tape […]
There was math… and a spreadsheet… and my first use of the LN() function… Then there was an order of resistors… and capacitors… and inverting Schmitt triggers… and diodes… and more resistors… Next I’m thinking about the graphical UI, and the buttons… And I almost don’t have a clue… I’ve sort got a vague vision… […]
I was going to save doing this next post as “here are the electronics to glue everything together” post… but… After the last post I placed yet another order for a bunch of resistors, and some “headers” that I’m thinking about using to plug stuff into the Arduino, and for that matter another breadboard seeing […]
I was looking through schematics and board layout for a project to integrate a DOGXL160 onto an Arduino shield, and the DOGXL160 tech sheet, and found the power goes through a 100nF (nano-farad) 16V capacitor. Seems the “best match” I could find for this “teeny” spec component is a “surface mount technology” part. The idea […]
In an effort to put off having to look too carefully at anything involving amps, volts and ohms (and putting off any decision about user input) I looked at the Arduino specs about memory and looked to ideas about storing the program/bank change and potentially SYSEX. The Mega 2560 has 256K flash for your program […]
Some form of sanity prevailed and I decided that if I wanted to go with a graphical display then I should, at least for my first Arduino project, go with something with an already existing library. I noted two libraries, one seemingly mainly supporting a KS0108 controller, and another, called u8glib supporting that and a […]
Switching attention away from display and ideas of controls we can get some progress in acquiring parts. First off, an unescapable requirement is MIDI output sockets. MIDI uses 5-pin 180ยบ DIN sockets, like these. Secondly, during initial development at least I figured to use a breadboard. Along with a breadboard I would need to “wire […]
I can’t remember quite which order these things happened now, but I discovered there were third party libraries for graphical LCD displays, and interestingly when selecting colour LCDs there was a “touch screen” filter on the RS site. Suddenly this display became my favourite. There was the complication that none of the libraries I found […]
On reading through the Arduino site, I noticed there was a library called LiquidCrystal to easily control LCD text screens. There were even examples. So I looked on RS Components site, and as I recall I quite liked this one. I thought I’d get that, put some buttons around it for control (maybe using left […]
I have, to date, performed with three different setups: Roland FP-4F and Roland JUNO-Gi Roland FP-4F, Roland JUNO-Gi and Nord Electro 3 Roland JUNO-Gi and Nord Electro 3 The FP-4F is a digital piano, and effectively the MIDI In socket let’s you use it as a sound module. Nothing seeming can change the front-panel selection […]