This week we needed to work around output. And since we are coming closer to the end of the semester, we started thinking about our final projects. Being able to make something with leds would be useful for mine and so I made the LED array board.
I already soldered it during the input week so I could start directly. Luck was with me that day because everything went just fine. I didn't have any problems with programming, connections or whatever. So the homework was finished in about 5 min. Since we had interface and application programming last week I wanted to change something in the file. The only problem was, there was no possibility to bring the LED array back to life.
The code that I've used to program was this one: sudo make -f hello.array.44.make
sudo make -f hello.array.44.make program-usbtiny
The last one had to be sudo make -f hello.array.44.make program-avrisp2 since i was not programming with the Fab isp
So up to the next plan. Making the hello stepper motor (bipolar). After soldering all the normal componets I found out that we didn't have the special ones that were requierd for this board.
So once again, restarting. With hello speaker this time. The soldering went fine. The programming even better. Letting the board work, negative. All the conections were checked. The programing way was checked and we couldn't find a mistake. Except one thing. It looked like there was power going from J3 Speaker point 3 to point 2. A connection that shouln't be there. I desolderdd the J3 speaker and the IC2 5V to see if maybe under one of these two there was some soldering that wasn't suposed to be there. But it all looked ok. So after reconecting, no change. I gave up on that board.
Then I started searching through the older boards if I could find a working output board. And so I did?. There was a Hello RGB board. And so I started changing that file, without succes though.
There were some connecting problems with the RGB board, but I've managed to fix it.
So, conclusion for this week: I've made 3 boards One worked but broke down, another one needs some components that we don't have and the third one doesn't work.
Something else that I leaned today is how to connect the battery wires with the connection to the board. It may sound stupid to some of you, but I'm totaly new to this. So, it's a mistake I made but I'll remember it now.