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OK. Finally get my new Darlington PNP's in and have my first prototype working. I'm working on a creation video, but for now here's a link to the running prototype: Second Art Piece Prototype

I can't believe that I fried my Darlingtons! My LED Circle is comprised of six panels of eight LEDs. Each of the panel LEDs is sinked by an NPN Darlington array (ULN2803A). But, I decided to source all the panel LEDs with a PNP darlington (BC516) transistor tied back to a pwm output on the...

Phase 1 fabrication complete and tested...

Yeah Aries, you're right in line with what I was thinking. Hippy, your code has given me a lot to chew on. I have plenty of program space to have both frame based and pure logic based sequences. It will be interesting to see what kind of patterns come out of both concepts. Right now I only see...

Non-cyclic animations are going to take more resources than cyclic ones. Hers an animation where the LEDs "sweep up" from the bottom on both sides and then out the top. It takes 48 frames, and if I were to just do the whole animation with complete patterns for all six panels, that would be 48...

Another sequence is a full rotation sequence. This requires shifting bits to the left through the entire six byte array. I first write a pattern into the array. It could be a pattern that fills any number of panels. But in this case I am writing a pattern into a single panel (byte) and then...

So, I'm waiting for some more parts (.1 inch plug pins to make some breadboard connections, resistors, and those JST connector kits). In the mean time I just have my breadboard mock-up to play with. Since it represents only one panel of six (the last panel as I am shifting out MSB first). I am...

Hi Hemi, I have some bright LED's, typically the clear case ones, that are indeed extremely bright and don't require much current. But, I've got these red diffused rectangular LED's that I was going with for this art project, and they are not near as bright as the clear case LED's. Must be the...

Got my first PCBS from JLCPCB today. Let's see, I ordered them on the 29th of March. They got here on the the 6th of April. Unbelievable! On a side note... I'm glad I held off on submitting the master control board. Not because of any mechanical issues. Rather, I just realized that driving 48...

Hi julianE, So, I installed easyEDA and gave it a test drive. Here's my (limited, new to EDA in general) comparison of the two programs. For the most part easyEDA and CircuitMaker are very much the same. Both are online systems. This provides team collaboration, version control and access to...

Hi lbenson, For my previous Picaxe art project I was looking for an effective way to graphically visualize what I was going to make. You can get a glimpse of the Blender software in action and the output product about halfway through my video of that project: Electric Rainbow Project. Turns out...

Just an update... I just got word that my first set of circuit boards have shipped from JLCPCB. I submitted the specs on the 29th, they shipped on the 1st. Can't beat that! Now I'll find out how long it will take for DHL to get them here. As a side note here... I simply cannot believe in the...

While everyone else is looking at the electronics, I'm thinking that you'll need a counterweight on the fan. papaof2's comment on putting a magnet on each blade for accuracy would certainly provide that as a dual purpose. On the 6-blade fan in your diagram you could split the difference and...

Well I placed my order with JLCPCB. Ordered twenty boards. With a first order coupon the cost was just $10.70 shipped. Don't know the arrival time. I asked for a blue solder mask. That adds 2 days to the delivery date, whatever that is. But, I thought the red LEDs against a blue board would make...

OK, the AXE029 has the two resistors that were included on the upper right corner of the Picaxe on your breadboard, so I removed them. The jumper on the AXE029 just determines which pin that TX comes into the module on. I set it to the LEFT to use Pin 1. Then the module gets wired directly to...

OK, OK. You've all scared me away from making my own boards. Of particular note is the hassle of drilling. Also, along with the comment above I read a comment elsewhere that Ferric Chloride should have a brand name called "StainsAlot", so there's that. I'm gonna hang onto my copper clad boards...

OK, so I have been staring down this whole "make my own PCB" thing. I went ahead and got some copper clad board, so now I'm invested. (Well, I won't REALLY be invested until I drop $70 US on a table-top scroll saw to cut out my pie-shaped circuit boards, and another $90 US for a mini drill press...

OK Learner, Attached is the circuit script. You asked about knowing if it will work. Well, that is the big question. You will need to have it do something to know if it works. So in this new circuit script I added an LED connected to one of the 14M2's outputs; B.1. ...the upper left section of...

I think it has to do with frequency response. The small capacity value responds to/absorbs high frequency voltage spikes, while the larger capacity responds to/levels out lower frequency ripples. Thus they represent high and low frequency noise filters on a DC voltage. Well, that's somebody told...

That's it.