Aha. Handy. Is 150Hz enough with them dimmed? Think it's more noticeable in a dark room too. Lots of useful libraries for the Arduino.
I'm still waiting for my two Nanos. I have a USBASP programmer which I'll use with my Pro Mini for now. Also waiting for a FTDI adapter which will be an easier connection than the USBASP. Gonna have a play with the nRF24L01 transceivers. Did you add a capacitor to the power connections on yours?
I asked on the Arduino forums about the bits in that LED controller. They are FETs and rated at 2.8A. Must be heat dissipating pads.
If you give me a midi file of it.
I will try and find one and give it to you (YJ)
I wired up my LED strip the other night using a BC547. I'm sure I had it connected right but the LEDs didn't respond to the PWM unless I swapped the transistor around the other way. Any ideas if my circuit is correct?
Different transistors definitely have different pinouts in case you looked at a generic schematic.
I got the pin layout from the eBay listing so it should be right. And I used the same ones with my clock with no problems.
I'll confess to not really knowing anything about transistors.
Not good enough :P
Turns out the eBay listing had it wrong. The tranny should be the other way round.
I had another play with my LED strip using all 3 colours this time. I had a couple of issues with the PWM library. Pin 11 would only go high or low, nothing in between. Pin 3 (same timer as pin 11) didn't turn on at the same value as the other pins but did output PWM.
I started reading about manually setting the registers. So confusing. I kind of understand what needs to be done just now how.
3 shift registers now working.
15 "LED" PWM outputs across 3 shift registers to check they're all communicating correctly. Max will be 24 covering all timezones.
Mains adapter seems to work well too. Initially I thought it was causing issues but I forgot to ground the DC-in to the Arduino.
A BH1750 light intensity board arrived too. Whilst it works great I'm not sure I like what it gives me. The LDR on an analog in pin gives a range of 0-1023, where the outputs seem to make sense, but with the BH1750 you get between 0 - 65534, with daylight only being around 100, now in the late afternoon with the light on it gives ~50. I could only get it to max out at 54612 by shining the flash on my phone at it. An LDR would probably be easier to fit somewhere too.