Arduino - Teh Forum

From:	Chris (CHRISSS)	28 Jan 2015 01:08
To:	koswix	270 of 542

40898.270 In reply to 40898.269
I can wait til the software is better. Can you play the theme from Project X on the Amiga? Me

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From:	Chris (CHRISSS)	28 Jan 2015 01:14
To:	ANT_THOMAS	271 of 542

40898.271 In reply to 40898.268
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? Me

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From:	Chris (CHRISSS)	28 Jan 2015 01:21
To:	koswix	272 of 542

40898.272 In reply to 40898.269
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. Me

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From:	koswix	28 Jan 2015 09:15
To:	Chris (CHRISSS)	273 of 542

40898.273 In reply to 40898.270

If you give me a midi file of it.


 ▪                    
             ┌────┐    ┌────┐                      
          │    │    │    │ ▪                    
          │    └────┘    │                      
          │   ──┐  ┌──   │ ▪                    
   ┌──────┤    ▪    ▪    │                      
  ┌┘      │              │ ▪                    
┌─┤       └──┐  │  │  ┌──┘                      
│ │          │ ││  ││ │   ┌─┐                   
│ │          └─┼┤  └┴─┴───┘ │                   
│ │           ─┘│           │                   
│ │   ┌──────┐  └┬──────────┘                   
  │   │      │   │                              
  │   │      │   │                              
  └───┘      └───┘

If Feds call you and say something bad on me, it may prove what I said are truth, they are afraid of it.

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From:	Chris (CHRISSS)	28 Jan 2015 09:57
To:	koswix	274 of 542

40898.274 In reply to 40898.273
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? Me
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From:	ANT_THOMAS	28 Jan 2015 11:29
To:	Chris (CHRISSS)	275 of 542

40898.275 In reply to 40898.274
Different transistors definitely have different pinouts in case you looked at a generic schematic. ┌─────┐ │ │ │ ┌─┐ │ │ │ │ │ │ └─┘ │ │ │ │ ┌─┐ │ │ │ │ │ │ │ │ │ └─┘ └─┘

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From:	Chris (CHRISSS)	28 Jan 2015 11:45
To:	ANT_THOMAS	276 of 542

40898.276 In reply to 40898.275
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. Me

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From:	koswix	28 Jan 2015 12:30
To:	Chris (CHRISSS)	277 of 542

40898.277 In reply to 40898.274

I'll confess to not really knowing anything about transistors.


 ▪                    
             ┌────┐    ┌────┐                      
          │    │    │    │ ▪                    
          │    └────┘    │                      
          │   ──┐  ┌──   │ ▪                    
   ┌──────┤    ▪    ▪    │                      
  ┌┘      │              │ ▪                    
┌─┤       └──┐  │  │  ┌──┘                      
│ │          │ ││  ││ │   ┌─┐                   
│ │          └─┼┤  └┴─┴───┘ │                   
│ │           ─┘│           │                   
│ │   ┌──────┐  └┬──────────┘                   
  │   │      │   │                              
  │   │      │   │                              
  └───┘      └───┘

If Feds call you and say something bad on me, it may prove what I said are truth, they are afraid of it.

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From:	Chris (CHRISSS)	28 Jan 2015 20:30
To:	koswix	278 of 542

40898.278 In reply to 40898.277
Not good enough :P Turns out the eBay listing had it wrong. The tranny should be the other way round. Me

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From:	Chris (CHRISSS)	29 Jan 2015 13:59
To:	ALL	279 of 542

40898.279
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. Me

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From:	ANT_THOMAS	29 Jan 2015 17:47
To:	ALL	280 of 542

40898.280
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. ┌─────┐ │ │ │ ┌─┐ │ │ │ │ │ │ └─┘ │ │ │ │ ┌─┐ │ │ │ │ │ │ │ │ │ └─┘ └─┘

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From:	Chris (CHRISSS)	30 Jan 2015 20:13
To:	ANT_THOMAS	281 of 542

40898.281 In reply to 40898.280
Cool. Lots of wires there :D I kind of worked out PWM frequencies without using that library. I tried settings the bits of the two registers myself but worked out something wrong, not sure what. Found a website with a list of values to use and set them. Then I just use analogWrite with the correct bits set and I have a PWM frequency of 3921Hz. It'll be half that if I used an 8MHz device in the atual install though. And it looks like I can actually get all the pins I want to work correctly. Me

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From:	ANT_THOMAS	30 Jan 2015 20:23
To:	Chris (CHRISSS)	282 of 542

40898.282 In reply to 40898.281
Have you got the RGB strips working with the arduino now? ┌─────┐ │ │ │ ┌─┐ │ │ │ │ │ │ └─┘ │ │ │ │ ┌─┐ │ │ │ │ │ │ │ │ │ └─┘ └─┘

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From:	Chris (CHRISSS)	30 Jan 2015 21:32
To:	ANT_THOMAS	283 of 542

40898.283 In reply to 40898.282
Not yet. I've only tested the small strip with it so far. Need to hack the IR signal too so I can turn it on and off and change colours. And tonight I tested the PWM frequency with a single LED. Me

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From:	Chris (CHRISSS)	30 Jan 2015 23:57
To:	ANT_THOMAS	284 of 542

40898.284 In reply to 40898.282
And how's your world coming along? Are you going to do a variable hole size drilled wooden panel like the page you linked to before? Me

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From:	Chris (CHRISSS)	31 Jan 2015 00:04
To:	ALL	285 of 542

40898.285
Brown and red look too similar on resistors. Me

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From:	ANT_THOMAS	31 Jan 2015 00:13
To:	Chris (CHRISSS)	286 of 542

40898.286 In reply to 40898.284
Still need to wait for a few bits to arrive: protoboard, screw connectors, dip sockets. The code is pretty much done. Comes in at around 20K, so there's room for some extra stuff if want. Though I imagine it'll mainly be on world time setting or all on. The plan is to basically copy the map I linked with the variable sized holes and use MDF, though the UK isn't very obvious so I might tweak the design. Not bought the MDF yet though. ┌─────┐ │ │ │ ┌─┐ │ │ │ │ │ │ └─┘ │ │ │ │ ┌─┐ │ │ │ │ │ │ │ │ │ └─┘ └─┘

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From:	ANT_THOMAS	31 Jan 2015 00:15
To:	Chris (CHRISSS)	287 of 542

40898.287 In reply to 40898.284
Just remembered I attempted to add an IR receiver to do the same as the button but it didn't seem to consistently receive the correct code from the remote I was messing with. ┌─────┐ │ │ │ ┌─┐ │ │ │ │ │ │ └─┘ │ │ │ │ ┌─┐ │ │ │ │ │ │ │ │ │ └─┘ └─┘

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From:	Chris (CHRISSS)	31 Jan 2015 02:02
To:	ANT_THOMAS	288 of 542

40898.288 In reply to 40898.286
I have a protoboard that came with my Saintmart. Not used it yet. Are the dip sockets for the shift registers? I kind of feel like I should have some advice for the MDF as I use lots but I can't think of anything right now. Don't breathe it in. Me

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From:	Chris (CHRISSS)	31 Jan 2015 02:14
To:	ALL	289 of 542

40898.289
Different PWM frequencies. 31Hz, 122Hz, 490Hz, and 31kHz. Me
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