DIY Metronome: Anyone interested?

[The Tone God]

I have read your pdf and excited to get started...I just wondered if the porgrammer project you got will do other ATTiny chips or is it just for the Tiny13?

Also for all of you in the UK, you can get the ATTiny13 from Rapid Electronics ....£0.69!

You could get a Dragon for £34.00 that programs all AVRs and debugs anything with 32K or less memory that is already built and supported.

Just a thought.

Andrew

[RaceDriver205]

I have read your pdf and excited to get started...I just wondered if the porgrammer project you got will do other ATTiny chips or is it just for the Tiny13?

It will do most modern Atmel microcontroller chips, not just ATTinys. You can use it to program even the monster ATMega128 if you want. The (outdated) ATTiny11 is an exception though. It can only be programmed with a Hi-Voltage programmer.
The limits of the programming gear in the guide are as follows (note that it does allow fuse programming):

• It wont allow you to lower the AVRs clock speed too much
• It wont allow you to use the Reset pin as an IO port
• It wont allow you to return the fuses to their original setting if you try either of the above

For most people, these wont be an issue.

But like Andrew (and my guide) says, if would like to purchase a professional programmer for a price like 34pounds, go ahead. Im afraid my guide won't be that helpfull in that case though.

Nearly fixed up the layouts!

[RaceDriver205]

DIY Metronome PDF
OK, here it is. I hope there's no errors anywhere. If anyone has any trouble, just let me know.

[RaceDriver205]

Y'all saw this right?

[WelshWonder]

Y'all saw this right?

Yep, I got it. I'll be making the PCB today. Will hopefully have completed the project over the next fortnight.

Thanks for sharing your project.

[RaceDriver205]

OK, as an update I have calibrated the metronome to an accuracy of 1.001Hz at 60dB. I used the internal oscillator and the OSCCAL register. It now has much better push-button control reliability (doesn't skip or ignore presses), and I am getting a 105dB piezo to upgrade it a furthur 10dB. Ill repost the new code .hex file in due course.
It used 1024bytes out of 1024bytes flash space!

EDIT: It also now covers 5 to 295 beats-per-minute.

[RaceDriver205]

No one cares about my metronome   

Is it just that everyone is scared of going near micros?
Tis the future, you know!

Anyway, Im just joking around. I went to get the 105dB piezo from the store today. There were 2 types so I asked the guy if he could test them with a 12V line. The 105dB one was so loud, my ears hurt for 2 hours afterwards. Be warned! If you have it at maximum volume, the music your playing is ruining your ears!