A small 328P PCB replacement for a Nano with minimal components to save power – or does it?
PCBWay Assembly Service only $30 with Quick Turnaround Time https://www.pcbway.com
All this information plus more (eg pictures, sketches) in my GitHub:
https://github.com/RalphBacon/DIP-328P-Bare-Nano-SMD-PCB
And whilst we’re at it, we’ll play with the toneAC library from Tim Eckel (of NewPing fame) to boost the volume of the small beeper (buzzer) running off that 3v coin cell. It was always going to be a bit of challenge to run off 4v anyway, especially a CR2032 coin cell but the challenge was met quite nicely!
Unfortunately, using standard, bare piezo buzzers didn’t realise the voume I wanted (not even when mounted on a case) so I Retained the 3-volt passive buzzer.
So this little PCB plugs into anywhere a Nano normally fits. I used a standard DIP 328P as I had so many of them this was an ideal opportunity to use some of them. These days it’s all SMD, no THT allowed!
This is the slightly hacked board into which it plugs (Universal Timer)
Talking of SMD, these Yihua tweezers are given a longer look at, and I even demo how I;ve used them (a bit cack-handedly over the camera but you will get the gist). I’m hoping these will be robust and long-lived; they are the same brand as my 959D Hot Air Gun soldering station which has worked very well so far.
### List of all my videos
(Special thanks to Michael Kurt Vogel for compiling this)
http://bit.ly/YouTubeVideoList-RalphBacon
All this information plus more (eg pictures, sketches) in my GitHub:
https://github.com/RalphBacon/DIP-328P-Bare-Nano-SMD-PCB
### LINKS
All this information plus more (eg pictures, sketches) in my GitHub:
https://github.com/RalphBacon/DIP-328P-Bare-Nano-SMD-PCB
**toneAC** library by Tim Eckel
https://bitbucket.org/teckel12/arduino-toneac/wiki/Home
YIHUA 938D **Portable Hot Tweezers Mini Soldering** Station 110V/220V
https://bit.ly/2M8R0bj
DANIU Heavy Duty Soldering **Solder Iron Tip Cleaner** Steel Wire $3.33 from China, higher price local warehouse
http://bit.ly/SolderingIronCLeaner
SMD Components **Solder Practice** Module Kit – all components incl QFP chips
http://bit.ly/SMDPracticeBoard
9 Pcs ESD **Tweezers** Anti-static Stainless Steel Precision Tweezers $5.55
Plenty of cheaper sets available but I wanted something that might last!
http://bit.ly/TweezersForSMDSoldering
**3V Buzzer** 16 Ohm Passive Magnetic Buzzer, 10 pieces, PWM only $1.99
http://bit.ly/3voltBuzzersPassiveForPWM
All about AVR (ATMega) **Sleep Modes**
https://microchipdeveloper.com/8avr:avrsleep
If you like this video please give it a thumbs up, share it and if you’re not already subscribed please consider doing so and joining me on my Arduinite journey
My channel and blog are here:
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https://www.youtube.com/RalphBacon
https://ralphbacon.blog
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