166 ATMega328P Deep Sleep Project Update

An update to the Deep Sleep Airing Cupboard project, now also a fridge alarm!

See https://www.youtube.com/ralphbacon video #166

(Direct link to video: https://youtu.be/BuxgEeq9IBU)

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So my movement alarm in a dark place is complete - and also turned into a light activated alarm too. Thanks to the low power used (due to Deep Sleep) the batteries on both projects should last for at least 1 year.

The PCB in this project, made by PCBWay.com, was panelised, meaning the PCBs were joined together. This is essential when creating boards for SMD assembly but otherwise it's actually cheaper to have them made singly.

LINKS

My PCB design can be found here:
https://www.pcbway.com/project/shareproject/PIR_Deep_Sleep_for_ATMega328P.html

CoolTerm - a great alternative to PUTTY. Freeware but he accepts donations. Yes, I donated $10. It's worth it. https://freeware.the-meiers.org/

The sketches are in the GitHub. Amend to suit your needs!

Small beeper: 5 PCS Super Loud 5V Active Alarm Buzzer Beeper Tracker 9*5.5mm https://www.banggood.com/5-PCS-Super-Loud-5V-Active-Alarm-Buzzer-Beeper-Tracker-95_5mm-for-Racing-Drone-p-1117207.html?p=FQ040729393382015118&utm_campaign=25129675&utm_content=3897

Small PASSIVE beeper, 10 pieces, drive using Arduino TONE command https://www.banggood.com/10Pcs-AC-3V-Buzzer-Wireless-16-Ohm-Passive-Magnetic-Buzzer-for-Earphone-Mobile-Phone-Digital-Speaker-p-1473091.html?p=FQ040729393382015118&utm_campaign=25129675&utm_content=3897

Small PIR module (5 pieces you can buy singly or in threes too)
https://www.banggood.com/5Pcs-Mini-IR-Infrared-Pyroelectric-PIR-Body-Motion-Human-Sensor-Detector-Module-p-1020426.html?p=FQ040729393382015118&utm_campaign=25129675&utm_content=3897

ATMega328P pin out (Arduino vs Physical Pins etc)
https://camo.githubusercontent.com/c55beef2f138da61fe671a1e4a307ff4ffbc318d/68747470733a2f2f692e696d6775722e636f6d2f715849456368542e6a7067

Plastic case used in this project
https://www.banggood.com/2pcs-75-x-54-x-27mm-DIY-Plastic-Project-Housing-Electronic-Junction-Case-Power-Supply-Box-p-1063302.html?p=FQ040729393382015118&utm_campaign=25129675&utm_content=3897

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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