Comments on: Arduino Projects: Building an Arduino Countdown Timer

By: Chief-1820

Chief-1820 — Fri, 19 Jan 2018 03:00:00 +0000

In reply to jerrag. Solved the problem many moons ago, I ended up using an ATTinny 85 with a digital display, the whole unit is about the size of the 9 volt battery I am using to drive it with extensions for the switch and buzzer.

By: Arrachman Nur alif

Arrachman Nur alif — Mon, 14 Aug 2017 09:22:00 +0000

I got this error
exit status 1
stray ‘302’ in program

By: Aris

Aris — Sat, 05 Aug 2017 18:46:00 +0000

In reply to George George. We will dedicate one of our new posts to this. thanks

By: George George

George George — Sat, 05 Aug 2017 03:09:00 +0000

In reply to Ben. I need my timer to have user input to set the time and trigger a pin when the count down is down

By: Aris

Aris — Fri, 04 Aug 2017 16:06:00 +0000

In reply to George George. Can I help you, what do you need help with?

By: George George

George George — Fri, 04 Aug 2017 15:10:00 +0000

In reply to Ben. Hello Ben, pls I need help on how its gonna work. Thanks

By: jerrag

jerrag — Wed, 12 Jul 2017 02:45:00 +0000

Works great! I needed to set up a counter for my wife, who has glaucoma, she needs to insert eye drops twice per day to combat the disease. I set this up for 2 minute 30 seconds count down, and it does that just fine, the only problem I have is having it say DONE when time is up, not roll over and begin a full 24 hour count down, that and I would like to flash the display when the count down is finished, something like LCD FLASH or LCD BLINK, I know I have seen such commands before, but I can not be sure of the syntax.

By: Adharsh

Adharsh — Tue, 30 May 2017 07:07:00 +0000

In reply to LostVox. can u give your working code

By: Adharsh

Adharsh — Tue, 30 May 2017 06:52:00 +0000

In reply to LostVox. where is the uploaded code

By: Thomas Mead

Thomas Mead — Fri, 24 Mar 2017 23:47:00 +0000

Disregard my last question. I changed line 78 to lcd.setCursor(3,1); which allows a 3 digit hour display.