Need LED to Flash Once Every 60 Seconds

Kits General
1

Hello,

Out of your kits, what can you recomend that can flash a single RED LED once about every 60 seconds?
It also needs to work on a +5V DC power supply.

Update 04/21/2014:
I just want to add that I purchased the MK111 Interval Timer and it works perfect for what I need. However when using +5 V it will not function. The LED just says lit. Would changing any of the values of the cap’s/resisitor make it work with 5 volts? My understanding is the 555 is functionable down to 5 volts.

2

You can remove D3 and replace it by a jumper, if you do not need polarity protection.
The relay will not function at 5V, but most likely you do not need it, so it can be omitted as well.

3

Yes, did not need the relay or polarity protection. Your advice worked perfectly and I am really happy with the results!

Thank you