hrbmd22
Newbie level 3
![Newbie level 3](/styles/images/ranks/alevel3.gif)
- Joined
- Sep 6, 2009
- Messages
- 4
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,281
- Location
- Elvis' world
- Activity points
- 1,310
talking voltmeter
Hello,
I am a nube to this post, so I hope I'm in the right section.
My son has a friend who is legally blind and asked me to build him an "audible" voltmeter. For example, if he is testing a 5VDC circuit, he would set the alarm to "5" and a buzzer would sound when the voltmeter read 5VDC. It would not sound at 4 VDC or 6 VDC. I'm stumped on this one. I think it may require a microprocessor. The closest thing I can find on line is a "Volt minder" that allows you to set an alarm within a range of 10 - 13.5VDC. I want something with a greater range, say 3 to 15 VDC.
Any help would be greatly appreciated!
Thank you!
Hello,
I am a nube to this post, so I hope I'm in the right section.
My son has a friend who is legally blind and asked me to build him an "audible" voltmeter. For example, if he is testing a 5VDC circuit, he would set the alarm to "5" and a buzzer would sound when the voltmeter read 5VDC. It would not sound at 4 VDC or 6 VDC. I'm stumped on this one. I think it may require a microprocessor. The closest thing I can find on line is a "Volt minder" that allows you to set an alarm within a range of 10 - 13.5VDC. I want something with a greater range, say 3 to 15 VDC.
Any help would be greatly appreciated!
Thank you!