Search found 4 matches

by Casey1947
Sat Apr 02, 2016 8:58 am
Forum: General Discussion
Topic: Those Pesky Membrane Switches
Replies: 7
Views: 1397

Re: Those Pesky Membrane Switches

Hello, Back in the late 60's I bought my wife a new electronic timer with push buttons. She really liked it because she was young and followed recipeis very closely. Around 20 years later one of the buttons quit working. Since there were three timers I told her just to use one of the other two. A ye...
by Casey1947
Wed Mar 16, 2016 8:22 pm
Forum: General Discussion
Topic: LED clculators not working..
Replies: 16
Views: 2251

Re: LED clculators not working..

Hello,
5 - 1.8 = 3.2
3.2 / .001 = 3200
3300 Resistor is the closest value.
It should light up but you may only see it if it is dark and the lights are out. Why are you only using one mA of current? If you use 10 mA of current the resistor should be 320 ohms.

Casey
by Casey1947
Sun Feb 14, 2016 5:55 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond the Arduino 8
Replies: 2
Views: 2056

Re: Beyond the Arduino 8

How Ya Doin' I used the Toadstool and the ICE programmer. (328P) I have a cheap Radio Shack multi-meter so here is what I got. Readings at 5 volts: 0- 40 mA (average because meter moved from 38 to 42) 1- 36 mA (average for around the same reason) 2- 21.46 (correct reading I suppose because meter sta...
by Casey1947
Sat May 23, 2015 8:03 pm
Forum: Nuts & Volts Magazine Discussions
Topic: Beyond Arduino - What should I cover next?
Replies: 13
Views: 4521

Re: Beyond Arduino - What should I cover next?

How Ya Doin' Glad you asked, I will be 68 years old in a couple of months but I still like flashing LED's. I am working on a project that flashes seven LED's randomly like rolling dice. (Maybe dice is the wrong word because there is only one, die? ) I have it hooked up to a ATtiny85 and am using res...