Tagged Questions

2
votes
4answers
169 views

I need help designing a very simple timer

I'm designing a very simple led light timer based on the Pomodoro time management technique. For those of you unfamiliar, you work for a set amount of time, take a short break, and repeat. My end ...
0
votes
1answer
101 views

Performing different actions on the same timer

I am working with MC9S08AW60 on the Board-DEMO9S08AW60E. I have written the following code to perform Serial Comm, LED sequence and Keyboard Tx-RX. ...
4
votes
2answers
619 views

Fading RGB led with ATtiny2313 timer

I'm trying to make mood lamp with only hardware PWM and interrupts (i. e. main loop should be empty). I'm doing it as a challenge to learn how timers work, not for any practical reason. So far I've ...
1
vote
1answer
153 views

Fast PWM and Atmega1280 problem

Hello I have some problems to understand how to bind a Timer to a Pin and because of that my code isn't running... ...
1
vote
0answers
198 views

Using a diode or resistor, to supply minimal voltage to LED Driver (Help!)

I'm using a dual 60W LED multi-chip pendant lighting (a.k.a. "high bay" pendant light with two 60W LED chips). This light is using an RGB driver (one per multi-chip) that has a remote control to ...
2
votes
3answers
546 views

Create a circuit that can flash IR LEDs at 38.5kHz and be turned on or off by microprocessor

Several other questions are posted about methods for flashing an LED, but one additional requirement I have is the ability to turn the circuit on or off with a micro controller (Netduino, 3.3v). This ...
7
votes
6answers
1k views

6 Month Countdown Timer Circuit

I need to design a timing circuit. After a duration of 6 months a LED must come on. The LED can then be turned off at the press of a button and the 6 month count-down must begin again. Anyone have ...