9
Using AD8561view story

http://forum.allaboutcircuits.com – Hi, I have AD8561 IC ,and I don't know how to use it in my comparator circuit ,why it has 2 output pins ? and what is the function of the latch pin ? do I have to use it in my circuit ? for example this circuit: (Embedded)

9
Simultaneous control of momentary LEDsview story

http://forum.allaboutcircuits.com – Hi all, Apologies if this sound trivial but currently I’m stuck in terms of figuring out the logic to complete what I suspect is a fairly easy task. I’m currently turning on my LEDs for a certain amount of time using the output_toggle() method as seen in my code below at the end of my post but I’d like to move on to turning on another relay when I’ve got the first LED currently engaged. (Embedded)

9
Breadmaker - temp sensor questionview story

http://forum.allaboutcircuits.com – Hi all. I have an old breadmaker in which the control circuit failed, which is great as I want to make my own anyway. I was planning on using a PIC microcontroller, possibly a 16f630 as I have a few, or a 16f886. The coding side should be fine, although i've never interfaced with an LCD before (think i'm gonna use a nokia 3310 screen). The one thing i'm unsure about is how to 'read' the tempera (Embedded)

9
MC-30 motor controllerview story

http://forum.allaboutcircuits.com – I am adapting a MC-30 speed controller and a 90v 8 amp dc treadmill motor for a drill press. I tried getting the speed controller to work with the motor and wire the potentiometer. Unfortunately i can not get the motor to run correctly. I used a 50k pot which had 6 pins in which i used 3 this being because i had one at hand. The motor will turn on but will turn off then back on. (Embedded)

9
Capacitors on ACview story

http://forum.allaboutcircuits.com – I know the capacitor blocks DC and passes AC. My question is in AC, The capacitor charges in the positive cycles and discharges in the negative cycles? Or the discharging begins from the peaks towards 0 and similarly in the other cycle from the negative peak to 0? This concept seems a little bit tedious to understand and I'm probably looking too much into it. (Embedded)

9
Request for trace analysisview story

http://forum.allaboutcircuits.com – Hi All, I have been taking some traces today of my 100MHz PCIe reference CLK, which does unfortunately have a 19" run down my board. I have been taking traces considering whether or not I should buffer it or take any other special precautions in my next revision. What I have been confronted with is really confusing me..... (Embedded)

9
Gone fracking!view story

http://forum.allaboutcircuits.com – I recently picked up a job as an electronics tech for a large and apparently well ran frack company! So with that as I learn the industry and have time I plan to do a bit of a blog here relating to what goes on along with the how and why as I learn it. Today is my first stay at a man camp and I have to say this one is very nice! All you can eat buffet 24 hours a day for free! (Embedded)

9
How are these bulbs wired?view story

http://forum.allaboutcircuits.com – Hello everybody, I live in a house built in the 70s. (Embedded)

9
Germanium diodesview story

http://forum.allaboutcircuits.com – Hi all I'm looking at experimenting in radio circuits (crystal/powered receivers/transmitters), mostly out of interest.... I note many varied uses of germanium diodes - is there any particular ones I should get hold of before I start? Help me spend some money on ebay! :) cheers Lee (Embedded)

9
Where to find a servo motor that moves like this?view story

http://forum.allaboutcircuits.com – Watch Video: http://youtu.be/Pxn9p_Yqg2U The point of the "robot arm" in this video is to continuously tap the screen of an iPhone in order to prevent the phone from turning off (like sleep mode), without actually having to touch the phone with your finger every minute or so. You can walk away from your phone, allowing the game to continue on. (Embedded)