Recent content by phlegmy

Hello knowledgeable ones! I need your help to make my life easier; Background. I need to turn on fans every cold night during winter in a grain storage shed to keep the grain from heating/rotting! This involves treking to the shed in the cold after midnight (cheap electricity) and...

UPDATE i eventually bought a shipment of parts which arrived in March, Everything including a Breadboard and resistor packs, capacitors, soldering iron and 7 segment LED displays, and of course some microcontrollers (pic 16f57) and a pickit2. I initially found it tricky to set up; I had...

Just to report that i have all but finished my anomometer but for calibration and a few tweeks to the microcontrollers code. I ended up using the optocoupler configured as described by Fish4Fun, Thanks again.

I know its been a while, but for the sake of anyone else who gets here, the "no chip" pin seems to have been a dummy, i simply clipped it off before soldering the displays to my circuit.

7 seg display NO CHIP pin?? hello wise ones. I've recently taken delivery of some 7 segment led displays for a small project, (i'm brand new at building electronic ccts) 3 of theese single digit displays will be driven from a microcontroller the 7 segment display units have a pin labelled...

THanks so much for the REply fish! Thats a much better way of hooking up the switch, switching the photoswitches collector and thus controllers input to ground through a resistor, rather than trying to get a high signal from the emitter. I;ll look into a hall effect sensor, Thanks again...

Hey guys i'm putting together a shopping list for my first microcontroller project. One thing i need is a slotted photoswitch (to count rotations of an anometer) The project will be powered by a 9v battery, regulated to 5v. The photoswitch has an led on one "post" and the other post has...

hey topher, book arrived yesterday, I'm on page 40. you're right, i'm going to buy a cheap starter kit. i want to have a functioning digital anemometer by end of feb. steep curve ahead!

well i've made a start and ordered a book "pic your personal introductory course" by john morton" i'm starting from scratch so i'll make my way through this book and come back later when i actually buy a microcontroller Thanks for the contributions! James

Thanks nova, The i'll check out MPLAB,

Hey guys I've been toying with the idea of building a diy digital annometer I'm hoping it can be achieved with a device which rotates in the wind which will generate pulses from a light interupted switch. The pulses will be sent to a microcontroller which will use the info to calculate...

they sit there forever, or until they come up with a superior alternative to a 4 way stop, and so the round about was born!

i'm going to say:

they use the medals as a binary counter 0= silver silver 1=silver gold 2=gold silver 3= gold gold they nominate a COUNTER, he is only one who resets the medals to 0 each soldier changes the medals ONLY ONCE! if a solder is called and the medals are at 3, he waits for his next...

IF guy 1&2 were wearing hats of the same color guy 3 would know and say "i have the answer" but if he dosn't - that because guy 1&2 wear hats of a different color, so the middle guy says "i have the answer" and knows his hat is the opposite color to the guy in front