Picallw and a 16F88

Started by petesplace1234 in Piclist14 years ago 7 replies

Currently I'm trying to get a 16F88 programmed on Picall hardware. It looks like it works though the led flash program doesn't...

Currently I'm trying to get a 16F88 programmed on Picall hardware. It looks like it works though the led flash program doesn't (Wiz-c/FED). Could someone look over my shoulder and verify my settings? ;--------------------------------------------------------------------- ----


Re: LED's - limits for serial wiring

Started by Ian Phillips in Piclist14 years ago 2 replies

You're right, you do have to be careful and it is usually best not to parallel but, I will only be paralleling series runs that will...

You're right, you do have to be careful and it is usually best not to parallel but, I will only be paralleling series runs that will be resistor matched to the supply voltage. Seeing as the load will only be on for a short period/pulsed and I am over spec'ing there should be no heat


HELP!!!!!!!!!! A/D 12F675

Started by shaunundergrad in Piclist15 years ago 4 replies

hi guys, please have a look at my code. what i am trying to achieve is to take an analogue signal (2 pots,1k each, across + and -...

hi guys, please have a look at my code. what i am trying to achieve is to take an analogue signal (2 pots,1k each, across + and - rails with wire to AN0) turn the pots up and down and switch 2 led's on, 1 when above preset level and the other when below (1 at a time). i know i cou


timer

Started by bg3009 in Piclist15 years ago 13 replies

now i realise why i see so many questions regarding the timer. It seems the timer is complicated to use for even simple timing ...

now i realise why i see so many questions regarding the timer. It seems the timer is complicated to use for even simple timing applications? What if i want to configure the timer for a two second delay? I still have to go thru this interrupt routine? I am trying to set up an led


more 2550 issues

Started by Lez in Piclist12 years ago 3 replies

well I got the programmer working. I burned it with F88 code, changed some port assignents etc as I now have more IO lines. Turned it on...

well I got the programmer working. I burned it with F88 code, changed some port assignents etc as I now have more IO lines. Turned it on and all looked fine. Except, the mobile phone it should be communicating with is doing nothing, and I'm getting an error flashed on an led I have connected to the pic, 5 flashes, no phone detected... After looking at this I grabbed an old serial to u...


timer pic

Started by randy ram in Piclist12 years ago 3 replies

Has anyone tried this before? I want to use say the PIC12 to count down to say 24 hrs or any time given the light up a LED. Then loop...

Has anyone tried this before? I want to use say the PIC12 to count down to say 24 hrs or any time given the light up a LED. Then loop back again start counting again. A none ending loop till I pull out the supply. Thanks -- ___________________________________________________ Play 100s of games for FREE! http://games.mail.com/


18F4331 and PWM

Started by Paul L in Piclist11 years ago 1 reply

Hi. Well, after getting my new PIC, it didn't take long to get it going! Was a little worried at first! I can now receive using USART and then...

Hi. Well, after getting my new PIC, it didn't take long to get it going! Was a little worried at first! I can now receive using USART and then using the values taken put that in the PWM unit and there i have a dimming LED! Beats having a DA and few Op-amps! My question is about the PWM maths. I have read the datasheet but can't figure out how to calculate the frequency of the PWM. Maybe caus...


Driving a relay

Started by spikey_sa in Piclist15 years ago 1 reply

Hi, I'm new to PIC programming, and even newer to this group, I'm using a PIC16F84A to handle a project I am doing, I've...

Hi, I'm new to PIC programming, and even newer to this group, I'm using a PIC16F84A to handle a project I am doing, I've managed to get 4 inputs working, which drive 4 LED's, but now I want to use four output to energise 4 12v relays, I'm using RB0 - RB4 as the output


My PIC Project

Started by Nikhil Praveen in Piclist9 years ago

Hi there all, I am new to this list. I have a project idea in mind and would like to share this with you guys. Firstly, I have very basic...

Hi there all, I am new to this list. I have a project idea in mind and would like to share this with you guys. Firstly, I have very basic understanding of PIC Assembly but do by now know how to blink an LED. My project is as follows: I want to use a PIC16F88, as this is not too complicated and has all that I may require. I want to build an extra fuel injector controller, in which rpm (IG-) s...


2leds - 1 package - 2 wires

Started by ydexter in Piclist14 years ago

Huh, i thought it is a well known product. I don't know the manufacturer, i know just the schematic, there are 2 led diodes ...

Huh, i thought it is a well known product. I don't know the manufacturer, i know just the schematic, there are 2 led diodes coupled in anti-paralel mode, so only one can be lit at the given p0larity. To lit the other one you have to reverse the polarity. Of course you can't lit both


Who would PIC a 6 pin processor?

Started by Chad Russel in Piclist14 years ago 3 replies

'Electronic Design' magazine says the 6 pin SOT-23 PIC10F series is out. :-) $.49 range. At that price and size, gets me to...

'Electronic Design' magazine says the 6 pin SOT-23 PIC10F series is out. :-) $.49 range. At that price and size, gets me to thinking about artificial neurons again, or a sophisticated game of life, or a LED flasher. Chad


Effect of Electrostatic Field on a PIC

Started by Bennet Williams in Piclist15 years ago 11 replies

I have just observed a very strange phenomenon. I have never seen anything like it my 20 years experience with electronics. I ...

I have just observed a very strange phenomenon. I have never seen anything like it my 20 years experience with electronics. I programmed my very first PIC program that flashes an LED once per second. I put my programmed PIC16F873 into my breadboard circuit and clocked it with a 4


Running PIC16F628A at 3.6V

Started by Scott Lingerfelt in Piclist13 years ago 4 replies

I have a project that requires battery operation. I am using a Lithium Tadiran 3.6V 1/2AA battery for this project. I have an LED...

I have a project that requires battery operation. I am using a Lithium Tadiran 3.6V 1/2AA battery for this project. I have an LED that is tied to PORTB.5 so when the PIC starts I pull this pin high and this never happens. Can someone point me in the right direction?


Pic Serial LCD - YokYokBloomBloomBakaBaka

Started by holopoint.rm in Piclist15 years ago 5 replies

Hello all. I want to make a serial LCD controller using a pic16F628 Can someone help me with some schematics and code samples ?...

Hello all. I want to make a serial LCD controller using a pic16F628 Can someone help me with some schematics and code samples ? This is my first PIC projects. Well, second, the first was a magnificent led blinker. Thanks, Shash. PS. You can ign


Another beginer looking for a jumpstart

Started by Travis L. F Bailey in Piclist15 years ago 10 replies

I am another newbie, trying to get started with pic programming. I have the following items: MPLAB, Pic-MCP-C programmer, a c18...

I am another newbie, trying to get started with pic programming. I have the following items: MPLAB, Pic-MCP-C programmer, a c18 compiler and three pic18f452 chips, powered protoboard. and various other supplies I want to get started and just get a simple LED to blink.


PIC Day Counter

Started by Vanderson in Piclist14 years ago 7 replies

Anyone know anything about 5x7 led matrix day(24hs) counter using PIC project, or similar

Anyone know anything about 5x7 led matrix day(24hs) counter using PIC project, or similar


Problems with programmer

Started by pakigenius786 in Piclist15 years ago 2 replies

I purchased a programmer from Olimex, specifically the PIC-PG2C. i want to know how to use it! I plug it into the serial port, and...

I purchased a programmer from Olimex, specifically the PIC-PG2C. i want to know how to use it! I plug it into the serial port, and then i turn on the computer. is the LED supposed to light up. If not, then how am i supposed to turn it on? Mohammed Billoo


what is the easiest way to control a pic from a pc?

Started by mr_gees100_peas in Piclist12 years ago 16 replies

Lets ay you are on a budget and you already have some 16f877a pics laying around and a bunch of other parts (resistors, caps etc etc). You have...

Lets ay you are on a budget and you already have some 16f877a pics laying around and a bunch of other parts (resistors, caps etc etc). You have your compiler and pic programer and what not. Now you want to create a program and control your pic. Maybe make it blink an LED. SOmethignsimple. What would be the easiest way to do this. Take into account the cost. For example you can get free C/C++ ...


PIC18F4620 not starting?

Started by Nelson Viegas in Piclist10 years ago 2 replies

Hello! I'm about to use a PIC18F4620@20Mhz for now, but it is unable to start. The circuit is too simple (just a flashing LED), and if I use...

Hello! I'm about to use a PIC18F4620@20Mhz for now, but it is unable to start. The circuit is too simple (just a flashing LED), and if I use a PIC16F678A, the circuit works fine, bit it for the other PIC it does not. However, if I touch my MCLR 4K7 resistor with my finger, the chip (18F4620) works. What am I doing wrong? I've tried diferent capacitors for the crystal (from 22 to 68pf) but...


Programming just eeprom?

Started by tadaosystems in Piclist15 years ago 1 reply

I have a circuit that times and operates a pneumatic device, and is adjustable via an led menu system. The settings are saved in ...

I have a circuit that times and operates a pneumatic device, and is adjustable via an led menu system. The settings are saved in eeprom. It is also set up with an in-circuit programmer. Is it possible to write data just to certain eeprom locations without re- writing the entire pr