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29 Threads found on Pot Pic
i dont know what the power level will be in the resistor?, but you can put tactile switch into pic and then get pic to vary the resistance with a digital pot say...microchip do them. It seems like what you want though is an actual pot where the resistance is changed, or the wiper is moved , by repeatedly pressing a button, (...)
Hi, I am following the circuit here I am using 12V instead of 24V. 115245 I have not connected a pic to pin A and B yet. Instead I am using a potentiometer. I ground pin A and then drive B with the pot for one direction and then alternate for another direction. T
Hi All, anybody can share your c code here. i am also working on BLDC sensor-less design and using protues for simulation.uC -pic 18F2331 Thanks - - - Updated - - - I think they are using pot for voltage reference ie, pot connected to ADC and read voltage. this ADC value using for PWM duty cycle. ADC will
Hello! i want to how many time my Stroboscope light on / off time. What do you mean? You want to know the duty ratio? As for any stroboscope, the on time should be as short as possible. I'm not sure whether you can do that with a 555, and on top of that, it will not be easy to actually measure the frequency with a 555. You should
Hi, please tell me how to make variable timer using AN0 through potentiometer in pic12F675 ?
I need to send SPI data from a pic to a digital pot in an industrial setting where there is all kinds of noise. The cables, up to 25ft long, also have to be routed close to a bank of switching PSU's. I'm looking for recommendations on line drivers that will provide a pretty stout solution. Any suggestions or experiences? Thanks.
hi i made a little project based on pic 16f8777a to convert a analog pot movement (from zero to 5v) to binary value on 8 led attached to portd. Everything works pretty fine and i want to do a modification that when i rotate the pot the led lights up linearly like a progress bar. i use assembler to write my program and i use proteus to (...)
pot down the 5V input to within the 3.3V range. That is not the thing. Can the span be from 0to 5 by clamping Vref- to 0V and Vref+ to +5V?
Hey guys, i found a intresting project for water monitoring system. Previously i was using Water proof pot acting as a float valve and sending that pot voltage to ADC, that Project didnt last long because in summer temperature is quite hot (40 degree )and the the tank was black i
i have written program for internal adc of pic 16f877a ,so i wanted to check in simulation that by varying resistance output is changing but i dont know how to change value of potentiometer. can anyone help me?
You shouldn't have too large a voltage loss in the resistors. That would be a problem. What are the values of the resistors you are using? And how are they connected? The loss would change depending on the voltage. You can use Adjust the pot until you have 3V at the output wi
I like to Interface JHD LCD (2x16) with pic16F628A. I connected the pic ports to LCD and I build the project. But LCD Blinks and not showing any characters on LCD. I have modified the lcd.c according to pic16F628A like this: Pin Connections: (LCD to pic MCU): 1. GND to GND 2. Vcc to +5V 3. Vee to 10K (...)
How 'bout Vo (contrast) pin? Do you have a trim-pot or voltage divider on Vo pin? (No. 3 on LCD connector)
Do you want the micro to only display the output voltages ? Exactly how do you want to control the output voltages ? ( by pot or by micro and how?)
i have built the above the pic seems to program OK but i get no information on the LCD. i have turned up the contrast on on the pot i checked the voltages on the vss etc 5.1 volts any ideas please regards
hello can anyone guide to me write the code in c for measuring of temperature i got a code and i need to change according to it #include <pic.h> /* cADC - Display the pickit pot Input Value on the built in LEDs This program samples the voltage on RA0 using the ADC and Displays the value on the 8 LEDs using "cLEDDisp 2" as (...)
a complicated method would be to use a stepper motor coupled to a pot. who's Fragrance by the way ??
see attachement .. To activate PNP transistor pic pin has to pull voltage down - ie. it's active "L" action .. and pot should never be at the GND end .. IanP :D
Can any one help me? I got a servo motor,16f877a,20MHz xtal,picC compiler,I have a burner for my pic and I use C when writing a program. I got a 5k pot connected to pin A0 and I am planning to use port D or Port B to control the servo to go left and right when I turn the pot. The problem is I don't know how to start (...)
Hi i can't seem to find which pins I'm suppose to connect to on this old Noble pot i found on some casette tape recorder from like the 80's. It was connected with 3 wires but has 4 legs, one wasn't used(the 2 next to 3 on Measurements: 50k pot / 200k on MM : with pot in midd
I also tried this circuit (fan dimmer) which i found from the internet and interfaced the TRIAC with the pic at its gate circuit worked , however the pot over heated too quickly. I tried replacing it with a 5W 1kOhm resistor...but that too over heated....
I am planning to have this project implemented. But I had not much knowledge on picture here Well, 1st of all is the part on the input at RA0 served as the voltage sensor. I am not
I am new for pic controller. I am testing for inbuilt ADC in 16f877a. I tried in polling method with the help of 10Kpot. I can read the value, but it read as 0V to 2.5V and again 2.5V to 0V. I am applying the voltage for pot is 5V. But it is not reaching the maximum value. What may be the problem. I will attach the coding, can anyone
I don't know what is your final goal, but, the digital pot is one way to go and the PWM too. Are you worried by cost? I would go the pot way. Just careful and simple programming with a small micro that could be in charge of something else in the design.
Hi, guys I want to build a project from the design idea magazine, but i don't know what to use to drive the frequency control inputs (4pins). As i understand these inputs have to be digital so the pic program can compute using a look-up table and output a desire frequency. Can I use a 4 pin Digital pot or an encoder ? Any Suggestions
Quote from : The blue pot adjusts the reference voltage for the pic's ADC. It must be 2.560V or else the ADC will not have the proper step size. A word about that- the pic has 1024 steps on its ADC, and the ref is 2.56V so each step of the ADC is 2.56/1024 or 2.5mV. The LM335 temp sensors
You want an example schematic? search google for 'pic LCD' :) Assuming you are using the HD44780 or equivelent LCD module.... VEE is indeed the contrast adjust, while most people tend to connect this to the wiper of a variable resistor, (each lug VCC and GND) I always end up having the pot very nearly at GND. But I wouldn't connect it direct
hi I'm looking for information(not datasheet) about the pot X9C103. I've difficulties with the programming of the driver for a pic18f252. I'm programming in C with CCS. Has anyone an application of this pot? or some example? Thanks and aloha Pablo
try to find uc examples that have builtin comparator like 89C2051 and some picks too. on and . The comparator user in examples for determining unknown input, value of cap and value of resistor. Examples like find value of pot also...... This may also help