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162 Threads found on edaboard.com: Lcd With Adc
Hello, From your experience can modern lcd screens (with a VGA input) be driven with "out of spec" resolutions and timings (much under the maximum bandwidth) ? For example: 800x600 30FPS , 600x500 11FPS etc...
the lcd screen was showing texts and keypad touch successfully when adding adc_read(0) ntg is shown the lcd Understand a question posed like that is a real puzzle; anyway, concerning to the code in question, I would recommend review the adc_Init() command to know exactly what it is supposed to do. For instance, we d
Hi For my new project i have to display signed analog values on lcd. ie both positive and negative values i have to display on lcd. The adc i am using is AD7714 and the MCU is ATmega8. I configured the adc inputs in the differential input form and i set a constant voltage(+1V) at one of the adc inputs as (...)
Hi For my data acquisition project i need to interface the external adc AD7714 with my micro controller ATMEGA8A which is running in 16MHz. The adc is running in 2.4576MHz. These two are interfaced by SPI protocol. i configured all the registers and when i am trying to read the data from the adc and displays in (...)
Hi, I am going to use CS5460 with AT89S52 . I have successfully able to read/write from/to CS5460 adc. Read some default register and shown result on lcd. Means my SPI routine are working fine. OK .. I have to measure 220V 15A 50HZ . CS5460 has large number of registers. I am following "AN220 from Microchip " ( www.t-es-
I am having trouble displaying the values of a changing register on my lcd. I tried using sprintf() to show the values of my ADRESH and ADRESL but this showed up to be higher than expected. This is my code for accomplishing that. This is the program I have up to now. The variable value from adc is shown on the lcd however there is a problem (...)
i guess in its code use fft code but with this micro and this freq sampling from lcd and this osilator how its posibble? The FFT function requires a lot of the uC resources and unless runing with a DSP compatible ALU, will not be able to get the result realtime.
I am trying to Displaying adc value to lcd as voltage ie 00.00Volt. May i get a tutorial program for it . I just write the following code .please help me void value_coverter(unsigned int adc_value) { unsigned char temp; vout = adc_value * 0.00488; int_value = vout; // only decimal part vout = vout - (...)
At this rate, you should necessarily compress the data to fit at the lcd viewable area. The most intuitive way to do that could be by taking the average value, or even interleaving samples.
Now both variable are declared as float and I apply your code the answer is strange am attaching the image that what i get after applying the code. my expactation was 2.500 but the lcd displayed 159.843
I wrote a code for reading adc value from POT and displaying it in lcd but proteus showing it as Simulation not running in real time due to excessive cpu load code is // lcd module connections sbit lcd_RS at RB4_bit; sbit lcd_EN at RB5_bit; sbit lcd_D4 at RB0_bit; sbit (...)
coding for sending the data from adc to the lcd for displaying. m using 2 sensors interfaced with the adc like ldr and lm35 and want to send the data to lcd :roll: Hi, It's better if you can show us some of the code that you may have done. Thanks
can anybody plzz give the code and schematic diagram for following. i want to do display lcd using adc pins in atmega16. so i m in thought to do it for temperature display using LM35. so plzzzzz send me the code and schematic diagram and i want to execute it in proteus and then do hardware.......plz do help me........awaiting for reply.......
Now you have to make it work with interruptions only... look for examples of adc interrupts on the web, each time the adc completes, you have to do a quick calculation for each Form1 and Form2 values... then make a timer interrupt (maybe TMR0) and every time it interrupts, you check Form1 if it's higher than 9.8 and fix your duty1 according (...)
I presume you are using a processor with shared analog/digital pins, e.g. a PIC. for adc i/p to mc: will the lcd data pin act as load or will it be in high impedance state? It's high impedance as long as it isn't enabled for read operation. for lcd i/p from mc: will the analog input affect the lcd (...)
Can any one help me on this. I am working on voltmeter using the adc of pic6f877a with lcd , my code works perfect on proteus but when i implement it, it won't respond fine. At times it display, at times it don't. Pls i need help.
I think a Waveshare AD Keypad will be better. It needs one adc pin to interface 4X4 keypad for RTC setting and lcd navigation. A MCP9808 will all do.
I am facing too much problem while working with DSPIC30F4013. When i am sensing a dc voltage of 15mV from a circuit adc value gives zero. At 23 mV dc adc value only 2 or 3. I am giving my program here. please give me a solution. // lcd module connections sbit lcd_RS at LATD0_bit; sbit (...)
Hi all, I get my first exact work for my PSoC Project. I Need help for this. I want value of adc_DelSig with Resolution bits 16 & input range Vssa to 1.024V (0.0 to Vref). This value i want to Display on lcd. I write some code for this from the reference of Example code "Ex2_adc_to_lcd". But it Display (...)
which microcontroller are u using? The selectable 12 position switch will have perticular voltage output for each selection. This voltage can be given to adc and corresponding msg can be read from ROM and sent to lcd_print function. is lcd alphanumeric or graphic? If its alphanumeric there are plenty of example codes online. Can u share the (...)
hello, Give more details.. what is your full scale of milliamp for 5V on RA3 adc input ? with adc 10 bits => you will get 1024 pts for the full scale... How do you display the result ? UART -> RS232 -> terminal or on lcd 2x16 car or ?
hello everyone, Here is the proteus simulation of my code.I am just trying to display temp on lcd screen but when i connect lm 35 to any of ad pin then lcd is displaying any garbage values and without connecting the sensor lcd is working well.here i m just printing "pra" while no adc code is running. (...)
Hi all, i have searched a lot in Google as well as in our forum. but i didn't get a correct solution. :-( i am trying to read ac voltage with adc (channel 2) and display it to lcd. it shows value 486 (can be scale to 0) when ac supply is off. but when the supply is on it hold the lcd display in the previous position. :?: (...)
hello, temp = numb/10000000; temp = (numb/1000000)%10; temp = ((numb/100000)%100)%10; i suspect a probleme, even i didn't try your code... for the first 3 items.. because you will allways get 0 as result with using unsigned int for variable Temp. (Divider is over range > 65535 !) i propose this code , C18 MPLAB use
hi can anyone tell me what is wrong with this code and circuit digram.maybe you think the are alot of unnecessary line,i know but this code for test. port equ p2 ;lcd port en equ p2.7 ;lcd en rs equ p2.5 ;lcd rs dr equ p3.4 ;adc RD rw equ p3.3 (...)
Hello, I am doing a small Project in which I am supposed to display the volts through a potentiometer (0-5V) on an lcd operated in 4 bit mode. I am using Atmega32, a 20x4 character lcd . I am just to rotate the potentiometer and the lcd should display VOLTS="0.00-5.00 V" as I move through on lcd I am to (...)
Remove adc_Init(); Change these if(5<=temp<15) if(15<=temp<20) if(20<=temp<70) to if((temp >= 5) && (temp < 15)) if((temp >= 15) && (temp < 20)) if((temp >= 20) && (temp < 70)) The adc value you are getting should be between 0 to 140. What adc value are you getting on lcd? char
Hi friends this is selvakumar i am interfacing ACD with lcd display, in that i am facing a problem with adc reading i could't get stable output in lcd display e.g For 5v analog input i get output like this- 1023,1021,1022(it does not remains constant) but i get proper output in PROTEUS but not in (...)
There are no lcd pin defines. Include lcd pin defines before #include <lcd.c> See inside lcd.c. It mentions how the lcd pins should be defined.
Hi, Your 0 -5v adc result is in 1024 steps, so to represent 0 -30v you must divided the 10 bit adc result by 34.13 You then use an ascii converter routine to convert that value to ascii characters suitable for displaying on the lcd.
Hi, I have an issue with displaying multiple values on the 2nd line of 16x2 lcd. There are 4 channels of adc which I am using to read the values & display it on lcd. The reading from the adc is fine, but displaying it in a scroll manner only on the 2nd line is an issue. My first Line is also scrolling. (...)
Hello Everybody, I hope someone will help me in resolving my problem. I am new to Microcontroller and Mikroc. My project details in short is given as below. 1. I am using PIC16F886 for this project. 2. I have setup 2 adc on PORT A0 and A1 for input. 3. I have setup a Button(Push to on Switch) on PORT A1. 4. I have setup lcd 2 x 16 on PORT
Hi there i'm building an canbus with 3 node..2 collector node 1-temperature 2-adc voltage. data send on display node with 2X16 display line 1 is temp line 2 is volt Everything works fine.... my little prob is if one of the these node is down (or missing) my display node stop of working (cause it's waiting for receive data) does (...)
max1497 is adc with 3.5digit lcd driver Max1497 needs lcd with individual common pin for each segment. Searching gives me results with one common (for all segments)pin. I need .7 or 1 inch display. Any one who used it / know where it is available can please provide details. (...)
hello everyone! I faced a problem with this simple code where I wanted to flash IR transmitters, get the adc values and show them on the lcd. But the compiler gives some errors , which I can not understand .. /* * sensor_with_adc_2.c * * Created: 7/20/2013 8:20:42 PM * Author: Nasim */ (...)
hi I'm using Pic18f4520, the temperature sensor doesnt give the correct values. the values isnt consistent at all too. Temperature sensor is connect to AN12 of the IC I display the adc reading into the lcd, the values kept jumping from 50 , 70, 100 back to 50. Can anyone tell me whats wrong with it. thanks
hi to all, i am new to LPC1768, i have the io toggling and lcd program. but now i am stuck with the adc. please help its urgent here is code #include void adc_initail() { LPC_PINCON->PINSEL3=0xc0000000; LPC_adc->adcR=0x00200120; } void GPIO_config() (...)
Hello!! i am using LPC2138 to do some experiment with ARM. Started with LPC2138 Because it is available in Proteus. Had write the codes for lcd, UART and LED Blinking but the problem i am facing with adc is that, it working well in Keil Simulator. But when simulating it in Proteus, is creating a (...)
It can't work in simulation also. How can it give right adc value when conversion is wrong? conversion(unsigned int val) { unsigned int m,n,o,p; m=(val/1000); n=(val/100)%10; o=(val/10)%10; p=(val/1)%10; lcd_data(m+0x30); lcd_data(n+0x30); lcd_data(o+0x30); lcd_data(p+0x30); }
Hi, Are you simulating or you have the hardware built to test? Secondly, specify what programming language (MikroC?) or other. From code above you are reading two adc's adc(0) and adc(1) and displaying them on Line 1 and 2 of a 2x16 lcd ? Let me see schematics. Cheers
Hello everybody can some body help me to solve the issue of push buttons in my program here,see the codes: #include <16f877a.h> #DEVICE adc=10 #Device *=16 #fuses HS,NOWDT,NOPROTECT,NOLVP,NOBROWNOUT #use delay(clock=20000000) #use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7) #include "lcd.c" #define ARRAY_SIZE 191 //#define ARRAY_SIZE 250
Hello every body,can you plz help me to handle the following issue;I want to display on the lcd 7.0%; 7.1%; 7.2%............. depending on the value read on the T1CKI of pic16f877A that number read is compared to two numbers of two different arrays and then those 7.0% ; 7.1% ...are printed: see my codes: #include <16F877A.h> #DEVICE adc=10 #fus
It gives me 5.005V instead of 5.000V (assuming adc_rd = 1023); Even if there is a cast problem from the code, this doesn't seem reasonable. You get this 5005 value from the adc read, or you see this result on the lcd? Maybe there is a problem with the lcd code, that's why I'm asking.
Hello! how to set adc delay time...when it show in lcd not fixed..freq is 20mhz..,fosc/64...and delay is code I don't understand at all what you are saying. You may consider to stop talking in Morse code and make full sentences (you know: subject, verb, complement,etc..., beginning with a capital letter and
hello.. I have weird problem.. when I am simulating adc 0804 with 8051 mc in proteus and displaying on lcd then it gives correct simulation.. but as soon i palce an another adc to convert other input to digital then it stops working.. does anybody knows about this issue?? :???:
I am using three sensors(soil moisture, LDR and rain sensor) with adc MCP3204 which is interfaced with 89C52 controller and now i need to program that but i am not able to make it... Moreover, I need to display the moisture content on lcd and that too in percentage(%). Can anybody help,, please?? It would really be (...)
Hi guys... I am beginner in C programming and microcontroller. I need to design adc converter in PIC18F8722 programming in which need to interface with 16 x 2 lcd. I using CSS Compiler to run C programming in my project. Is anybody here experience with this before.?? >.< Thanks for anyone replied to this post.,
Look at here may be helpful
Hi,every body I want to read the frequency from the function generator and use the PIC16F877A here below are my codes which are not working can you please help me to handle the issue. Help me plz. - - - Updated - - - The codes are here below: #include <16F877A.h> #device adc=10 #fuses XT, NOWDT, NOPROTECT, PUT, BROW
I'm reading the 16 bit adc value and displaying in lcd using MCP3421. When i use inbuilt I2C functions in CCS, everything works good. But I'm trying to use the registers and displaying the value. Below program shows how i configured. But in the display, it shows different value what i expect. Please help #include "18F2520.h" #include "f252