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158 Threads found on Led And Blinking
I powered it from 1st MCLR pin, put 8mhz oscillator with capacitors into 13th and 14th pin, connected led to 19th pin and led is not blinking. ??? MCLR/VPP is not the power pin. Must supply VDD pins 11 and 32. Please show your complete circuit. To simplify the test setup, you can run (...)
Hi. Cannot 'read between lines'... The data sheet for IC PCA9901 shows on page one : "The PCA9901 is a 20 mA current source for a single led that allows stand-alone blinking of a predefined pattern to off-load the microcontroller and save battery power. Programming of the device is done through a training sequence: (...)
h tried to compile a simple project using eclipse and I have this error: Description Resource Path Location Type make: *** Error 1 led blinking C/C++ Problem how can i solve it??
From personal experience, I can tell you that if you accidentally use a DC adapter that outputs a higher voltage than is specified, the power led will blink on a Xilinx Spartan development board. In my case, going back to the proper charger stopped the blinking. Unfortunately the overvoltage had damaged something else on the board and it (...)
Did you provide proper heatsink to these leds ? I mean, did you tied them to some bulky metalic plate, or left them hovering as shown in the picture ?
hello everyone..i have a problem on my project..with pic16f877 microcontroller. My project is a 2 button mode led blinking ..Hope someone could help me..the problem is when I press the 1st button it working such code. but when I press the 2nd button it's not working such the code. which I programming in 2nd condition....
Hello, I'm new here and i'm beginner in electronic circuits, I would like to ask if anyone can help me in this small circuit. I would like to do blinking led (fade in and blink out). I saw some videos on youtube and i found one perfect: I bought components which he used (1x 1k variable resistor
Why is this? Can some explain me the difference between ISE and Vivado with respect to led blinking program? Are you using the exactly the same logic blocks to generate the bitstream for Vivado as in ISE? You mentioned using SDK for Vivado which indicates there is some kind of embedded uP being used, due to which it is necessary to
My arduino Nano is not working. Pin 13 led is blinking with the normal sketch but same program (with other Digital pin) is not giving any results. resistor, led gnd are all in place. This is giving me headaches.
Now, the led can stay still for each word but I would like it to blink and it has to use multiplexer(in 74 series) for blinking. I have found 74153 use for blinking but I can't connect it to my system on Proteus. So, if you know how it work Please help Proteus was included. and photos represent how it (...)
I have to make a very simple program for led blinking . Using buttons 1 and 6 lead me.When the button is pressed for a small time , then led 1 should be blinking. This code is part 2 of the led blink. part 1- Lead 5 & 6 part 2- led 1,2,3 & 4 blinking with (...)
Hi, I am testing a simple program of blinking two leds with 8051 uC, one led will blink all the time and another will toggle during an interrupt. I am using proteus simulator and keil v5. Debugging step by step of the code in keil shows it ok while running the code is not giving satisfactory output with (...)
Hi, I am learning RTOS by myself taking ucos-ii and MSP432 evaluation board as a reference. In the reference code, which I download from its website, I find difficulty in creating two tasks(led blinking) that have different priorities. In reference code, BSP_Tick_Init() function called in the call back function so after (...)
Hi. I found at my workplace an evaluation board based on GSM module SIM508 EVB V1.01, manufactured by SimCom What seems to be the problem: I have inserted a valid SIM card; soon after I activate GSM (by pressing Z1 button ) the GSM_NET led start blinking and then stops after 10-15 seconds. During this seconds ,I receive string (...)
Hi, I am making use of the MODEL FS CT6B tansmitter and receiver, which is used to transmit the data wirelessly. First of all I want to test that one For that purpose I am making use of servo motor to switch between the channels First of all I want to test by blinking led by switching between the channels using arduino software . (...)
my Samsung 32 inch 3D smart TV suddenly not starting up.The screen lights up fully with smart TV logo and goes off in half second. Again full same picture and in half second the picture goes off. the leds alternatively light on and go off.I thought the problem was with mother board . any one help with schematic of this (...)
Hey I compiled simple BLINK led by USB example. The example works well on my every day workstation PC. But when I plug it to the laptop, it says "unknown device" (error code 43). What's wrong, am I forgetting some kind of drivers? I am using example HID Read Write Interrupt (EasyPIC v7 for PIC18F4550). The board c
Were you ESD safe? Why are leds shown backwards? Each output is 25 Ohm nominal ESR so if shorted to gnd or supply and active in opposite state , current limit from 3V is 120 mA !! I calculate ESR as follows. ( actually internal RdsOn) ESR = Vol/Iol and (Vcc-Voh)/Ioh - - - Updated - - - Many kits run fr
Reviewing the original question, I'm guessing that he wants just to draw the circuit and layout of a flash-led, being the Pentium4 the PC platform where will run a CAD tool. Seriously speaking, he needs to elaborate more the need. I have an Intel Pentium 4 and i want to design minimum circuit that is require for r
The blinking led fault code is your clue, most likely one of the SMPS. IF it detects over-current in the CCFL backlights, then the SMPS for those may be one possibility. Does the display color look off-white in the corners? If this all points towards expired CCFL tubes, I know TV parts stores and also DigiKey stock a wide range.
Please provide a sample IAR AVR C Code for led blinking using Timer1 interrupt. I am new to IAR AVR Compiler. I have done led blinking project using delays and it works fine. I need code with Timer interrupts for ATMega32.
HI everyone, Im trying to make my led's blink but i dont know what the problem is with my code. This is what I have: #include (my library) ; ================ EQUATES ========================================= COUNTER1 EQU 0x20 COUNTER2 EQU 0x21 COUNTER3 EQU 0x22 ; ===============================
The way I translate your post: "I did something, or maybe I did not do something. This process results in a .sof file. When I program that .sof file to the fpga the programming in itself is succesful, but the design does not do what I want. When I program an older .sof from somewhere this also programs succesfully, and as a bonus the led goes
I am testing a function that is suppose to blink an led at a certain input frequency. In order to test the function alone I had to define a value for the frequency. I am suding PIC16f17889 I tried to explain each line as much as I could using the following comments. Please advise. #include #include #include
I am trying to implement a led blinking program using EDK.I have selected GPIO leds(datawidth 8) and updated UCF files.When i try to launch it on hardware ,the error "MicroBlaze is under reset.Check if the reset input to MicroBlaze and its Bus interfaces are connected prpoerly" appears.I am using Genesys (...)
Hello, i want to program a STM32F4 board in CoIDE so it can transmit a voltage to a pin and then stop for a while and then again transmit voltage to the pin. I want to program the board so it can send periodically voltage to a ultrasound transducer. It has to do something like this:
Hi I downloaded MikroC 6.4.0 and i try my first program: blinking led. I have one led on RB7. No Qtal just internal osc. This is my code void main() { PORTB=0; TRISB=0; CMCON = 0x07; // Disable comparators ADCON1 = 0x0F; // Disable Analog functions while(1){ PORTB = ~PORTB; (...)
hello, Be carrefull with some device HC05 comming from RPC.. Some have very erratic initialisation... at power on, the led must blinking to be able to associed it to an android BT and then successfully establish a dialogue. Even when using pin KEY .. So must use many Power off /power ON to get led (...)
You are also not using the #defines you added. You don't have to to use them but if you don't you can remove both the lines. The problem Easyrider83 pointed out is that without the extra delay you turn the led off then immediately on again as the loop repeats. It will be so fast that you won't be able to see the led turn off and it will (...)
If you have any form of feedback, you could make a double push. Ok=short push, as wp100 said above. Push and hold get a feedback, blinking a disply or led, and then release and push again to exit, inside a time limit. It all depends on what you prefer. The exit fiunction could also be automatic after a (...)
you want to have leds blinking ? at which frequency ?
Hi I am aashish, I am a pure beginner to 8051 microcontrollers and want to Blink a led connected to port 1 with it (as my first test). It is my habit to start any thing from groundup....... I performed the following steps, 1. Generate Hex file from keil uVision 2. Flash the AT89S52 with this hex file using a 8051 programmer. 3. Connect a L
Hi everyone, I have an assignment to do i.e, 8 leds blinking one after the other on Spartan 3E board. The pattern for leds should be started from right most led and continue to the left one. after one round completion it should again be started from right. I know the basics to divide clock, the question (...)
currently i am working on gps . my gps is connected and its led is blinking. i have read some data on hyper terminal . i have a image of hyper terminal . i dont know where are my coordinates in this data. can anybody guide me about it . i want to put these coordinates on this web www.gps-coordi
hello, I am working on a similar project... i try to use HC06 and /or HC05 as slave i can establish the link to configure HC05 or HC06 but it seems difficult to put the BT device in the good state when power on. To be able to put AT command , the BT module must have his led blinking.. if not , no chance to get a (...)
I'm testing a MPC8315E board according to EN 50155. In normal temperature (25 degree) , the board worked. The board now have just CPU and NOR FLASH , test program is U-boot led blinking. 1) During low temperature cooling test, CPU will not start up at -25 degrees after cooling for a while. But If I power on 1.0V before 3.3V (...)
Hi there,can you list all the components? its hard to read in the circuit diagram.sorry for my limited knowledge.thanks and regards - - - Updated - - - Hi there,can you list all the components? its hard to read in the circuit diagram.sorry for my limited knowledge.thanks and regards
Hi guys,i want to modified code to show blink led difference,how to optimized the code.when i click one show one way and click again show other way. #include #include unsigned char tmod=0; unsigned char i ,j,tmp; void delay_1ms(void) { unsigned int i; for (i=1;i<(unsigned int)(1144-2);i++); } void delay_ms(u
I have a problem in SIM detection in SIM 900 module. When I insert SIM in the SIM card holder, sometimes it detects SIM for 10-15 times (i decide the SIM detection by the blinking of led and time it takes to blink again) and then it doesn't detect the SIM. Till now the method I adopted was that I plugged out the SIM 900 (...)
Dear masters, Please help me. I have NEC Laptop, model Versa P8100 with Intel Pentium Mobile Celero 1,7Ghz, 2Gb of ram. have trouble the LCD screen is Blank... even Back lgiht not light. and, the power led and charging led was blinking... Fan for cooling system rotate in high rpm. i've browse for (...)
i have a used for series led blinking using PCR406j . so is that other way to use instead of PCR406j to other transistor like BC547/8.
there is no need to give vcc to TE pin. for checking that ht12e is working or not, connect an led to pin 17 when you connect the TE pin to ground led will be glow.(actual method use CRO because you can't see the blinking at 434 mhz so it will look like continuously glow) connect +ve of led to pin 17 and -ve (...)
Hi... Im novice to AVR mcu and its various programming/prototyping methods. I had installed atmel studio6, managed to get STK500 programmer, and after some attempt succeed in programming simple led blinking program on mega8515 available on STK500. apart from this i don't know much about programming, (...)
Hi friends since long time i was busy with STP16CP05 led driver ic. Its a serial in led driver with 16 bit output. I made myself development board for learning. Codes work ok but now next step project is to make blinking leds or some leds are blinking some are continious burning. which (...)
Use a switch (TACT) and led. led should turn ON and OFF on pressing the button.
Hi All, This day, I'm trying with ARM microcontrollers (AT91SAM3S2B), and have an error when compilling. I'm using SAM3-P256 dev board from Olimex, Eclipse + Yagarto and the file for blinking a led is lisled below. 9413994140 this demo software is from Olimex. *----------------------------
First I thought the HC 01 is damaged. But after some works I got the led (31) is blinking at a slow rate when 34 is connected to VCC. When 34 is connected to GND/Floating the led on 31 blinks fast and shows in bluetooth device search in mobile. Sometimes after ~1 minute led blinking stops (...)
Any body know about how to simulate dsPIC30F with matlab simulink ? Can you explane with simple example like led blinking.
Hi colleagues, this topic start with "I am trying simple led blinking code" and until now we have 25 reply including from Super moderator, several Advanced members... greath forum with proffesional approach, that?s is reason WHY EDA BOARD is the best electronics forum on the world best regards for all...
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 problem. Like when i connect POT-HG (...)