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measure pulses over serial

Hello all, I want to write an application which can measure 5ms,2ms and 8ms pulses of signals received on RS485 bus.

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SD card read files with LCD

Im trying to read text in SD card and display on the LCD but it display 2 weird characters after the text. What is it and why does it show up? Here is my code: Code (Text):   #include <SD.h>...

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Designing a simple alarm circuit using microcontroller

I am designing a simple alarm circuit using PIC12F629 and I need advise from this forum of experts on how I could accomplish and fine tune the circuits. The alarm input set the GP0 High and flashes an...

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Relay Backeffecting the circuit

Hello everybody. I am currently working on arduino based home automation using bluetooth voice command but its not working fine for me as I am encountering problems with the relay driver IC ULN2003...

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Pic bootloader wireless question

Thank you all for reading my post. I was wondering if it is possible to do the following: I have a PIC18f26k22 which is bootloader capable. I am communicating over two of the above mentioned PICS w/...

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Help with Compiler error

Hi. I'm using MPLAB X IDE and XC8. This code was originally written for MPLAB 8 and C18. Fairly new to PICs so I wanted to learn the latest software but I keep encountering problems with legacy coding...

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Finding reason for ERROR message MPLABX

Thank you for viewing my post. In my program for a PIC16f690 I am working on, I am finding the following error: Section '.org_2 can not fit the absolute section. Section '.org_2' start= 0x00000005,...

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Old Embedded Systems that are still running.

I was having to issues with a machine that was traced to a control chassis with this baby in it. It's part of a FORTH based real-time motion control system. I've used FORTH but never really liked it as...

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AT89S52 recceive code but does not working

The AT89S52 receive hex code but does not working , what should I do now & where is my problem?

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Bluetooth Servo w/LED's. issues...

Hello all and thanks in advance. If someone could help me with this I would be ecstatic. I just cant see what is wrong with my setup. As the title states. bluetooth servo... most of you are familiar...

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Tricky SPI communication with request and response structure.

Hi Friends, I have to implement a SPI request_response function for 8-bit microcontroller. This function has two arguments one is request command structure and other is response structure which is...

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PIC12f1571 Assitance - Reading/Writing to Flash

Hello, I am working on a project that is using a PIC12F1571 to run the operation. The goal is to have the microcontroller store the LED state in memory and read it. At start up, the default state is...

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Arduino Uno transistor tester

I am bread boarding a circuit with a bunch of unlabeled bipolar transistors and have an arduino uno around, slated to build something later. What I am looking for is an arduino project that would...

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LPC2119 Reference Books

Hi all, I've just started learning and experimenting with the LPC2119 micro controller. By any chance, anyone knows where I can find a good reference book or other helpful content please? Many thanks...

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Can't get T1 to run on external clock source

I don't recall ever using an external clock source for T1. I guess I am trying it for the first time and can't seem to get it to work. My chip is the pic18445k22. I have everything hooked up as in the...

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External Trigger pulse reading

I have been using PIC18 micro-controller for generating reference signal and a charging signal at 100 Hz rate max. Now I have to generate this charging signal on sensing an external trigger pulse of...

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SD card read files with LCD

Im trying to read text in SD card and display on the LCD but it display 2 weird characters after the text. What is it and why does it show up? Here is my code: Code (Text):   #include <SD.h>...

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measure pulses over serial

Hello all, I want to write an application which can measure 5ms,2ms and 8ms pulses of signals received on RS485 bus.

View Article

Microchip MPlabX development hardware

I've been playing with some Pic controllers and some custom boards I've made, and I've found I dislike being tied to my desktop. Anyone here have a recommendation for a lightweight (size and cost)...

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Relay Backeffecting the circuit

Hello everybody. I am currently working on arduino based home automation using bluetooth voice command but its not working fine for me as I am encountering problems with the relay driver IC ULN2003...

View Article
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