Microcontroller Top Threads in August on EDABoard.com forums

Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around microcontrollers. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com.

Help with Matlab – I imported my project from MPLAB 8.92 into MPLAB X successfully but can’t simulate it like I do with 8.92. The tutorial indicates that I need a device such as PIC KIT3 between the computer & the PIC. But I want to do it in MPLAB X only as I do in 8.92. I have not been able to find how to do this in the tutorials. Read more

Serial communication UART in 8051 – With 8051, there is only one SBUF register, (but physically two SBUF register, one for read and another for write). Having only one RAM address of 099h, how can it be duplex? How can we read and write data simultaneously, if it is full duplex? Read more

IR remote interfacing basics – I want to use an IR remote for my project. For that, I planned to start with simple IR remote interfacing with led ON/OFF. What are the basics to do that? Read more

Configuration code for selecting internal oscillator – I am new to programming. Just starting to learn the coding. I am using PIC16F887 microcontroller. I successfully simulated the program with PROTEUS. Now the problem comes when I trying to implement it in hardware mode. I want to know the configuration code for selecting internal oscillator. Read more

P10Led panel DMD Font Arabic – I need to write Arabic Letter on P10 Led Matrix 16*32. I have the DMD library but can write only English (Github) Anyone have a solution or another library that supports Arabic? Read more

Problem hearing to sound generated by DAC – After a lot of searching I managed to play a 22kHz 16-bit audio track stored to an SPI SDcard, from the MPC4725 DAC (I2C connected) connected to an Arduino MEGA 2560 R3, but it is too noisy and too loud. Read more

PIC16f877A ADC reading – I used timer 0 interrupt to start reading an ADC, but it does not work when I debug the code. I see that the interruption never occurred. Read more

Arduino Library and MAX7219 LED matrix – There are two type of these LED matrices one like an 1088AX and one like an 1088AX. The difference is the orientation of the LED between the rows and columns. These are reversed in the two AX and BX matrices. The way I look at it is that both matrices can be used in one given design regarding hardware and software libraries used, the only thing that needs to be done is to rotate one matrix 180 degrees compared with the other. Is this assumption right? Read more

Ds1307 RTC in PIC16F690 – controller:PIC16F690. RTC:DS1307. It is working fine for Proteus but it does not work for my actual hardware. Please check my code? Read more

Fan speed control with remote – Anybody have a circuit for a switch on/off with fan speed control with remote control using AT89C2051. I have a board using said circuit but I lost the program. Read more