Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I made myself a small PCB (measuring about 6cm by 5cm). This is what is supposed to happen:
1. Upon power-up, the LED goes red to indicate that the unit is ready for input.
2. I then press any key down (where the contacts in the button meet), then the red led goes off.
3. The correct value is...
After reading countless of articles about internet protocols, I am in the process of rolling my own wireless one between microcontrollers in which one acts as a master and the remaining as slaves. The wireless devices I use is HM-TRP configured at 38400 baud and connected to the UART of each...
Need helping implementing interrupt to call message by spdt switch .
Use portb or use porta ?
#include <GENERAL.h> ;This is the header file you created for this lab#1
;;; Blinking Module Variables and Constants
;#include "p16f84a.inc"
;__CONFIG _FOSC_HS & _WDTE_OFF & _PWRTE_OFF &...
Hey guys! I am new here, so if this post is in the wrong spot please let me know. I am a recent graduate from Texas A&M and am designing a new item I hope to bring to market, but am in need of some lab equipment to get me started and move onto larger projects. I have put together a spreadsheet...
Hello fellow Electro-Techs, thank you for your time!! I am currently in the process of combining my love for music with my fascination with ucontrollers and am trying to design a midi to cv converter by myself. I am analysing a code and am currently stuck with the following. It is for a...
I have attempted to make an easy AT89C2051 programmer using the schematic I made below:
I have manually tested all possible configurations with software, and the circuit functions correctly to the software but I tried one atmel chip with it and it does not program correctly. It seems to be...
Hello,
I am working on a DIY project to interface a lot of signals to a NMEA2000 bus to be able to controle an older analog engine and other sensors with a new multi function display.
To do so I am using Arduino / Teensy microcontroller together with a NMEA2K library. I started to design the...
Hi all,
I'm working on a personal project that I prototyped using an Arduino uno. Now I'm paying a guy to make a more streamlined version (mine had several issues I didn't know how to solve) and I would like to make the prototype using the microcontroller that will be used on the final design...
I am not formally trained in electronics.....
I am designing a circuit to trigger a PIC using the brake light circuit on my motorcycle. The electrical system is really noisy, and the stray voltages are causing false inputs. I have measured the voltage levels at about 250-350 mv, and the...
Hello,
I have some issues with the activation for all six cores on the AURIX.
If I use only first three cores everything is good. The ECU works fine without debuger connected.
The problem appears when I configure one of the next cores (core4, core5, core6) and the debuger is disconnected.When...
Hi all,
My project is to create an infrared remote to change the speed and switch on/off of a cap start/run type single phase induction motor operating at AC mains (230V, 50Hz).
I have worked out the controlling the speed of the motor part (using a solid state relay to control phase angle of...
Hello all,
I am currently working on a project where, I have to measure the voltage and current at the load connected to (ECU) Electronic control unit in a truck.
The battery Voltage Vin (12V- 48V) has to be varied . The input from the battery will be given to Switch mode DC\DC regulator IC...
Hello all,
I am currently working on a project where, I have to measure the voltage and current at the load connected to (ECU) Electronic control unit in a truck.
The battery Voltage Vin (12V- 48V) has to be varied . The input from the battery will be given to Switch mode DC\DC regulator IC...
Hello,
i want to build a DRM device using microcontroller / something similar.
the idea in general is to hook from one side usb and the outher side to screen using hdmi , and the device in the middle will varified the usb
and play is encrypted content on the screen.
my q. is:
A. Witch is the...
Hello guys,
I am in big trouble with sensorless BLDC motor project. I am trying to achieve the control of sensorless BLDC motor using microcontroller.
I am using renesas microcontroller. I am able to run the motor but not getting first start.
I am trying by sequence changing with particular...
I am using dsPIC33E USB started kit and downloaded the "dsPIC33E Starter Kit CDC USB Device Demo" from "https://www.microchip.com/DevelopmentTools/ProductDetails.aspx?PartNO=dm330012".
I did run the demo code with my pic33 micro-controller, but when I wanted to run the program again I receive...
Hi,
I'm fairly new to microcontrollers and have read multiple guides, although still asking the question.
I have used Arduino for quite a long time and have developed some product concept. I am only 14 years old though.
I am currently developing a wearable project, therefore size, weight, and...
have a a Project that measures the voltage from a 3-phase lines and Display it on LCD using PIC16F877A.
I wrote the code in the mikroc language; the problem is that the LCD shows a lot of wrong characters.
this are the Project code `sbit LCD_RS at RB4_bit; sbit LCD_EN at RB5_bit; sbit LCD_D4...
What I have:
I am using a Teensy 3.2 microcontroller to operate 3 actuators. They are all 0-10VDC signal, and 0-24VAC power.
I am using a 24VDC power supply with a voltage divider to create a 10VDC rail on a breadboard.
Each of the actuators has its own MOSFET, which controls the exact signal...
I am currently working with PIC microcontroller 16F877A. I am only allowed to work in Assembly (nothing high level like C). I have a number saved in a register. I need to display it on the LCD.
I was thinking of separating the digits, then sending the ASCII value of each digit. The only issue...
Hi all,
I feel like I am stuck because don't know how to solve following "simple" solution:
Somehow I have to (each 60 min) activate 12V/2A electromagnet, with 5V input voltage (tipical PC USB (5V/100mA).
5V is powering microcontroller, and with that microcontroller, each 60 min I have to...
Hello, I am a mechanical engineering graduate and I am looking interested in a career in the automotive industry in the field of electronic control systems. I know how to program in C but I am very new to embedded systems. I would like to get some advice on picking out a starter kit that would...
Hi, I am newbie to micro controllers. I am not able to install the drivers which is necessary for browsing. Even when I am using the static ip ( 192.168.7.2 ) for it I am not able to get the content in my browser I am getting this error when I try to install mkudevrule.sh...
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