what is the PWM frequency FOR CONTROLLING THE CEILING FAN (230 VAC,50Hz)
I every one today iam planning to do simple project ,fan speed controlling with pwm. I am little bit confused when i am choosing the PWM frequency. how to choose the pwm frequency?
View Articlewhat arm are you all using?
Hi guys I want to pick a one or two arm dev board to have a play, there are so many companies to choose from. I am interested to know what company are you using? Thanks a lot! PS: Mainly on ARM M series.
View Articleglcd touch panel not working!
hello i am having a problem with my touch panel in my easypic pro V7 with the PIC18F87K22 microcontroler as a default. i need a help on how can i connect the touch panel to the board easypic? I have...
View ArticleDelay function timing not matching.
Hi, I am using MPLABX and XC8, with PIC18F14K22. I am trying to use the __delay_ms () function to set a delay time. It does delay, but not for the expected time. Below is the code im using, I would...
View ArticleQuestion about ARM processors
I have a question about embedded ARM processors and how they actually compare to the x86 architecture. Is there any comparison of mobile arm chips to Intel's x86 in terms of performance per watt? Like...
View Articleprogramming pic
PORTA.F0 = 0; delay_ms(650); PORTA.F0 =1; delay_ms(650); after excute program above the output pin is off PORTA.F0 = 1; delay_ms(650); PORTA.F0 =0; delay_ms(650); after excute program above the output...
View ArticleRaspberry pi DAQ // Reliablity
Hello everyone , I ve been working on building a data acquisition system for some days now , I have used raspberry pi as one the components in the system . I am about to fit the system on clients...
View ArticleBlinky prop for Comic Con
I'm making a little blink led prop controller for my kids Comic Con costume. I've got my best Dr. Strange T-shirt for the event and Stan 'The Man' Lee is there for an Autograph on one item of your own....
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Bus Pirate - UART Live Monitor
I am attempting to monitor the data that is being sent from an embedded linux device to a peripheral piece of equipment in a system. Please see attached diagram I have made depicting the normal system...
View ArticleEsp8266 and nrf24l01 communication system
Hi everyone, So, I'm pretty new to the esp8266, but have some experience with arduino (I'm certainly no master however). I'm working on a project that uses an esp8266 and a nrf24l01 radio module to...
View ArticleProgramming PIC Microcontroller in C
Hi members, I am new to microcontroller programming. I want to program PIC 16F18345 microcontroller using C language on MPLABX IDE, XC8 compiler. Please let me know good online tutorial where I can...
View Article50Hz PWM frequency for controlling speed of single phase ceiling fan?
Hi every one I am little bit confused for choosing a correct PWM frequency for speed controlling of single phase ceiling fan.
View Articlezero overhead profiling vs in circuit emulator?
This paper claims to do pretty much what in circuit emulator can with no hardware support: https://www.scribd.com/document/323615399/Issta-2016-Zop What's the difference between this and an in circuit...
View ArticleNeed help! Nucleo STM32F401 board. UART communication
Hello, guys. I really need your help! I just started working with Keil RTX RTOS. I have worked with 8 bit AVR microcontrollers before and I understood it pretty god I would say.. Now, I am lost with 32...
View ArticleUltra low power in a PIC18F microcontroller
I am designing a Nixie tube watch. It is all on proto board at the moment and am still testing it. It runs from a 100mAh lithium battery and I obviously want it to run at the lowest power possible....
View ArticleAVR micro controllers
i have some doubts regarding the avr micro controller i was reading the book mazidi and i got some doubts 1. there was a question like this STS ORC0 ,R17 why is it wrong is it because STS cannot...
View ArticleReading register using Modbus master/arduino uno
1. I ma using this modbus library to read (EM)6433, meter from scheider. Lib: https://github.com/4-20ma/ModbusMaster doc: http://4-20ma.io/ModbusMaster/ 2. (EM)6433 documentation is here:...
View ArticleElectrical Engineering & The Internet of Things
i had to look up the "IoT" from web . . . ? 1999 ((☁⑊☂♒⌇⌇☣☢☠♨☨☦☄❈ )) - something i've missed https://www.idtech.com/blog/electrical-engineering-the-internet-of-things/
View ArticleAttiny2313 with MOSFET PWM Controller 18V and 9V configuration
Hi Everyone. I built an ATTiny2313 that sends out a PWM signle to a MOSFET motor controller to control the speed of a motor. The Power source for the Motor is running from a 18V (12v and 6v) source...
View ArticleMeasuring IR for replay.
Hi everyone, I was doing some reading and I wanted to confirm that IR usually operates at 9600 baud or less. That seems kinda odd that its standardized based on my searches. Anyways, I have an ATTiny85...
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