From Arduino nano 33 iot to PCB, programming MCUs
Hi!, I would like to convert my project, which I deployed with the arduino nano 33 iot, into a custom PCB. I have already created my layout design based on the arduino schematics provided on their...
View ArticleRemote control by location (PIC in Oshonsoft)
I'm making a couple of PCBs BASE/TRANSMITTER and REMOTE/MODEL RECEIVER using surface mount components, and PICs, for use as remote control by location (3D). Remote control by location, is when a...
View ArticleInconsistent outputs when using DAC1 and DAC2
I have a very simple app that generates a sine wave, the scope trace is fine. I decided to replicate the logic so I could generate two signals by leveraging the second DAC. Problem is that the output...
View ArticleSTM32F446RE Nucleo - Example of generating sine waves.
This is pretty trivial I know but I learned a lot while putting it together. The simple VisualGDB project generates a sinewave on each of the two DAC output pins. It generates the signals in an...
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When does flag enable and disable in uart communication ?
I need to understand when the flag is enabled and disabled in stranded Uart Communication As shown in figure I have three bytes of data, sending first byte, receiving second byte and again sending...
View ArticleAT89c51 GPIO interfacing
Hi there, I have just read the theory about internal architecture of 8051 I/O ports. According to theory P1 to P3 should be HIGH if they are to be used as input ports.Because if PORTS are LOW then the...
View ArticleAT89s52 Port 0 always HIGH
Hi, I have made an AT89S52 board on zero pcb ( the schematic is shown in the attachment)and burned the below code in controller. The problem is PORT 0 is always HIGH(0XFF). all the other ports are...
View ArticleProblem with cycling though outputs on timer, and (related?) Serial output...
I'm getting some strange behaviour with this, that maybe somebody could help with please? The purpose of the code is to cycle sequentially though 11 different configurations, with each configuration (I...
View ArticleMeasuring Voltage between Neutral and Ground, Earth
Hello All, I am trying to design a controller which can measures voltage difference between Neutral and Ground. Very low information I found on Google and on AAC regarding this topic. Here is my...
View ArticleHAL_TIM_PWM_Stop_DMA does not stop the timer pwm generation
Hey. I am writing a code to drive neopixel LEDs. I need to achieve specific timings to either '1' or '0'. I have set up my timer to 800khz as and set up a PWM dma to send a sequence of bytes for my led...
View ArticleHelp With Pic16F690 and ID1100 Voice Chip
Please read attached files for my question. Everything with the circuit works fine except for two anoying problems. When I first turn on the circuit with the off/on switch the triples message sounds....
View ArticleI/O
Hello. I have questions about implementation of I/O. When a CPU reads/writes using IN or OUT, all data is delivered to devices (their registers or memory) directly. How are port address divided between...
View ArticleData Acquisition System
I got handed the schematic that is attached, and am challenged to build a data acquisition system for a Baja vehicle which is basically like an off-road vehicle. Can anyone please explain this...
View Articlestrategy to develop program for projects
It is a difficult question how to write code for a big project. Its simple answer will be that divide your big project into small parts so that you will be able to write code easily. I want to...
View Articlewhat hardware/AD converter for 20 capacitive sensors with raspberry pi
Hey there, I need to measure 20 capacitive sensors. so far I just have the experience to handle a few over an arduino. now I need to do it with a rapsberry pi to control a software. what ADCs would you...
View ArticleWhich Hardware Emulator and Development IDE/Editor is best for Embedded...
I am new to the embedded development area and doing self-study in this area (I am already from Computer Science background) but I have few doubts and need guidance on the development and testing tools...
View ArticleENC28J60 with AT89S8252/3
Hello everyone, this is my first post here. I currently have an University project which requires me to connect the ethernet module ENC28J60 via SPI with 8051 family microcontroller AT89S8252. I have...
View ArticleAn Idea - wanting to create a Honda Interface module, just dont know which...
So, i have an idea, but first a little background on my project. most cars either fall into 2 categories, those with OBD1 (On Board Diagnostics) which was from from late 80's to 95 or those with OBDII...
View ArticlePython for programming ESP8266/ESP32
For all with interest in application of the ESP8266 and ESP32 family microcontrollers from Espressif, I would like to reccommend the following project we are working on. Based on Micropython, we...
View ArticleHow to program esp8266 to connect to wifi
If I connect an Esp8266 to a battery and dht sensor, how would I program the esp8266 to be configurable by a user to connect to a wifi? Iow, when it is powered up by th user by plugging in a battery,...
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