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1 answer
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ESP32 doesn't process data sent as JSON from the web app while the data is being sent correctly to the ESP32

how are you?. I'm making an application where a ESP32 is being used as web server, currently I have a web page made to configure the device. In this pages is a ...
vram's user avatar
  • 158
1 vote
3 answers
314 views

ESP-WROOM-32 resets when I load a page from my cellphone's Chrome app but not when I load the web app from Chrome on my PC

I'm having a problem with my ESP-WROOM-32. I have a web app that worked fine in my mobile phone until a page with contact information was added. This contact information page has 7 images in .png ...
vram's user avatar
  • 158
0 votes
1 answer
67 views

Connecting nodemcu through internet

I have a NodeMCU and a website (free website domain provided by hpage.com) and I have to send and receive some data (suppose a 8-bit number) from the website to the NodeMCU via internet. The NodeMCU ...
Shounak's user avatar
3 votes
2 answers
803 views

Resistor calculator to get close to a final value?

If I search on internet I see thousands of serial or parallel resistor calculators, where you can fill in the 'input' resistors, and the output resistance is given. However, I wonder if there is a ...
Michel Keijzers's user avatar
0 votes
3 answers
2k views

Is it possible to display HTML page on a LCD display of a discovery board?

For a start my intention is to make a simple webpage with a couple of virtual buttons to control PWM signal. My board is STM32F429I-DISCOVERY with STM32F429ZIT6 microcontroller and 320x240 color ...
Roman Matveev's user avatar
0 votes
0 answers
437 views

Microelectronic Circuits Sedra Smith (drawing tool)

I'm looking for the tool used in the reference "Microelectronic Circuits" (or similar) to draw the circuits. e.g. For the n-channel enhancement-type (circuit symbol c). Any help?
Abdulkader's user avatar
0 votes
1 answer
762 views

Issue of data posting in GSM over the GPRS from when use Different service provider

I'm using Telit's HE910 GSM Modem To Post The data on web-server. so i'm using different company service provider SIM Card to test the data posting from different service provider. In this case when i'...
Kalarav Parmar's user avatar
2 votes
1 answer
622 views

How to create Simple Web Server with Mbed and W5100 Ethernet Shield

I'm trying to develop a simple web server application with Nucleo f411re and w5100 Ethernet shield. My question is why the client.is_fin_received() function always returns 0. Why doesn't my web page ...
Fuzzy_Mind's user avatar
2 votes
2 answers
1k views

Websockets for Embedded Application

I need to clear out my doubts regarding my Home Automation project. I am working on project based on IoT Home Automation project. There are three entities in this project: Web Server Embedded Client ...
isoln's user avatar
  • 69
0 votes
1 answer
2k views

Free online circuit simulator [closed]

Is there some free online circuit simulator where I can see see the electrons fluxing,imitating real-life circuitry?
sergiol's user avatar
  • 391
-1 votes
1 answer
206 views

Can the Arduino Cellular Shield Access the Internet? [closed]

My phone has an internet plan. I took it's SIM card and put it on the Cellular Shield (https://www.sparkfun.com/products/9607) for Arduino, and I was wondering if I can configure the shield to access ...
Vial's user avatar
  • 593
1 vote
1 answer
7k views

using avr atmega32 as web server using ENC28J60 chip

looking for help on making a website on ATMega32 using the ENC28J60 chip iam searching for more than a week .. i found many already-made projects on this, but nothing worked with me .. iam very ...
mina_g's user avatar
  • 1,375
2 votes
2 answers
310 views

Web-resources for learning how to read electrical circuits

I would like to learn how to read electrical circuits. My final goal is to be able to develop some basic "smart" digital devices using microcontrollers. Could someone please suggest a nice web-...
Klausos Klausos's user avatar
7 votes
2 answers
319 views

Is there a free hosting site for electrical engineering projects?

I've recently completed a functional CPU and instruction set simulated in Logisim and an example program for it. I'm now just wrapping up all the documentation for the whole design and would like to ...
Rory O'Hare's user avatar
2 votes
1 answer
185 views

Device that fetches a web API call via wifi showing the result through a display

I would like to build an electronic device that periodically checks some web internet API giving the result through a display. This device should have: Wireless shield to connect to the internet ...
systempuntoout's user avatar
4 votes
3 answers
1k views

Entry level books/magazines/software/websites for a beginner

A bit of background: I have a masters in engineering, mostly electronics. That was years ago however, and I've been working in finance since college. I've learned a great deal of programming as a part ...
Carlos's user avatar
  • 157
18 votes
4 answers
4k views

analog circuit design resource recommendations [closed]

What are some excellent resources related to advanced analog circuit design? This includes RF, sonar, audio, low-frequency, high power, low power, noise, amplifiers, etc.. To get the most obvious ...