ESP8266 | ESP8266 examples and toolchain setup
kandi X-RAY | ESP8266 Summary
kandi X-RAY | ESP8266 Summary
These apps accomplish the following:. — ESP8266-EVB-blinkLED : Blink by green LED on ESP8266-EVB. — esphttpd : Advanced web-server for ESP8266-EVB (Config, Rele, Button).
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Trending Discussions on ESP8266
QUESTION
I recently started playing with an ESP8266 and wanted to try uploading to it using WSL. I found the Arduino-CLI command and followed some tutorials but couldn't figure out how to upload to the board. The command I tried running is arduino-cli upload -p /dev/ttyS5 --fqbn esp8266:esp8266:arduino-esp8266 Testing
because I know that the board is an ESP8266 and the is connected to COM5 on the Windows Arduino app. The code compiles and attempts to connect to the board, but cannot get past that part.
This is the code I was trying to upload.
...ANSWER
Answered 2022-Feb-15 at 01:25Just educated guesses here from my understanding of WSL rather than Arduino.
I'm assuming that you are using WSL2, which doesn't have access to most Windows hardware, including the serial ports.
If that's the case, two options that you might try:
WSL1 does have some better direct hardware access, at the expense of some kernel compatibility (since it attempts to translate syscalls rather than virtualize them). You can try converting the distribution to WSL1 via:
QUESTION
I reviewed many solutions and did not find a suitable example.
I have a certain selection
...ANSWER
Answered 2022-Jan-31 at 23:42Keeping the base/root uuid & name in the recursive loop can help for the aggregation.
The solution below uses an EXISTS
to know when the recursion ended.
QUESTION
Using a Expressif dev-board and standard micropython.bin I was able to create a littlefs2 partition, mount it and write data into a file:
...ANSWER
Answered 2022-Jan-31 at 22:27if reformat with vfsFat is close enough to 'getting rid of' you can do the following:
QUESTION
I'm doing this on esp8266 with micro python and there is a way to clear OLED display in Arduino but I don't know how to clear display in micropython i used ssd1306 library to control my OLED
and this is my error I've written a code that prints on OLED from a list loop, but OLED prints it on the text that was printed before it (print one on top of the other not clear and printing) 7
...ANSWER
Answered 2022-Jan-10 at 17:36The fill()
method is used to clean the OLED screen:
QUESTION
Hope you're doing fine! I'm starting to learn about setting up WebServers on ESP8266, so, I'm developing this small project to start into it.
Basically, it's a WebServer with my ESP8266 working as a AP, where I input an HTML form with 6 input values that I'll receive on my ESP8266.
At this point, I've 2 big problems:
1st and most important, the server, the HTML script, & the AP work well overall, since once I upload the code on the ESP8266, and connect to the AP, I can access the form with no issues ( http://192.168.4.1/ ). The problem comes when I input the values and click "SET" to submit them, because it just prints: Not found: /action_page.php
I don't know where's the issue, I tried setting some code lines to redirect the acces if the server is not found, but it didn't even accessed the main page.
2nd, my serial monitor doesn't print any line in this code, with other codes, it prints normally, but this one doen't do it. So I don't know wat I'm doing wrong.
I'll appreciate any advice, thanks in advance! This is my current code:
...ANSWER
Answered 2022-Jan-03 at 06:16Your HTML is submitting the form to /action_page.php
but your web server is handling /action_page
. You need to pick one and be consistent when you use it.
Since you're not actually using PHP I'd recommend changing the form to:
QUESTION
Looks like I broke my NodeMCU Lolin esp8266 module, please confirm)
Firstly everything worked fine, but then...
- I uploaded a bit strange
boot.py
to play with UART0
ANSWER
Answered 2021-Dec-03 at 09:48It's more likely that you are experiencing hardware related issues than software related issues as you imply yourself.
Re-solder the part that broke off and try again. You probably broke of a resistor/capacitor that is used for noise filtering the output (I am not a hardware guy) or something that is vital to regulating the voltage required for the board to operate.
EDIT
As indicated by: https://raw.githubusercontent.com/hallard/NodeMCU-Gateway/master/pictures/NodeMCU-Lora-Gateway-top.png it seems, albeit that board is of a different design, that you broke off a capacitor or diode. Either resolder or get yourself a new one (100nf) or a diode (1N4148)
QUESTION
I built a couple of test IoT hardware devices for home automation which I want to control with an Android app I also wrote. The app will be used by several people.
My plan is to use Amazon IoT Core to let the apps send MQTT commands to the IoT devices.
Since my hardware devices are not very powerful (ESP8266 architecture) I'm going to authenticate via the Signature Version 4 (SigV4) scheme. This auth scheme is useful when the hardware device is not powerful enough to authenticate via the standard privatekey/certificate method; it requires a pair of key/secret IAM credentials to be hardcoded into the device firmware (instead of the certificate and private key).
I then created a test "thing" in the IoT Core console and I can successfully send commands from the apps to the devices (and receive data from the devices and show them on the apps).
My question is, do I need to create as many "things" as the IoT devices? Since each device will have its own IAM credentials, can I just use one shared "thing" for all the IoT devices?
I can't find any best practice online, not even on the official documentation.
...ANSWER
Answered 2021-Nov-14 at 09:00The short answer is, don't go there. A thing is a logical entity in AWS. The reason to use many things is that you can:
- Group them
- Create a certificate for each one (with policies)
- Use the shadow to manage the thing state
- Search them
While you can do what you are saying, using IAM for things is not what AWS had in mind. IAM is supposed to be used by humans. You could use strong names and passwords, but you find it difficult to manage, and you hit the 5000 policies limit pretty quickly. You can give all your device the same username and password, but then how would you revoke a single one when needed.
I'm not a hardware expert but if you really can't use certificates then you don't really need things but do have a look at AWS STS that will let you create temp credentials for your device. You'll have to manage the login process somehow (not using AWS) and then generate an access key and secret key for each device.
QUESTION
I'm trying to print the return value(WiFi.localIP) on my display from the library ESP8266WiFi. But I'm getting an error. For the display I'm using the SSD1306 library.
The purpose of this is to print the IP adress of the ESP8266 on the display.
ERROR:
...ANSWER
Answered 2021-Oct-25 at 15:232 things:
- You are affecting a pointer to initialize a no-pointer variable (with the '&')
- The compiler does not manage to cast an object IPAddress in String.
The use of a function "to_string" would be better.
QUESTION
After I used VSCode (current version 1.61.0) and the Arduino IDE (1.8.13 / 1.8.16 - WIndows installer version) for about a year on two Windows 10 devices both devices stopped showing available Arduino / ESP8266 board types yesterday.
The Arduino board configuration only shows one item "Selected Board:" with an empty drop down.
The Arduino IDE on both devices still works (Tools - Boards show the familiar collection of boards)
My settings (searched for Arduino) are
...ANSWER
Answered 2021-Oct-12 at 15:17Same problem here. I think its a bug in the vscode extension. My workaround is to manually set the Bord type in the .vscode/arduino.json file. Simply add the "board": "arduino:avr:uno", line to your json and it will work.
QUESTION
Hope you're doing well. Im developing a proyect where I need to upload many variables to Google Spreadsheets, for what I'm using IFTTT, which only let me upload 3 values apart from the event name and the upload date.
So, I figured out that to upload more values to my Google Sheet, I'd only need two out of the three values, because I will upload all the variables separated by commas in the slot reserved for "value 1", and a Google Sheet/Excel command to separate it in many cells after uploading them in "value 2".
I tried an example of this in the WebHooks documentation page in IFTTT, and it worked, the problem comes when I create the jsonObject in Arduino IDE, since the code complies and get uploaded to my ESP8266, but in the serial monitor, show me the following error.
14:19:37.419 -> Connecting to maker.ifttt.com 14:19:37.606 -> Request resource: /trigger/my_file_name/with/key/my_key 14:19:37.606 -> {"value1":"0,0,0,0,0,0","value2":"=SPLIT(INDICE(1:2000; FILA();(COLUMNA()-1));",")"} 14:19:38.290 -> HTTP/1.1 400 Bad Request 14:19:38.290 -> Date: Sun, 26 Sep 2021 18:19:36 GMT 14:19:38.290 -> Content-Type: application/json; charset=utf-8 14:19:38.290 -> Content-Length: 68 14:19:38.290 -> Connection: close 14:19:38.290 -> X-Powered-By: Express 14:19:38.290 -> ETag: W/"44-aUxYR3gnF4RvNYXG8uY3kJzvmM0" 14:19:38.290 -> 14:19:38.290 -> {"errors":[{"message":"Unexpected token } in JSON at position 83"}]}Reboot: 14:19:47.425 ->
Seems line a syntax issue, I tried changing (and deleting) characters like "{", "}", but the issues continue, what could be causing this?
The code to create the jsonOject is this:
...ANSWER
Answered 2021-Sep-28 at 02:31Your json should be written as
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Vulnerabilities
No vulnerabilities reported
Install ESP8266
Clone the repository to ```/opt/Espressif``` (or somewhere else, this path seems to be preferred by some people)
Install dependencies: ```sudo apt-get install make unrar autoconf automake libtool gcc g++ gperf flex bison texinfo gawk ncurses-dev libexpat-dev python sed```
```make```, wait a few minutes, done.
Add ```export PATH="${PATH}:/opt/Espressif/xtensa-lx106-elf/bin``` to your .bashrc, .profile, .zshrc, whatever. Or just run it every time you want to use the toolchain.
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