2,480 questions
0
votes
2
answers
57
views
How to detect the end of an ESP-01 (ESP8266 AT command) UART response when receiving with interrupts?
I’m working with an ESP-01 (ESP8266, AT firmware) connected to an STM32 “Bluepill”.
I receive data from the ESP using UART interrupt (HAL_UART_Receive_IT) and I want to detect when a full response ...
0
votes
0
answers
39
views
Eclipse not able to resolve datatypes in ESP8266_RTOS_SDK
I am working with ESP8266_RTOS_SDK, I have imported an old project from my backup which used to run fine earlier when I was using an old system. I have installed the complete tool chain (make / xtensa/...
- 39
1
vote
0
answers
29
views
Why I am getting two BIN files when I convert elf2image using esptool elf2image?
So basically what I am doing is, I created a simple Blink LED program using platformio for ESP8266 (no big deal). As we know, we get firmware.bin and firmware.elf files in .pio/build/nodemcuv2/ folder....
- 63
0
votes
0
answers
25
views
ValueError: Invalid Key while trying to upload code to ESP8266 device
I'm trying to connect my NodeMCU (ESP8266) device running Micropython to AWS IoT but wwhile running the code I'm getting the following error:
start connecting
Connected: True
Key and Certificate ...
- 898
0
votes
1
answer
122
views
ESP8266 keep crashing when I write file
I am using Wemos Mini ESP8266 and trying to make control panel on this platform.
But i have stuck when it needs to save data to a file.
Tried to using LittleFS method to save json to file, still ...
- 17
0
votes
0
answers
36
views
ESP8266 Unable to Connect to Two WebSocket Servers Simultaneously Using arduinoWebSockets
I'm trying to use an ESP8266 to connect to two WebSocket servers simultaneously using the arduinoWebSockets library. This is a snippet of my code. I then attempt to display data on 7 segment displays.
...
- 3
0
votes
0
answers
45
views
ESP01 AT Command module with Google Firebase Realtime Database
I am working with a ESP01 module with AT Firmware, I have been trying to establish a communication between ESP01 and the Firebase database to read and write some numerical value but right now I am ...
0
votes
1
answer
84
views
Why does AT command don't work with ESP8266-01?
i have a problem with my new ESP01. I tried using AT commands with the baud rate of 115200, but don't receive OK answer. I also tried to flash it and didn't quite succeed as it's just flashing that ...
- 15
1
vote
0
answers
40
views
Websockets esp8266, php Workerman - how to send close signal when turning device off
I make a device on esp8266, which connects to php Workerman websocket server via websocket using WebSocketsClient.h library. Everything works, connection is established. But when I turn off the device,...
- 11
-2
votes
1
answer
47
views
TypeError: function takes 1 positional arguments but 2 were given
I am trying to interface multiple buttons with Esp8266 and display it on a 16x2 LCD. I am using micropython. Here is my code
import time
from machine import I2C, Pin, Timer
from i2c_lcd import I2cLcd
...
- 3,730
0
votes
1
answer
110
views
ESP32 online builded firmware can't boot
I tried to install nodemcu firmware to ESP32 C3 super mini board, with firmwares builded on https://nodemcu-build.com from dev-esp32-idf3-final branch.
After flashed, the serial console outputs very ...
- 855
-2
votes
1
answer
90
views
HTML5 Server-Sent Events: new EventSource as variable
I am working with ESP8266 moduls in Wifi-Station Mode. Each new ESP8266 module is assigned a different IP address by the wifi router. That's why I need the Ip addresses as Javascript variable, but ...
1
vote
1
answer
57
views
Esp8266 randomly resets after a lot of time (9 hours)
I have esp8266, it connected to 3 temperature sensors. I put all data in list (temperature and time). After 9 hour of work esp8266 just refresh everything and all data get lost. I tried check my code, ...
- 13
1
vote
0
answers
118
views
ESP8266_NONOS_SDK vs Arduino Framework - Interrupt Differences?
Just for the record, I am a C# developer and tend to focus more on api's and backends, firmware development / C / C++ is EXTRERMELY new to me!
I have been asked to port our existing ESP8266_NONOS_SDK ...
0
votes
0
answers
87
views
How do I create a Firestore document using ESP8266?
I'm pretty new at firebase and in my arduino project, where I use an ESP8266 01S module, I want to hardcode an Id, representing the Arduino project. Then with that Id I want to create if not already ...
-1
votes
1
answer
77
views
Transaction won't occur on Sepolia-Ethereum using ESP-8266 Microcontroller using Micropython
I'm trying to execute "transfer" function of an ERC-20 token with my ESP8266 Microcontroller using Micropython. The problem is Micropython doesn't have libraries like web3.py so i have to ...
0
votes
0
answers
87
views
updating variable on local hosted webpage without reloading
I have had this problem with an esp8266 nodemcu where I cannot seem to find a way to update a variable on a webpage without having to sit there and spam F5, the project is for a weather vane to show ...
- 11
1
vote
0
answers
90
views
Connection failed between my ESP8266 to the API
This is my code for ESP8266 trying to send a request to the API to get a response.
But when I am trying to scan a QR code the output is always connection failed, at first I thought it was because of ...
- 11
0
votes
0
answers
71
views
Connecting to MQTT server problem solving
I have ESP8266 project in Arduino IDE that connects to AWS MQTT server. For this purpose PubSubClient (https://pubsubclient.knolleary.net/) library was used.
After connect procedure execution I get ...
- 18.5k
1
vote
1
answer
443
views
Connect websocket on esp8266 to local server using IP
I started working a small "smart home" project to learn about embedded development and Rust. I have
an ESP8266 with a DHT to measure humidity and temperature, written in C++
a server ...
- 305
0
votes
1
answer
74
views
Parsing RGB HexCode String for a ESP 8266
I'm working on a project where my ESP8266 receives color hexCodes from the internet and then I use that color for an LED strip.
An example text that I receive is "$3#FF00FF"
However my code ...
- 79
0
votes
1
answer
108
views
ESP8266 umqtt OSError -1
I have an ESP8266. On this board I'm running the newest Version of the MicroPython firmware (1Mib).
I have a Java Vaadin Web Application with 2 Buttons. One Button is for publishing, that the LED ...
- 1
0
votes
1
answer
61
views
Print long double value and clock_t as a double - ESP8266-RTOS-SDK
I can't print clock_t as a double or print time elapsed
void app_main()
{
clock_t start, end;
long double cpu_time_used;
start = clock();
ESP_LOGI(TAG, "Elapsed time");
ESP_LOGI(TAG, &...
- 11
1
vote
1
answer
157
views
I can't send AT command to my backend server from ESP-01. Error 400 Bad Request
Hi I have been trying to use stm and esp-01 and cominicate with firebase with backend server. my backend server js is this:
const express = require('express');
const app = express();
const ...
- 11
0
votes
0
answers
75
views
esp-01 wifi module STM32F4 discovery firebase
I want to send data to Firebase Realtime Database using stm32f4 and esp-01 wifi module.
this is how I tried to connect and send to firebase Realtime Database
connect firebase and send message funciton
...
- 11