Questions tagged [esp8266]
An IC that offers Wi-Fi networking compatible with b/g/n standards. It also has integrated TCP/IP protocol stack. Extremely popular along IoT community as a low cost and powerful board.
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Connect ESP8266 with Android Studio App
Hey guys I have ESP8266 and want to remote control a sailboat with it. Till now it works fine but how is it possible to send continuous data between the Arduino/ESP8266 and my smartphone? If you need ...
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ESP8266 01 doesn't react after baud rate change
Hello guys I have my ESP8266 connected to my Arduino. Then I typed in AT in the serial monitor. It confirmed this command with OK. After that I typed in AT+UART=9600, 8, 1, 0, 0 which gave me the ...
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Arduino compatible ESP32 and ESP8266 board power consumption at sleep state
I have data on smaller modules with ESP32 and ESP8266, but can't find anything reliable pertaining to the whole board power consumption (current) with 12V input and microcontroller at low power or ...
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I'm looking for the StreamSend.h library for use in Arduino/ESP8266 serial communications using struct [duplicate]
I've come across an interesting yet old article within StackExchange which has great examples of sending structured variables over serial communications. The library StreamSend.h and it's source code ...
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Swap Serial pins of ESP8266?
I have designed and manufactured a PCB which contains an ESP8266 (ESP-WROOM-02D) chip with the serial uart pins connected to a 30pin connector. I made a mistake on the layout (first time designing a ...
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Error saving SPIFFS on ESP8266 - only after 3rd entry
EDIT1 - This phenomena occurs only after reboot using button or ESP.reboot()
I'll try to make my question more focused:
I have library that saved log events to SPIFFS.
From 3rd entry (in the ...
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Update the ESP to espduino via NodeMCU Flasher
I am using Cactus Micro Rev2 and I'm trying to communicate with ESP via Mega32U4. I guess I have to update to espduino to be able to program the ESP side.
And I don't know current ESP firmware version....
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NodeMCU ESP32 as a replacement for my arduino project
I would just like to ask if this microcontroller can power or can manage 2 servos, 2 motors, and 2 hc-sr04 ultrasonic distance sensor combined? Also, does this board come with a bluetooth module?
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Arduino Uno Esp8266 AT commands [closed]
I am trying to send AT commands to esp-01 through serial monitor I have uploaded a blank sketch to Arduino , whatever command I send to ESP I get reply ERROR.
After reconnecting esp-01 I got some ...
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How to send data from esp-01 Wi-Fi module to arduino
The L1 is the value i will get from firebase database, but now i wanna send the value that i receive in realtime database to arduino to on LED, how to solve? any suggestion? which mean when arduino ...
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Sending Data Between Arduino Nano and D1 Mini
I am sending data from Arduino Nano to D1 Mini,
Transmitter is Arduino Nano
Transmitter Code:
#include <DES.h>
#include <SoftwareSerial.h>
SoftwareSerial link(2, 3); // Rx, Tx
DES des;
...
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esp8266 analogRead of 5.5V soil moisture sensor input using voltage divider
On an ESP8266 I try to analogRead(A0) my soil moisture sensor using a voltage divider but I get unexpected low values.
The MT3608 increases the esp's output voltage from 3.3V to 5.5V which is the ...
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How to get the value of a measurement transmitted by a BLE device?
I would like to use a BLE temperature sensor (such as the Inkbird IBS-TH1 Mini BLE Sensor), however, I want to be able to display the temperature measurements in my own website. To do this I am ...
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ESP8266 AutoConnect ACSelect selection index
I'm trying to retrieve the current selected/saved index of my AutoConnectSelect Right now i'm creating a type that reads the saved json:
AutoConnectSelect& bright = settingsAux["...
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Why am I getting Invalid head of packet (0xF0) error when trying to upload code to esp8266?
Solved : In Mac I went back to Tools --> Boards Manager, then removed 3.0 and downgraded to 2.5 and it started working. I found the solution in this thread.
The current connection between uno R3 ...
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ESP8266-01 module "AT" command testing not responding
Firstly I have connected the Arduino UNo to Esp8266-01 Module and uploaded the Simple Blink Sketch using Arduino Uno and It responded correctly as in the Blue Led Light on Esp8266-01 was blinking ...
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ESP-01 OTA Error uploading
Im trying to do OTA upload from Arduino IDE.
Uploaded BasicOTA to ESP-01 with flash size set to (FS:2mb, OTA 1019kb).
ESP-01 connects and shows up in Port selection, but when trying to upload I get
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How esp8266 gets response from server..?
#include <SoftwareSerial.h>
const byte rxPin = 2;
const byte txPin = 3;
SoftwareSerial ESP8266 (rxPin, txPin);
void setup() {
Serial.begin(115200);
ESP8266.begin(115200);
delay(2000);...
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HTTPS GET request working on esp32 but not on esp8266
I'm trying to port my esp32 program to esp8266, and i've come across a problem where i can't get a response from a HTTPS GET request on esp8266, but on my esp32 the same code works fine.
The function ...
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How to send int array with ESP8266 http post request?
I'm reading RFID cards' UID with an ESP8266 and trying to send that information to my web server hosted on a Raspberry Pi. I'm currently storing the UID in an int array, but the http.POST(); function ...
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Can I add my Wi-Fi credentials to ESP module remotely?
I am working on Home automation project and I am stuck somewhere on connecting my smart switch board to internet through my home WIFI. Actually I want to connect my ESP module with my home Wi-Fi ...
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Why is this extremely simple code not working?
I have a problem with a for loop, and Serial.print("Its Working") does not appear. Seems simple, I've done it before, now for whatever reason, its not working anymore
void setup() {
// put ...
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ESP8266: Interfacing MAX485 TTL-to-RS485 on serial port
I am using the ESP8266 NODEMCU.
I am aware that the CH341 on the NodeMCU is bridged to the serial pins GPIO3(Rx) and GPIO1(Tx).
Hence, any data send on Rx and Tx is also visible on the serial monitor.
...
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ESP8266 ISO 8601 string to tm struct
I have a web service that returns timestamps in ISO 8601 format, e.g., "2021-06-25T12:00:00"
I'm trying to turn the timestamp string into a tm type struct from the ESP8266 library <time.h&...
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Arduino code not working properly (Please Help)
I am having some trouble getting my board to perform the function I want it to perform. This is a project I have due in a few days, and I have hit a wall I just can't seem to get past. Now, I will say ...
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