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.
0
votes
1answer
4 views
pH ORP sensor esp12 esp82666
I need to know if there is a sensor that mesure pH and ORP, I have already googled about this type of sensor but i found only AtlasScientific that commercialise this kind of sensor
thanks
0
votes
2answers
27 views
ESP 8266 does not respond for any
I have ESP 8266 Wifi module and Arduino mega Board connected. I use external 5 to 3.3v regulator to power up the module.and mu common (-ve) line on the external power source and Arduino mega GND is ...
1
vote
1answer
19 views
Parse HTTP Request Arduino
I am sending a HTTP Request to my WiFi module http://192.168.4.1/STA/ID=HelloWorld/Pass=Testin123
How can I parse above string in Arduino. First I need to check for STA, if it exists, continue to ...
1
vote
0answers
17 views
ESP8266 stuck in flash mode?
I have the setup described here: https://learn.adafruit.com/esp8266-temperature-slash-humidity-webserver/wiring
I currently have the reset pin set to float and the GPIO0 pin grounded, which should ...
0
votes
0answers
31 views
Serial commands to web browser
I am using this Wifi Shield for arduino.
Using this, there is a possibilty to connect the arduino to a local router in STA mode, and make it as a TCP web server with it's own IP address and PORT ...
0
votes
0answers
20 views
esp8266 (esp-01) - GPIO while deepSleep
I am currently trying to build a small notifier for my mailbox with an esp8266. The basic idea is to switch on a LED, check if mail is in the mailbox (using a photo sensor), then fire up WiFi, post a ...
-1
votes
2answers
37 views
Sending a text/notification with Arduino + ESP8266 Wifi shield
Is it possible to send a text message using an Arduino and the Sparkfun ESP8266 Wifi Shield using Temboo? I noticed that the ESP8266 might not be supported by Temboo and I was wondering if there is a ...
0
votes
1answer
21 views
Size of String array
I am trying to find out the size of an array like this:
String days[3] = { "Mon", "Tue", "Wed" };
Serial.printf("Size of array: %2d\n", sizeof(days));
for (int i = 0; i < sizeof(days); i++) {
...
1
vote
1answer
16 views
Server checkbox not working properly
I am trying to make an arduino alarm clock to which you can send alarm clock times over the web.
This is the HTML code
<input type="checkbox" name="alarm1" id="alarm1">1</button>
It's ...
0
votes
0answers
42 views
How to do “Http File Upload to webserver” using ESP8266 under Arduino
I need help from you experts regarding uploading file to webserver from ESP8266 under Arduino IDE. I tried searching all over the net but no lead found. Appreciate any help in pointing me in right ...
0
votes
2answers
35 views
OTA Update Esp8266 without IDE
I was wondering if its possible to program the esp8266 to receive firmware updates without the use of an IDE to program.
Use Case:
This device should be setup to the WiFi network scan an IP for a ...
0
votes
2answers
57 views
How to connect ESP8266 12e directly to Arduino Uno (without shields)
I have an ESP8266 12E module and I'm trying to connect it to arduino, without any shields or whatsoever. I've looked everywhere but all I can find is about ESP-01 or with a NodeMCU. I'd like to do the ...
0
votes
0answers
29 views
ESP01 (esp8266) controlling relay problem
I am trying to control relay (SRD-03VDC-SL-C) with ESP-01 module. For this I am using relay and not whole board with relay. ESP's GPIO2 (tried also with GPIO0) output is connected through 1kOhm ...
0
votes
1answer
44 views
ESP8266 - AT Command for Network Requiring Username AND Password
I have been using my ESP8266 module with my Arduino on my university's Wi-Fi network, which only requires a password to log on to.
The university will soon terminate that Wi-Fi network and replace it ...
0
votes
1answer
53 views
WDT & Software RESET in ESP8266 + Arduino IDE
I am working on ESP8266 in Arduino IDE. I want to know how to Software RESET the ESP8266. Any sketch/example would be useful. Moreover, how to initialise WDT in ESP8266.
Kindly help!
0
votes
0answers
20 views
HMC5883L - angle 0 to 90 only - NODEMCU ESP12E
Got this cheap chip and connected to SDL SCA on NodeMCU ESP12E
Using the example sketch:
HMC5883L_Example.pde - Example sketch for integration with an HMC5883L
triple axis magnetomerwe.
The ...
0
votes
1answer
44 views
Problems with Powering Led Project Through Vin Pin
I am working on lighting some WS2812 Leds with a nodemcu form hiLetgo. The project works when it is powered from the usb that is on the board, but as soon as it is powered from the barrel jack, the ...
0
votes
0answers
17 views
How to check 8266 module
I am using Arduino board with 8266 to connect with a WiFi device but how to check whether the device is connected
1
vote
0answers
32 views
ESP8266 only responds to AT and AT+GMR
I purchased a pack of esp8266 (https://www.amazon.com/gp/product/B00PA3UQNI/) and a usb to serial converter (https://www.amazon.com/gp/product/B01FUA2BBU/) from amazon. I hooked them up and attempted ...
2
votes
1answer
87 views
Serving binary file with ESP8266WebServer
I am currently using a Nodemcu ESP8266-12E with the Arduino IDE in order to control my boiler. Everything is working fine, however I haven't figured out yet how to serve binary files, eg. images. (I ...
0
votes
1answer
48 views
Which Protocol to use to control WiFi (ESP8266) enabled Led Light
I am developing a Wifi based Led light (Got Inspired from Philips hue, Lifx). I have little knowledge about web server, clients, Web protocols. I will be using ESP8266 as Controller cum WiFi module.
...
1
vote
2answers
47 views
ESP 01 - reset settings to default values
I set up communication between Arduino UNO and ESP 01 module. ESP replied to AT commands, but sometimes I got result from ESP uncompleted or with wrong characters, so I tried to set AT+IPR=9600, I ...
0
votes
0answers
34 views
Flashing ESP8266 ESP-12-q with arduino
I got an ESP-12Q ESP8255 module and I am trying to upload Arduino firmware on it. But I can't even get any response from the module at all. No LEDs anywhere are on, I don't even know if the thing is ...
0
votes
1answer
74 views
ESP8266 Web Server Crash + Arduino IDE
I am working on HTTP GET Request. I have created ESP wifi as web server. It creates a access point with IP address : 192.168.4.1
When my android app is connected to web server, it sends values every ...
0
votes
1answer
28 views
Arduino UNO and ESP01 cant issue AT command
I would like to connect Arduino UNO and ESP 01 module. I use Arduino IDE and I tried to test comunication via serial monitor, I get "ready" message from ESP 01, but I am not able to issue AT command ...
0
votes
0answers
108 views
sending arduino data to mysql using phpmyadmin and xampp using windows10
I want to send my arduino sensor data to mysql databse using XAMPP and PHPmyadmin. I have been using esp8266 for the wifi connection. But i am unable to send the value. And in actually i have to send ...
0
votes
0answers
52 views
How to Read and Write EEPROM in ESP8266 + ARDUINO IDE
I need to know how can I write the integer value in EEPROM and retain the value on Power ON.?
char *Red = strstr(myTestUrl, "/R");
if (Red)
{
int RedValue = atoi(Red + 2);
analogWrite(...
0
votes
2answers
49 views
rs485 and serial ISP
I made a couple of arduino mini pro and esp8266 pcbs with an rs485 transceiver just to find out that I forgot to think about in-system-programming:
Assuming that I don't need to disable the ...
0
votes
1answer
75 views
Unable to Communicate Between ESP-12E Module and Mobile Through ESP-12E Router
I am newbie in Arduino, I trying to send data from Esp-12E client module to mobile over an IP via ESP router module (I am using Arduino IDE for programming Esp-12E).
For this purpose I successfully ...
0
votes
0answers
31 views
Arduino, MQTT communication , ESP8266
I want to establish mqtt communication using mosca broker.
I am very new to all this stuff, so I need your help. I have saved and uploaded the code in my arduino and when i open my serial monitor it ...
0
votes
1answer
44 views
How do I reset an ESP8266 with an FTDI and no reset button?
How do I reset an ESP8266 with an FTDI and no reset button? I assume that it has something to do with the reset pin on the ESP8266, but I cannot find a step-by-step usage of the pin online.
1
vote
1answer
38 views
Problems returning char array from function, value gets messed up
I use the Base64 library for Arduino (but I don't think the problem is related to the library) and have the following function definition:
char* decodeImage(char inputString[], unsigned int ...
0
votes
1answer
37 views
Posting to EEPROM via HTML - ESP8266 Arduino IDE
For those of you familiar with my somewhat steep EEPROM learning curve...thank you for continuing to share your knowledge. I see how it's supposed to work and it's falling into place.
I've run into ...
0
votes
0answers
21 views
NodeMCU - Star Configuration Broadcasting
I'm trying to have a central NodeMCU device that broadcast data out to multiple NodeMCUs so basically a star configuration. I'm aiming to have each NodeMCU receive the data on their end and display ...
0
votes
1answer
23 views
WiFi thermometers: save different location string as const across many devices
I've built a very simple WiFi thermometer out of an Adafruit ESP8266 HUZZAH breakout board and a TMP36 temperature sensor. I have it reporting the temperature over wifi to my computer which will be ...
0
votes
0answers
84 views
Parsing GET function + ESP8266 + ARDUINO IDE
I am working on a ESP and making it a simple Http web server. I have successfully ON/OFF the led using the browser. I need to use PWM, instead of Switching the led. As of now When I hit http://192.168....
0
votes
1answer
48 views
MPU9250 - Calibration Not Saved with RTIMULib EEPROM Issues
I'm using the MPU9250 and the RTIMULib to perform sensor fusion, however, when I run ArduinoMagCal, and save the calibration, and follow that with running the main ArduinoIMU it claims the calibration ...
1
vote
2answers
55 views
Average response time of Esp8266 module
I'm planning a project where I'd like to control an RC car with Arduino and an Esp8266 module.
A software running on a computer would read the input from an USB analog controller and send the data ...
0
votes
0answers
28 views
ESP12F, Arduino IDE vs LUA vs Native SDK [duplicate]
Which one is the most efficient?
Is there any downside of using arduino ide instead of NodeMCU with lua script or Native SDK?
Pro's and Con's of each.
0
votes
0answers
57 views
Trouble with ESP8266 and DHT11
I'm using a setup described in this adafruit article for a humidity/temperature sensor-to-database module, and I'm consistently getting the same error messages:
trying to connect
flush start
setting ...
0
votes
1answer
32 views
Determine Object Heading
Is there a sensor I could use which would let me know which direction an object is heading/facing? i.e. I have a servo that can rotate 0 to 180 degrees, and I have another sensor on a block. When I ...
1
vote
1answer
35 views
Control many devices via Wifi
I have one Arduino and I want to control a Servo motor and other devices. The Servo motor is further away from the Arduino so I want to control it wirelessly. The problem is that I want the Servo to ...
0
votes
1answer
158 views
ESP8266 to ESP8266 communication using arduino ide
I am trying to achieve communication between esp to esp,i,e one acts as a serer and other acts as a client, where i am passing the string from server serial monitor to client. but client is not ...
0
votes
2answers
49 views
Basic Question - ESP8266 Board Pins
I have an embarrassingly simple question.
My experience to date has been limited to Arduino Uno + Wifi101. I bought an ESP8266 and noticed that the GPIO pins don't match the printed numbers on the ...
1
vote
2answers
56 views
ESP8266 - Error: unknown opcode or format name 'jmp'
I bought a nodeMCU 8266 and I'm hoping that it can replace my bulkier UNO+WiFi 101.
I'm getting an error when I compile:
Error: unknown opcode or format name 'jmp'
I'm using it in void SoftReset() ...
0
votes
1answer
209 views
Arduino Uno - ESP 8266: sending AT commands via Code
I bought a ESP 8266 & I am able to send AT commands and receive response via serial monitor when I upload a empty sketch. I changed the baud rate from 115200 to 9600 by using AT+CIOBAUD=9600 and ...
0
votes
2answers
180 views
Problem Flashing Esp8266,
I am trying to flash the AT firmware in esp8266 but i am always getting the error of timed out waiting for packet header.
Note : I am using esptool.py to flash the the chip and i already have some ...
1
vote
0answers
78 views
How to reset the nodeMCU module
I've flashed AT firmware onto my nodeMCU development board and when I reconnect it, the built in LED gets switched on and the module continuously sends some garbage data to the serial monitor. So how ...
0
votes
1answer
350 views
How to connect WIFI sheild ESP-12E-ESP8266-UART-WIFI-Wireless-Shield with arduino
Hi all I have bought this shield from ebay and now I don't know how to use it,
http://www.ebay.in/itm/ESP-12E-ESP8266-UART-WIFI-Wireless-Shield-for-Arduino-UNO-R3-Bouclier-Sans-filfr-/152048233906?
...
2
votes
4answers
164 views
Can ESP8266 replace Arduino?
I’m a hobbyist and have used Arduino so far for simple projects. Now I want to build a project involving addressable LEDs, I want to write several programs on the Arduino for the LEDs and on my phone ...
