Arduino • Re: Dual I2C busses on Arduino IDE (Arduino Wire problem)
I have found two solutions, one hardware and one software. Both of these work for me.Hardware: Cut the traces to the SDA and SCL on one sensor and jumper it to the other bus. In my case I put the RTC...
View ArticleArduino • NodeMCU GPIO9 (pin S2) and GPIO10 (pin S3)
I'm using nodeMCU. There are these pin S2 and S3 that represent GPIO9 and GPIO10. I want to use these pin but it does not behave like the other GPIO pin. I need help to understand what is pin S2 and...
View ArticleArduino • Re: NodeMCU GPIO9 (pin S2) and GPIO10 (pin S3)
From information HERE it would seem that S2 & S3 are in the group of pins that are used by the board to interface with the 4MB external flash chip.Statistics: Posted by AcmeUK — Fri Dec 09, 2022...
View ArticleArduino • Re: Connect to WiFi gives code 6
The OP said "it gives" but we have to guess they probably meant WiFi.begin() was returning WL_WRONG_PASSWORD, and this highlights the importance of pasting error messages when looking for...
View ArticleArduino • Re: arduino source code of esp8266 default AT firmware
If you are just getting started, I would suggest familiarizing yourself with the example sketches you can find in the Arduino IDE menu File > Examples > Examples for <your board> ...The...
View ArticleArduino • Re: ESP8266 WiFi Credentials auto saved to flash (ESP8266WiF
fabianoriccardi wrote:What if I simply call WiFi.begin("myssid", "mypass", channel, bssid) at the begin of my sketch? Will these values be written on flash at every boot even if they do not...
View ArticleArduino • Re: ESP-01F and dc motor control
There are several resources online that provide code and instructions for controlling a DC motor with an ESP-01F module over WiFi using an Android phone. Here are a few options:Arduino forum: There is...
View ArticleArduino • esp8226 webserver reset on power restart
hi allim new to this site so bear with mei have a 8226 acting as a webserver displaying the temp and humidity readings from dht11 moduleits located in an outbuilding and if it has a power down i have...
View ArticleArduino • Re: esp8226 webserver reset on power restart
You will have to give more details to get a decent answer; board type, powering arrangements, software used.Normally, powering up a esp8266 should be the same as performing a reset but if the voltage...
View ArticleArduino • WiFiClient::connect() triggers Watchdog timer exception
Hello,I am new to this forum and I am currently struggling with an issue regarding my ESP8266 software project. I am not sure if this is due to me misusing the Arduino libraries or an actual bug in...
View ArticleArduino • Esp8266 sms twilio example not compiling
Hello:I created an twilio account to send sms with ESP8266. I got this example from the web, but I didn't compile:Code: /* * Twilio SMS and MMS on ESP8266 Example. */#include...
View ArticleArduino • Re: Esp8266 sms twilio example not compiling
Here is a different example to try Send an SMS Using an ESP8266Statistics: Posted by AcmeUK — Wed Feb 22, 2023 11:33 am
View ArticleArduino • Serial monitor prints what is not in the code
Hi everyone. I have a general question about ESP8266.I use serial.print() in different lines of code for debugging. Recently i finished debugging, removed those serial.print()s and programmed my MCU...
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Arduino • Re: Serial monitor prints what is not in the code
Messages, at 74880 Baud, like this by any chance?Code: ets Jan 8 2014,rst cause 1, boot mode:(3,7)load 0x40100000, len 24236, room 16tail 12chksum 0xb7ho 0 tail 12 room 4load 0x3ffe8000, len 3008,...
View ArticleArduino • WIFIclient, ArduinJSON and hardware serial stall
Hi,I have Arduino UNO as a sensor base that collects data and sends them in JSON files over serial communication to ESP8266 NodeMCU (a spinoff called HW-628 V1.1). NodeMCU shows it on display and...
View ArticleArduino • Constructor problem with class
Hi,I have a problem with a class constructorThis is the header part Code: #include <ESP8266WiFi.h>#include <WiFiServer.h>#include <WiFiClient.h>class stdio_handler {public:enum...
View ArticleArduino • Re: Constructor problem with class
You can try the following.Code: stdio_handler::stdio_handler() : TCPserver(8888) { // Other constructor code...}stdio_handler::stdio_handler(uint16_t port) : TCPserver(port) { // Other constructor...
View ArticleArduino • Re: WIFIclient, ArduinJSON and hardware serial stall
It seems that your data transmission is working fine, and the JSON received on the NodeMCU is also being deserialized correctly.The most likely issue is that the data struct is not being populated...
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