I am using the example code of readMifare This is my code ` #include <Wire.h> #include <SPI.h> #include <Adafruit_PN532.h> // If using the b
I have a ESP32 and I need to work with more serial ports, but I can't be using the Software Serial Library into ESP32, because the Arduino IDE don't recognize t
I'm setting up a TCP/IP communication between an android app and an ESP8266 module connected to Arduino uno. I'm using AT commands to set up the server as follo
I am a big noob at C++ and arduino, but that doesn't stop me from attempting cool projects. I have an arduino mega 2560 v3. I am tying to make a simple rfid sca
Before I get started I want to make it clear I am still a beginner in both C++ and Arduino electronics, so the answer may be painfully obvious to someone with e
I'm desperately looking for a solution for my SIM800l v2. The network LED just keeps blinking every second. It does not restart but it keeps blinking and not pi
For some time I wanted to have an Arduino controlled light switcher for outdoors and few weeks ago I created it, but I have problems with it. I needed to have a
I have started learning to build some good websites. In one of my projects, I wanted to display two voltages (named "POTvalue1" & "POTvalue2") on a website.
I am making a code for an automatic watering system for my plants using pyFirmata on Arduino but I always get this error when I try to run it Traceback (most re
I am using arduino HTTPClient to do the post request in ESP32. Can anyone help me with the part where I will be able to post an image file along with some data.
Unable to connect NodeMCU with Firebase as console shows setting /number failed: each time No updation on firebase as well. or should I change the cloud se
I currently have firmware that can reach an average deep sleep current of ~130uA. I can reach this level reproducibly on one of the boards I have. successful de
(excuse my english) Hi. I'm a beginner at coding who started trying things in Arduino and c++ (because of Arduino). Recently I just learned that you could write
I Just bought the SIM808 GSM/GPRS/GPS shield with an arduino Mega 2560. I have written a simple sketch shown below which I'm using to execute AT commands on my
I've been working on a HTML / websocket server on a Wiznet W5100S-EVB-Pico, programmed in the Arduino IDE. It all worked fine up until now but I'm running into,
I have a Weather Meter, and I am able to read data from it. My problem occurs, when I try to use the library UnoWiFiDevEd.h send the data to store the informat
I have a Weather Meter, and I am able to read data from it. My problem occurs, when I try to use the library UnoWiFiDevEd.h send the data to store the informat
I've seen other posts with the same error message, but couldn't find any solution that works for me. I'm using windows 10. I've done all the required steps, but
i am using two arduino mcu to connect two lines of LED-matrix display. I tried using i2c communication to connect a master mcu (which controls the first line of
I am trying to send AT commands to ESP8266 to get connected with internet with the Wifi. When I am sending AT and AT+RST command on serial monitor then I am ge