Having trouble installing board
Using Arduino 2.2.1 and having trouble installing Esp8266 Went to preferences and http://arduino.esp8266.com/stable/package_esp8266com_index.json2F board. hit enter and then went to ide ,not able to...
View ArticleAdd comma in string
hi.. sorry for my english.. i have project with read serial from arduino example : the incoming data string 12345678, and i want the data to be 123456,78. so how i can add comma at string in 2 last...
View ArticleHow to slow down the IC2 on DUE?
I am using a IMU the GY521 on my DUE , Wire1 port. When I boot, the IMU shows up about 70% of the time, the rest I get ("\tCould not connect to GY521"); Did some research and I installed 2 pull-up...
View ArticleUsing data from inside an array
Hello, I'm helping my son with a project, and got stuck trying to use an Adafruit IR camera. We gor the camera is AMG88xx GridEYE 8x8 IR camera runing fine, but we want to know if there is a value...
View ArticleESP8266 Async HTTP Request
Hey everyone! I'm trying to implement a weather display into a 7 segment mechanical clock that I've made, I've been able to implement the API request using the regular WiFiClient built into the...
View ArticleWhy wont this code work?
I want to separate a hexadecimal value into 3 bytes but the code is outputting Original Hex Value: 0x5EEF Decimal Values: {0, 94, 239} The byte I'm using to test is 0xbb5eef I don't see a flaw in the...
View ArticlePID controller with Feedback?
I am working on a project and would like to change my current feedback to use PID. Right now the PWM duty cycle of pin 3 is increased or decreased based on the output of a current sensor. There is a...
View ArticleArduino and Race Coordinator(HELP NEEDED)
Hello I know hardware and struggle with code. Can someone PLEASE help !!! Here's the changes I made. (top line is what I changed) ''' #define SETUP_LED_1(cgrb, 8) FastLED.addLeds<NEOPIXEL,...
View ArticleHow to get started
Hi everyone, I have been suggested this website after I asked someone for help to start programming and making robots. I was wondering if anyone here could help me get started or point me in the right...
View ArticleConflicting Declration Error in Using A Lib Twice
hello, my friends. We are trying to assemble a quality monitor, we have assembled the boarâ‚« itself using mq131, mq135, and dht11, but since it's my first day using Arduino, I can't really code well...
View ArticleProgramming a Torque Transducer
Hello, I am trying to make a Torque Transducer signal communicate with an analog switch. I am completely new to Arduino so I know nothing, effectively. I have a Futek TDF400 Transducer for use in an...
View ArticleOpta Wifi Nicla Sense Me over BLE?
Has anybody been able to succesfully connect Nicla Sense ME over BLE to Opta Wifi? I am having difficulties achieve a successful connection between them and would appreciate any help/pointers to...
View Article7-segment display problems
Why doesn't this work? Shouldn't the display constatly switch between zero and one? It displays zero and does nothing else. Newbie here. // C++ code // void loop() { digitalWrite(a,HIGH);...
View ArticleK40 laser cutting platform control
Hello Everyone I modified my K40 with a stepper motor to raise and lower the cutting platform using a rep rap driver board about 5 years ago since then I used the board for other projects. Now I would...
View ArticleSending data from 1 esp8266 to another esp8266
hello everyone, i am new to esp8266's and trying to make a project using esp8266 this is just initial part of it, having two espA and espB, transmitter and receiver. the espA send continuous data to...
View ArticleArduino IDE and header files Getting Multiple Definitions
I am trying to compile a sketch with a main.ino and several .cpp files. I clearly don't understand the rules. I have this header file mqtt.h with guards that is included in main.ino because it has two...
View ArticleUltrasonic Ranging Module and 4-digit LCD odd behavior
Hi, I've completed a range sensor project, and have noticed an odd behavior I can't fix. When the sensor is active and taking readings, the farther things are from it, the more volatile the 4-digit...
View ArticleHttp request, certs.h
Hello i use some esp8266 with some sensors. most of them use http request to send datas. for the http request i need to include a certificat. i found a certs.h in github and use this. works great!!!...
View ArticleHiletgo L293D Motor shield program not compiling
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View ArticleHiletgo L293D Motor shield program not compiling
Hello. I am using an Arduino UNO R4 WIFI and a HiLetgo L293D motor shield whenever i try to upload a program with the AFMotor.h Library it gives me this error code: 'DC_MOTOR_PWM_RATE' was not...
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