Questions tagged [shields]

Shields are attachments that "snap" onto the Arduino board adding functionality. They are usually the same shape as an Uno/Leonardo/Duemilanove. Some examples are: the Ethernet (includes SD port) shield, motor shields, and sensor shields.

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Arduino Mega Shield Library for Eagle CAD

I'm a noob to PCB designing and electronic stuff. I want to design a pcb shield which is compatible with an Arduino mega 2560. I'm using Eagle CAD. I checked the sparkfun library but I couldn't find a ...
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201 views

Yun UBoot Prompt Not Showing

I have a Geeetech Iduino Yun Shield. I accidentally flashed the wrong firmware image (not the sysupgrade) to the board. I then tried using the Yun UBoot Reflash method. However, when I open the ...
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Arduino Mega vs servo shield

I am currently designing a hexapod with a total of 18 servos. I come from a computer science background and know little about electronics, so there is one thing which puzzles me. Adafruit is selling ...
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179 views

Arduino MotorShield code running but not motors

I have a motor shield V2 on my Arduino, i compile the codes just fine and i'm trying to just run the example dc motor test. The code compiles the serial is printing out the "tick tock ...." but the ...
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570 views

Arduino Mega + XBee Shield + RAMPS 1.4 Is it possible?

Is it possible to sandwich an XBee shield between Arduino Mega and Ramps 1.4 without damaging any of the boards or lose of Ramps functionality ? I am not trying to make a 3D printer it is rather a ...
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Yún vs Uno with Yún Shield [closed]

What are the differences between an Arduino Yún and a Arduino Uno with an added Yún Shield? And is there a way to expand the storage of the Yún / Yún Shield?
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215 views

Advanced Arduino Project Help

So, I am an Engineer working on a very time tight project. I want to create a system capable of collecting data from a Photodiode and compiling it in a way that will separate data into four columns ...
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1answer
490 views

Recording and storing Midi data with arduino and midi shield

i need help getting started on writing a sketch that would let me record and store midi data from a midi controller connected to a arduino mega through a midi shield. are there any functions in the ...
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934 views

what pins are attached to ethernet shield SD card?

I have ARDUINO ETH SHIELD 06 - Rev 03. https://www.adafruit.com/product/201 what pins are attached to Ethernet shield SD card?
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What are the unused pins in an Arduino L293D motor shield?

What are the unused pins in an Arduino L293D motor shield? I want to connect the shield using wires instead of directly mounting on top of the Arduino board.
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How to combine 3.4ghz intel processor with arduino board [closed]

Im totally new to arduino but have some programming experience. I have an idea that i would like to realize but it requires way better hardware than what a standard arduino board offers. I would like ...
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1answer
128 views

Trying to make a wattmeter

I've been trying to make a wattmeter using arduino but cannot find the shield I need to buy to put onto my arduino to make it. There are no such parts in the Arduino Store and online the best I could ...
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461 views

How to play Midi from the Sparkfun Mp3 Player Shield?

in the video: https://www.youtube.com/watch?v=zc1zbwheyE0 I suspect they may be using the midi playback functionality of the chip (VS1053b) on the Mp3 shield. how do you playback Midi from the mp3 ...
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Error while updating ThingSpeak using SIM808

im trying to update ThingSpeak from a SIM808 but I'm getting a network error. Please check below and let me know if there is anything wrong in my methodology. I'm using terminal.exe to send commands ...
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1answer
2k views

Arduino UNO WiFi "wifi shield not present"

I currently use the Arduino UNO WiFi, but when I try to use the WifiChatServer example, I keep getting the same error: wifi shield not present. What am I doing wrong?
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How do I free up space on arduino Yun shield?

I recently bought arduino Yun shield, and I didnt had any external USB storage connected, I downloaded get-pip.py on Yun using wget and ran python get-pip.py which resulted in 5mb storage on yun now ...
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98 views

Change conditioning in real time

I am currently writing a program that reads an output voltage from a capacitive moisture sensor and depending on the moisture content, it will water some plants accordingly. I would like to make it so ...
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57 views

What controller should i use?

I'm working on a little DIY project in which I intend to make my own dataglove. Now I'm kinda stuck on choosing the right microcontroller. And since it can be quite costly, I thought to ask for some ...
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2answers
105 views

Do (cheap) SD modules support file I/O?

I noticed there are cheap SD modules and complete SD shields. I assume the last are used for a 'final' product and not for bread-boarding (?) However, I was wondering, is there also a difference in ...
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SIM808 module restarting repeatedly

I have bought SIM808 module, everything working fine. All AT commands are giving expected response, i'm accessing it through hyperterminal. My problem is that whenever i make or receive a call or SMS ,...
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156 views

Accelerometer (I2C) and Fona Shield (software serial) won't work together

I am using a Fona 808 shield with an Arduino Uno and the LSM303 accelerometer. The accelerometer is connected via I2C and the Fona uses software serial. My project requires the accelerometer to be ...
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1answer
190 views

USB DEVICES WITH THE 32U4?

I have an Arduino Pro micro and I need to know if it is possible to use an USB device like a camera or things like that Since the processor is a 32U4. the USB Shield is for the Arduino Uno and I don't ...
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293 views

GSM serial get event or read the whole input?

I am using an Arduino Uno with GSM shield, trying to read some SMS. Here is my code. #include <SoftwareSerial.h> SoftwareSerial SIM900(7, 8); char incoming_char=0; void setup() { Serial....
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234 views

Arduino for push notifications to phone

I'm interested in using an Arduino for a project for taking information and sending it through a phone application. I was wondering what the cheapest option there is for an arduino with internet ...
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1answer
396 views

How to connect to pins when using I2C LCD shield?

How are pins used with this shield? The tutorial says that the header pins are inserted into the Arduino but the guide says they are not used for signals. Is there any way of using the other pins? ...
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1answer
782 views

Arduino Uno Wunderground weather station - Ethernet connection failed

I'm new to Arduino. For my first project, I've decided to build a weather station where data is collected via sensors and is then sent to Wunderground. I'm using an arduino uno, an ethernet shield as ...
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1answer
677 views

Ethernet Shield 2 data to PHP server doesn't work

I am trying to send data via GET to my PHP server from my Ethernet Shield2. This is part of my sketch: char myserver[] = "www.myserver.com/"; if (client.connect(myserver, 80)) { Serial.print("...
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5k views

Following on ESP8266 Board pins, how do they map on the motor shield?

Here is the answer: All pins corresponding to the G row are connected to ground. All Pins corresponding to the V row are connected to NodeMCU's 3V3 pin. D row pins tagged from 0 to 8 correspond to ...
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1answer
129 views

Is it possible to have an Adafruit music maker shield and a sensor connected to the same Arduino?

Are the analog I/O pins on the Arduino still available for sensors when there is an Adafruit Music Maker shield attached to it? I want to play a sound file, but only when a PIR sensor senses motion.
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24 views

Can't power mg2639 cellular shield with battery

I have a SparkFun MG2639 cellular shield attached to an Arduino Uno R3. I have had both the cell modem and the GPS unit working when the shield is powered from the Uno. I followed the instructions ...
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389 views

Adapt Dynamixel library to different shields

I have been playing around with this shield for a couple of days now and I have to agree with some statements made in the comments that the "library" lacks many functions. However I have discovered ...
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2answers
9k views

Arduino Ethernet Shield on Arduino Mega Pin Usage!

I currently have an Arduino Ethernet Shield which is Mega Compatible. I've found on the Arduino Ethernet Library https://www.arduino.cc/en/Reference/Ethernet that the Shield uses different Pins on the ...
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4k views

Couldn't connect to local server using Ethernet Shield and Arduino Mega 2560

I'm trying to connect the arduino mega and ethernet shield and try to send some data to a php script. I have connect the ethernet shield to the laptop. Lap is connected to router through wi-fi. Any ...
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1answer
3k views

Why doesn't the Ethernet W5100 shield work on Gigabit switch?

I have an Arduino Uno with an Ethernet Shield based on the Wiznet W5100 chipset : It worked like a charm until I had to move it to another location and plugged it to a Gigabit switch. I had no link, ...
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87 views

HTTP request not sending [closed]

so I have a wifi shield and I am sending a web request, but its not going through. I know it's not the server because the other function of the program works properly. My code is available on pastebin ...
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4answers
227 views

What is this shield? (AST Space Arduino Kit)

I recently got a box with Arduino components from someone who didn't want it (in part, because the manual was (probably) in Chinese). However, to my surprise, I could not find this kit on the internet....
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508 views

SPI conflict with two shields - IOREF?

Update: I've refactored the code to be very resilient to boards missing or not being able to talk to them. Then I tinkered with a bunch of pins and learned that it all comes down to the IOREF pin ...
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1answer
3k views

How to make auto keyboard using arduino nano V3.0 ATmega 328P ?

I have an Arduino Nano v3.0 ATmega328p board. I want to make an auto keyboard that types in a string when its plugged in. I have googled and found that these chips doesn't support that feature unlike "...
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2answers
3k views

Arduino USB Host Shield with joystick

I'm building my own quadcopter and going to use an Arduino for this. An Arduino Micro for the quadcopter and an Arduino UNO for the controller. I want to use an USB host shield with a Logitech Extreme ...
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0answers
212 views

Web Page doesn't load when data is being received from Xbee

I have an Arduino Mega I am using as a simple web server. Right now the web page is two simple lines of text. There is an XBee radio attached to the unit to receive data from another unit. However, ...
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3answers
285 views

Can a motherboard be a simple circuit between arduino uno and a set of devices (ie: motors)

Reason for question: My son is working on a project to build a robot controlled by an arduino uno. This question is more about terminology than process, but since terms are very important at this ...
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0answers
57 views

I want to modify setup, to also keep the serial USB port opens so I can send strings via a Raspberry Pi

I am trying to modify the original code from these guys GRA & AFCH, who have made an Arduino Sketch Program that runs a Arduino powered Nixie Clock. Here is the link to their Firmware file:...
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1answer
361 views

Problem with connecting pins on an Arduino board with an L239D shield

I have an L239D motor shield just like the Adafruit motor shield. I had a question in my mind. While making a robot, I could not connect my pins from various sensors in Arduino as the motor shield is ...
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1answer
1k views

How to connect GPS Neo-6M module to GSM Shield SIM900 V2?

I'm doing my final year project, My project is based on "Arduino Real Time Gprs/Gsm & GPS Tracker". So Now I have purchased the hardware components such as: Arduino UNO R3 GSM Shield ...
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1answer
865 views

how to measure level shock using vibration sensor and arduino

My project title is about crash detection, by using this kind of vibration sensor. When the sensor reads the shock (which is when I knock the sensor) more than 50, it assumes it's a crash and will ...
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1answer
400 views

Getting an error while uploading a code to the Arduino when ethernet shield is attached

I bought ethernet Shield today and connected it to Arduino Uno, now when I try to upldoad I get the following error, however if I remove the shield from the UNO it works fine. Sketch uses 10,486 ...
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0answers
84 views

Maplin Bluetooth Shield for Arduino - BAUD rate

I am currently using a Bluetooth shield which i bought from maplin, see: http://www.maplin.co.uk/p/bluetooth-shield-for-arduino-n97dg. I have got it to work perfectly on the default 38400 BAUD , but ...
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1answer
430 views

Sim800L's library can not compile on Arduino Due

Sim800L's library can not compile on Arduino Due. Is there any way to create a library for Arduino Due? #include <Sim800l.h> #include <SoftwareSerial.h> Sim800l Sim800l; char* text; char*...
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1answer
65 views

Arduino shield bluetooth

I have this arduino motor shield, and I want to connect a Bluetooth module, but don't know how (the tx and rx pins are used by the plate). Tried to sold it but now I don't have the tin to do it. So I ...
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2answers
4k views

W5100 Ethernet Shield to Custom Board Problem

I've been using an Arduino Ethernet shield and an Arduino Mega in my project, but now I'm trying to migrate all the components onto my own PCB. My board uses a W5100 same as the Arduino, but nothing ...

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