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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Interfacing Logitech Joystick to Arduino and interrupt a while loop

I am working on a project of a robot arm. The joints are made of servo motor. The basic function can be describe as: The robot arm (the servos) were moved manually by the Logitech joystick. The user ...
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0answers
328 views

Is Arduino WiFi101 library fully compatible with Arduino MKR1000 with WiFi HW?

Will all the classes in this library work with the MKR1000 with wifi hardware? The guide mentions "wifi shield". So, does the library work exactly the same with the Arduino MKR100 (with the onboard ...
3
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0answers
1k views

Using Johnny-five API with RFID Controller Shield

Is it possible to use the Adafruit PN532 NFC/RFID Controller Shield with the Johnny Five API? I've searched the depths of google and I'm unable to find anything so far. If it is possible, how can I go ...
3
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0answers
6k views

Sending AT commands to a gprs shield using serial port

I have a GPRS shield connected to an arduino uno board, i want to use the shield to send sms and do phone calls, from a C# Wpf application, the arduino is connected to the application using the serial ...
3
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0answers
1k views

(Arduino + official GSM shield + ultrasonic HC-SR04 sensor) inaccurate measuring

I'm using an Arduino Uno, 1.0.5 r2 version of the IDE with and ultrasonic HC-SR04 sensor for measuring a tank water level. I want to send the data obtained over internet using the official arduino GSM ...
3
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0answers
381 views

How can I open simultaneously 2 client socket connections with GSM shield?

How can I open simultaneously two socket connections with a GSM shield? It seems that when I try to open the second connection, it is not opened, and additionally the first connection is closed. ...
2
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0answers
92 views

Problems with Arduino Uno Usb 2.0 shield when using a keyboard

I have an Arduino Uno and a usb 2.0 shield in which I connected a keyboard to. I have all the necessary libraries installed but what I am trying to figure out is how to light an led when I press a ...
2
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0answers
212 views

Sparkfun Spectrum Analyzer: Problems with frequency bands

I bought around 2 years ago the Spectrum Analyzer Shield from Sparkfun, but I never had the time to do something with it. Recently I found the time to start a project to build a graphical equalizer. ...
2
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0answers
180 views

No Socket Available message floods serial monitor

Serial Monitor get's flooded with "No Socket Available" message. This seems to occur even before I Try to communicate with my Hue bridge through my hub port. Does anyone see why this is occurring ...
2
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0answers
80 views

Connecting Arduino Wifi shield to Arduino Uno based Mcore board

I am trying to connect this mBot board to an external network, that's why I bought the arduino wifi shield. I am connecting the wifi shield to the 6pins (5V MOSI GND RST SCK MISO) of the mCore. ...
2
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0answers
105 views

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 ...
2
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0answers
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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0answers
208 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, ...
2
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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:...
2
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0answers
83 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 ...
2
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0answers
501 views

How to attach Arduino MKR1000 to a shield meant for Arduino UNO?

I have an Arduino MKR1000 and need to interface it to an Adafruit Music Maker shield, which has pinouts for an Arduino UNO. Maybe I'll have to attach female headers, and then jumper pins over. Which ...
2
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0answers
135 views

Using VMA-02 / KA-02 Sound Shield to get line-in input on arduino

I bought this VMA-02 audio shield: http://www.velleman.co.uk/contents/en-uk/p623_vma02.html I want it to get the data from line-in to line-out but with reading it in my arduino scetch first (e.g. ...
2
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0answers
82 views

XBee WiFi: Does it work on the Wireless Proto Shield?

I have been following this tutorial by sparkfun https://learn.sparkfun.com/tutorials/internet-datalogging-with-arduino-and-xbee-wifi and I have XBee Wifi but not the Shield of SparkFun. I have the ...
2
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0answers
39 views

Arduino Bluetooth Shield

A friend of mine bought two of these Bluetooth shields here. I have been trying to get the two Arduinos connected to each other through Bluetooth. I could not get it working myself but I found some ...
2
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0answers
351 views

Send data from computer to phone through bluetooth - Bluetooth SeeedStudio Shield V2.1

So I bought a Bluetooth Shield from SeeedStudio lately (V2 model) and goofed around with it a little bit. I'm using my HTC One M8 to communicate with it just to send some dummy words. Whenever I send ...
2
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0answers
278 views

Sparkfun MicroSD shield cannot open log file

I'm currently trying to log data from a GPS shield onto a microSD card using a Sparkfun microSD shield. All my code will compile, but when I open the serial monitor the microSD will initialize, but ...
2
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0answers
278 views

Unable to read any SMS's other than the first SMS using SIM908 shield

I'm using two SIM908 shields to communicate with each other. One of the shields will be connected to a sensor and it should send values contentiously to the second SIM908 (receiver). I'm facing a ...
2
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0answers
734 views

Chat between Xbee and Arduino

I'm very new with this devices so I'm a bit confused. I've got two Xbee modules series 1 and an Arduino UNO. I want to make like a chat between the two Xbee modules, one of them connected to the PC ...
2
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0answers
459 views

Data exchange through USB Host Shield

I have a Razor IMU, which communicates through a USB to Serial Converter with a USB Host Shield mounted on an Arduino Mega 2560. Even though serial communication can be achieved directly through the ...
2
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0answers
142 views

Arduino with NFC: Garbled Serial Monitor

I started working on a small programming project just for fun and I have got stuck. I have been using the following tutorial to make an Amiibo Music Box Now using the libraries the tutorial suggested,...
2
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0answers
218 views

Intermittent wifi/hotspot connection

I have an Arduino Mega 2560 with a cc3000 Wifi shield that is sending messages to dweet.io. Here is the relevant portion of my code: // Post data to dweetio char data[125]; sprintf(data, "?t1=...
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0answers
599 views

Can I use an Arduino Due as a flash drive?

More specifically, can I use an Arduino Due to have an interface that can plug in/out of a USB port on a computer, connect it to an SD card or similar via a sd card logging shield, and have it present ...
2
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0answers
473 views

GSM shield for Arduino Due

Is there any good quality GSM shield compatible with Arduino Due? I have searched for gsm shield but it seems all shields have operation voltage 5v. Any suggestion would be helpful.
2
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1answer
1k views

How do I use I2C from an Arduino Uno when I have a GSM shield mounted?

This may be an extremely obvious question but I don't seem able to find a definitive answer. I have an Arduino Uno and a Sim900 GPRS/GSM shield fitted on top of it. I had I2C working on the Arduino ...
2
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0answers
1k views

Arduino Program for Olimex ekg/emg shield to detect heart rate in bpm as well as show ECG in ElecGuru software

The manual of olimex ekg/emg shield provides a link for ShieldEkgEmgDemo code, it can show ecg in realtime in a software ElecGuru. The link to software is also provided in the manual. I need to get ...
2
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0answers
290 views

DFRobot Bluno + Relay Shield

I'm a new to all things electronics and I'm having trouble using a DFRobot Bluno V2 with a DFRobot Relay Shield for Arduino V2.1. For testing purposes I've done the exact same circuit as represented ...
2
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0answers
640 views

Sparkfun Red board and CC3000 shield not allowing multiple HTTP_GET requests.

I have a SparkFun Red board (Arduino Uno R3) with a SparkFun CC3000 shield attached. I am trying to post data to the "data.sparkfun.com" service in order to test a basic Wifi data logger. I am using ...
2
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0answers
83 views

How to program your Arduino Due while its connected to a display?

Im trying to program my Arduino Due and it seems that I have to disconnect the display from it every time. Is there a work around for this? Im using a 7" TFT with a CTE TFT LCD/SD Shield with a ...
2
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0answers
219 views

GSM shield SIM card troubles

So I'm trying to use the GSM shield to communicate with my smart phone. The SIM card that came with the shield only works with other devices on that network, and it's an obscure latin network that I ...
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0answers
20 views

Using Arduino Click shield with NDIR Click CO2

I am trying to use (NDIR CO2 sensor Mikroelectronika) with Arduino Mega 2560 utilizing the Click shield. Mikroelectronika provides libraries for their platform (likely proprietary), hence i have no ...
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0answers
41 views

Proper wiring for a HiLetgo DAC to Arduino

I have been having trouble finding any recourses for a DAC chip that I bought. It is the HiLetgo PCM5102 DCA. https://www.amazon.com/gp/product/B07Q9K5MT8/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&...
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0answers
55 views

How can I use GPIO pins on an esp12e UART?

I've bought an esp12e UART that unfortunately had some issues, but I was able to fix them. This is how I connected it to the arduino. With this setup, I was able to host a simple web server and it ...
1
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0answers
80 views

CAN Bus Shield Initialization Failed

The Problem I've been working on a project that requires the use of a CAN Bus Shield v2 on an Arduino. For most of the time it has worked great, completely as intended. But recently, I was trying to ...
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0answers
169 views

usb host shield + wireless mouse (Read 5 times)

hello guys i have a problem , i have a usb host shield v2.0 from circuits @home attached to an arduino mega and to a usb wireless reciever mouse , this is the serial monitor output : x=0 dy=3 dx=0 ...
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0answers
114 views

i build quadcopter using USB HOST SHIELD + NRF24L01 but the data transmit is wrong

I am building mini Arduino quadcopter project. I am using USB host shield for joystick support and nrf24l01 to transmit the data. Unfortunately, I got wrong data transmitted at the receiver and tried ...
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0answers
27 views

Will L293D arduino shield lose functionality if I connect it with jumpers instead of mounting on arduino?

I'm new to arduino and have bought a L293D motor driver shield which have no heads on the pins. I looked at the pinout and it seems that shield does not use any of the pins "by default". So will it ...
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0answers
82 views

D1 Mini + TFT & I2C Connector Shield not going into deepSleep

I'm trying to write a sketch to use a Wemos D1 mini connected to several shields including a LOLIN TFT & I2C Connector Shield (v1.1.0). This powers a small ePaper display (LOLIN 2.13" diagonal ...
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0answers
203 views

Help Needed! How do I attach a color sensor to a 2WD robot and use it to control its movement?

I'm relatively new to the world of Arduino, so don't be frustrated if I ask questions that could be silly. This project has a deadline, so any input is appreciated. THE PROJECT: I am planning to ...
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0answers
153 views

Using Arduino Sensors with STM32 based NUCLEO boards

Right now I'm programming an Arduino Uno Rev3, I'm using a Sensor Shield v5 (image at the bottom) to be able to have several Ultrasonic sensors and Servos. Right now I'm thinking about getting a ...
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0answers
248 views

How to make VOLTE/LTE or LTE calls using Arduino?

I want to make VOLTE/LTE calls using Arduino. I searched everywhere in Google. At last I found a website LTE Cellular Shield for Arduino with Voice!. But I cannot find SIM7500 Shield in online shops. ...
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0answers
82 views

Using Arduino based OpenCR with USB Host Shield 2.0 to connect to PS4 controller

I am trying to use a PS4 controller with my dynamixel setup using the OpenCR 1.0 board. The USB Host Shield 2.0 library is used to talk to the controller, but the current library does not support Open ...
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0answers
91 views

MKR 1000 not found in ports when MKR IMU Shield is connected

I am trying to connect my MKR IMU Shield to my MKR1000 by placing the IMU shield in the MKR1000. When I do this, however, the Arduino IDE and Simulink are unable to find the port that my Arduino is ...
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0answers
500 views

Interfacing optical mouse with arduino

I have a USB mouse which I am using to measure distance travelled by my bot for a project. I followed this blog to get the optical sensor from the mouse from the arduino and interface it with the ...
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0answers
112 views

How to control 30 stepper motors using Arduino?

To prototype my project, I'm going to use an Arduino. I need to control 30 step motors. 4 of these step motors should always be ready to work, no matter other motors are working or not. But the other ...
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0answers
33 views

Can't fetch arduino param on server, Using POST method via arduino wifi shield

I am creating a slot sensor, using photoresistor. The goal is to send the photoresistor value, via analog read, pin A0 to my web server, so I can stored it in my database. void loop() { int ...