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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23 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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11 views

SIM900 can't attach GPRS

I have a SIMCom SIM900 GPRS Shield that works with an Arduino UNO R3. I am finding problems when I try to perform an HTTP POST request. I started guessing it was a problem with the GPRS because the ...
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39 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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2answers
33 views

SD card example freezes at line SD.begin() what should I do?

I have a 16GB SD card which is formated with FAT32. I'm trying to run the example codes presented for SD in Arduino. The SD card is inserted in the data logging shield and the CS pin in this shield is ...
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50 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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25 views

Issue with Arduino car bot, the servo motor moves randomly also it turns hot pretty quickly

I trying to create an Arduino avoiding obstacle car. Using Arduino Uno +shield (sensor sheild v5.0). The problem is that when I upload the code, the servo moves randomly (it doesn't rotate to the ...
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116 views

Nano can't get reply from ENC28J60 Ethernet Shield

My Arduino Nano can't get a reply from my new ENC28J60 Ethernet Shield - I can't get any library examples to work. Using the UIPEthernet lib, and running the EchoServer example with logging turned up, ...
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1answer
56 views

LCD shield submenu

I need to make an app that does various functions regarding IR signals (remote-like) I need to create a sub menu in order for me to access multiple functionalities. Arduino-Uno-Menu-Template I used ...
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24 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 ...
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20 views

send data scanner via RF24

I have arduino uno+usb shield+barcode sacnner+RF24 for transmitter and arduino uno+RF24 for receiver. i want to send scanner data to receiver. This is my code //**********************************NRF*...
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19 views

What is the advantage of using a 4-20mA shield rather than directly measuring the voltage drop?

I would like to measure a sensor which uses a 4-20mA current output. The easiest way would be to set the voltage drop to around 5V using a 250 ohm resistor and measure the voltage using the analog pin....
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21 views

Any possible way to stack Motor Driver shield L293D with Xbee Shield v03 on arduino?

So i am trying to stack these two shield on arduino, now the problem here is that i guess there is a conflict between the pins of arduino being used by both shields, so can anyone suggest a solution?
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28 views

Can an Arduino Pro Mini interface with a full-sized WiFi shield?

We have an Arduino Pro Mini on a breadboard connected to a 9V battery and a sensor, reading data. We also have a full-sized Adafruit WINC1500 WiFi Shield with PCB Antenna. I would like to know if they ...
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3answers
88 views

Is there an alternative to soldering to connect boards?

I know that shields are usually soldered to headers so they can be attached to the board with the Arduino. I have a tremor, which makes soldering impossible. Are there ways of connecting PCBs without ...
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68 views

Power supply while using a shield

Sorry if this is a dumb question, I'm new to Arduinos. I'm planning to use a MOVI voice shield with SparkFun's RedBoard Turbo (3.3v). The RedBoard Turbo requires a power supply under 6VDC, but the ...
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52 views

Help with Bluetooth shield

Hey guys I have this Bluetooth shield Does anybody know how I can get it to connect to Arduino? I can't find any guides on it. I have this serial program that I want to use to turn on a led. but ...
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33 views

Voice Recognition and then read CSV

BLUF: Is it possible to use a shield to recognize a voice command like a name, then look for that name and info in a CSV file and then store certain info as variables to then actuate something? ...
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308 views

Shield SIM808 EVB V3.2 charge a Lithium battery?

hello friends do you know if, can this shield (SIM808 EVB V3.2) charge a lithium battery directly or i need additional hardware?, I know that module has conection for battery but it can charge it?
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50 views

Sending data to ThingSpeak with esp13 shield [duplicate]

Well, I am trying make a project which is reading motor RPM sending to ThingSpeak. with this I am planning to check my motors speed at home. I can made it with esp8266 modul but I saw original ...
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72 views

Arduino Uno Issue with SIM900 Network registration

I have a SIM900 module on which I have a T-Mobile Data Only SIM card (pin unlocked). I am powering on the SIM900 module using a power adapter which can supply voltages 4.5, 5, 6 7,5 and 9 V and 2.1A. ...
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80 views

Arduino IDE 1.8.8 built in 1.2.1 Temboo Library?

I am weirded about the built-in "latest Temboo library" with the latest Arduino IDE; when a previous older code says to download the latest Temboo version < 2? (which I found this: https://temboo....
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549 views

Error code board and boards.txt? Formatting error? cannot verify alarm.txt or any

Arduino: 1.8.8 (Windows 10), Board: "Arduino/Genuino Uno" Error reading file (E:\arduino\arduino-1.8.8\hardware\arduino\avr**\boards.txt:0**): Invalid line format, should be 'key=value' Error ...
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57 views

What is the typical form for a finished Arduino project?

I just started with Arduino. I am an experienced software developer so the programming side was already mostly known to me, and I am surprised at just how easy Arduino have made the hardware side of ...
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3answers
87 views

NEED Help With Servo motor

I have just bought a MG90s tower pro servo for my school project and there is a problem. As soon as I connect my servo to the cnc shield or directly arduino, the whole arduino board turns off. I ...
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47 views

Problem with MP3 Shield and function calling combination

I wrote this code to control my Christmas tree. It plays the Holy Night Code perfectly but never transitions to the next song. In addition, it plays random notes after the song is finished. Does ...
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93 views

Error with Sparkfun MP3 Shield and Arduino Due playing music files

The code worked on my Ardino Uno. I plugged it up the exact same way and am now getting an error. Here is the error I get when I try to upload my code to the due: Arduino: 1.8.5 (Windows 10), Board: ...
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190 views

Random characters generated by LCD during serial.read()

I am using the following codes to print characters on LCD display.... #include <LiquidCrystal.h> const int rs = 8, en = 9, d0 = 4, d1 = 5, d2 = 6, d3 = 7; LiquidCrystal lcd(rs, en, d0, d1, d2, ...
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1answer
198 views

How to write a script if water sensor comes into contact with water for more than 2 mins and LED lights up

I am a newbie to arduino and programming. I would like to come out with a code for water sensor to detect the presence of water for more than 2mins before lighting up the LED lightbulb. Currently ...
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2answers
316 views

arduino usb host shield and sd card [closed]

when I use the sd card on the mega or the arduino uno it works. Everything is fine. However, when I use it in combination with the USB shield host it doesn't work. I know the usb shield host works ...
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1answer
161 views

Are there any Wi-Fi modules for the Arduino Uno that may connect to an external Wi-Fi Antenna?

I have an Arduino Uno I need to connect to Wi-Fi to make HTTP POST Requests to a Raspberry Pi Web Server. The Arduino is located only about 30 feet from the AP, but there is a brick wall in the line ...
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1answer
83 views

Playing MP3 Shield tracks

I have an MP3 shield on a Arduino Uno. When using "File Player" I can get the tracks to play by keyboard entry with three digits (001-009). The problem is that I want to use (SFEMP3Shield > examples >...
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100 views

How do you use the plastic cover/case that came with Arduino?

They have holes for screw on, on top of the holes on the Arduino itself. Where can I find parts that are compatible with this case/cover? What was the intended use of this case/cover? Thanks.
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700 views

PCA9685 servo shield not working

Im working on a project where I want to connect 32 servos together. I got: -Arduino uno -2 PCA9685 16-Channel 12-bit PWM/Servo Shield -power supply 5v 10 A -All wiring is to the right pins (I have ...
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2answers
93 views

Stacking 3 of the same shields on top of each other and instructing them in sync

Context: I have an audio track separated into individual channels grouped by frequency and speaker location. I need to play all three of these channels simultaneously and perform instructions like ...
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4answers
189 views

Can you help me trim my code?

First of all I want to be clear, I'm not very skilled in programming methods, all the C I learned was for various Arduino projects. That being said, I just finished a project that reads some data ...
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1answer
33 views

Ethernet socket impedes adding shields

I just bought a KEYESTUDIO W5500 Ethernet Arduino without realizing that the Ethernet socket on the board impedes adding any additional shields to the device because: Horizontally the socket runs ...
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1answer
48 views

How to determine hardware/software compatibility? [closed]

Currently, I'm using Greiman's SdFat Library with Adafruit's Data logging Shield. I'm thinking about switching to the Adafruit micro SD Card Breakout. I imagine that it will work as both products ...
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1answer
180 views

USB host shield help [closed]

Hello, I apologise for being such a noob but can someone help with this. I am having trouble working with this. When I insert the arduino's pins into my new usb host shield , there is no indication ...
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1answer
83 views

Press button and Send Message Error

The problem is that sometime I don't even need to press the button and it sent message and keep on sending continuously. What I want to do is that once the button is pressed, sent 1 message. I ...
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1answer
81 views

Connecting CAT5 robustly between portable Arduino and more portable sensors

Newbie wiring question. I’m building a lightwand of some sort, involving an RGB LED and a few pushbuttons that I want to wave around (the “remote”), while staying connected over ~0.5 - 3m to an Uno (...
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59 views

Can I make my own TFT LCD shield? [duplicate]

I have a few TFT LCD displays lying around which I salvaged from old phones. I would really like to use them with my Arduino. I didn't get anything about making a shield on the net but only links to ...
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1answer
179 views

My shield does not have further female headers? How do I stack more shields?

I purchased a motor shield (L293D) and it doesn't have the female header which I can connect to another shield. What can I do to stack up more shields? For being more specific I ordered my shield from ...
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1answer
2k views

Send SMS Arduino Uno + SIM900A shield

I am working on a module to send messages. I write the message on the serial monitor + phone number and I have to send the message to the line. Question: How to send messages through the SIM900A ...
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2answers
150 views

Elechouse Mo3 Shield Play Random Song

using this code to try and play a random song when someone walks by my distance sensor I get an error, the same song(track 0001) plays every time. Any advice? #include <SoftwareSerial.h> ...
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218 views

Play a single sound using music shield

I am working on a music shield, I want to play a sound when a sensor triggers (it is very noob I know) well The music shield manufacturer provides a simple class named MusicPlayer here you can find ...
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2answers
226 views

Powering Arduino Uno and Ardumoto Motor Driver Shield

I need to power an Ardumoto Shield to drive two 12V DC motors. I was planning to connect a 12V battery to the Max 18V input on the Ardumoto and a 9V battery to the barrel jack input of the Arduino Uno....
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1answer
592 views

Communication over UDP between Dues with Arduino WiFi Shield

I'm using the Arduino WiFi Shield to make two Arduinos Due communicate using UDP. The first node to send a message (the Client) doesn't always receive a reply from the other node (the Server). The ...
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1answer
267 views

Why is GsmScanNetworks not working?

I'm using an Arduino UNO with an Arduino GSM Shield 2 with Integrated Antenna A000105. However, when I try to upload the code, in the serial monitor it tells me my IMEI is 0 and signal strength is 0 ...
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2answers
1k views

Uno r3 - Can't get USB Keyboards to work with an USB Host Shield

I'm a day 1 beginner to Arduino, and I am trying to obtain input from a USB keyboard. I've connected the USB keyboard to an Arduino USB host shield attached to an Arduino Uno r3, and I am using the ...
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1answer
30 views

ledkeypad shield not responsive

I recently purchased several of the DFRobot ledkeypad shields: https://www.dfrobot.com/product-1407.html I have Arduino Leonardo (which also had some problems in the beginning, being recognized as ...