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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

Arduino GSM Shield Firebase [on hold]

I had a Firebase database application running with an Arduino ESP8266. I have to do this now with an Arduino GSM shield. Which GSM should I use? Is it possible to make a firebase connection with ...
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1answer
28 views

What are the specifications for a shield to send a SMS over the 3G network in Canada?

I am currently trying to get a project done that needs the Arduino to send a message when grain is heating in a bin. My plan is to have the Arduino collect the information from temperature sensors and ...
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0answers
14 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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14 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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0answers
45 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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1answer
68 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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2answers
42 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
55 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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1answer
41 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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1answer
40 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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1answer
56 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
93 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
176 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 ...
2
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1answer
90 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
72 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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1answer
69 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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1answer
284 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
83 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
152 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
32 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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0answers
52 views

Mini USB Host 2.0 and MKR1000

I have a MKR1000 board mounted on top of the MKRMotorCarrier and connected to an IMU Shield that uses GND-3V-SDA-SCL pins, which leaves the MKR1000 available with RX, DAC0/A0, SCK, MOSI, GND, TX, MISO,...
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0answers
149 views

Is it possible to attach more than two Servos to an Adafruit V2 Motor Shield?

The Adafruit Motor Shield V2 allows two servos to be attached to 3-pronged headers. While the screw-in block terminals enable the use of 4 DC Hobby Motors or 2 Steppers, which are powered by an ...
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1answer
44 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
106 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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0answers
1k views

Error Compiling for Board, exit status 1?

so I was attempting to upload a sketch to my Arduino board, and I am unable to compile the sketch. The error returned is: Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno" c:/...
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1answer
47 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
55 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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0answers
42 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
123 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
109 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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0answers
138 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
145 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
381 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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votes
1answer
215 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
678 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
29 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 ...
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1answer
74 views

Xbee shield to shield connection sends but not receives correctly

Setup: 2XArduino Uno 2x XBees S1 2x Sparkfun xbee shields. My first arduino reads in values from a photoresistor and sends the values to the second arduino. I know for sure the arduino is sending ...
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0answers
140 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. ...
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1answer
42 views

Help! My motors are not working!

I have made a project using Arduino, 3 LDRs and a L293D motor driver shield. My project was that when I block light from the first LDR, the motor will spin. When I block light from the second LDR, the ...
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0answers
257 views

Arduino external 5V power supply

I'm designing a shield for the Arduino Uno with some sensors that require +5V, +3V3 and +3V Vdd. I want to power everything with a single DC adapter so I have a voltage regulator that converts the DC ...
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1answer
346 views

Arduino Mega Wifi Shield Timeout Error

I got an Arduino Mega(not original) and also a Wifi shield, when ever I try to upload my code to it, I get this error: Sketch uses 5504 bytes (2%) of program storage space. Maximum is 253952 bytes. ...
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1answer
175 views

Problem with Arduino Uno and SIM900 shield logical communication (rx & tx)

The logical communication(rx & tx) between the shield and Arduino Uno doesn't work. Arduino (rx & tx) supply is 0 & 5 V but this is 0 & 2.8 V. What am I to do?
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1answer
649 views

Switching between SPI Devices when one is an SD card

I'm using a USB Barcode scanner connected via a USB shield, I'm able to get the readings from the barcode using this example, After getting this readings, I'd like to save it to an SD card but the SD ...
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0answers
84 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 ...
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1answer
186 views

Wireless Shield Not being detected w/ Arduino Uno R3

Wireless Shield is not being detected by arduino, not MAC address is displaying. Not sure what to try next, there is nothing noticeably wrong with the shield at first glance. Green LED under status ...
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1answer
307 views

LEDs on Arduino WiFi Shield

I would like to know the purpose of the LEDs on top of the Arduino WiFi Shield: L9/Link/Error/Data (left in the picture). What do they indicate?
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1answer
77 views

How can I know if I can stack some shield on another shield?

Yesterday I tried to stack a motor shield on a servo motor shield already stacked on my Arduino Uno. But I realized that I have some problem when I try to use both of them. It seems like some energy ...
2
votes
1answer
2k views

5 inch TFT LCD for Arduino

I want to use a 5 inch 800x480 TFT display (touch not needed) with an Arduino (mega, uno or due). I'm thinking of buying this display: link (buydisplay.com). How can I connect this ? I have also ...
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0answers
219 views

Adafruit motor shield: No i2c devices found error

I have Adafruit motor shield v2.3 mounted on an Arduino Uno. On running the I2C scanner code linked here: Why is my Adafruit motor shield not spinning my motors? The code displays "No I2C devices ...