Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

-1
votes
0answers
12 views

Arduino mcufriend 2.8 tft

I bought the mcufriend 2.8 tft for my uno. I installed the gtx and mcufriend library. First tried graphics but it just stay white. Then i look at the serial port and see that my controller is the ...
0
votes
1answer
51 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 ...
0
votes
2answers
57 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
votes
1answer
40 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 ...
0
votes
1answer
59 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 >...
0
votes
1answer
42 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.
0
votes
1answer
76 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 ...
2
votes
2answers
74 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 ...
3
votes
4answers
129 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 ...
0
votes
1answer
27 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 ...
0
votes
0answers
43 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,...
0
votes
0answers
78 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 ...
0
votes
1answer
40 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 ...
0
votes
1answer
69 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 ...
0
votes
0answers
81 views

Camera VC0706 No camera found?

I have followed steps of this tutorial https://www.elecfreaks.com/7861.html But the problem No camera found? #include camera_VC0706.h #include SD.h #include SoftwareSerial.h #define chipSelect 10 ...
0
votes
0answers
747 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:/...
-1
votes
1answer
37 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 ...
1
vote
1answer
43 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 (...
1
vote
0answers
34 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 ...
-2
votes
1answer
39 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 ...
0
votes
1answer
1k 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 ...
0
votes
2answers
79 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> ...
0
votes
0answers
80 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 ...
0
votes
2answers
108 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....
1
vote
1answer
183 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 ...
-1
votes
1answer
162 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 ...
1
vote
2answers
495 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 ...
0
votes
1answer
27 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 ...
0
votes
0answers
61 views

Multiplexing over limited Arduino pins with LCD shield

I was interested in creating an IC testing unit with a fancy LCD display shield -- you know, like those snazzy touchscreen LCD displays with color. Unfortunately, the tradeoff is that I am left with ...
0
votes
1answer
51 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 ...
1
vote
0answers
118 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. ...
0
votes
1answer
41 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 ...
0
votes
0answers
107 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 ...
0
votes
1answer
299 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. ...
0
votes
1answer
149 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?
0
votes
1answer
461 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 ...
1
vote
0answers
66 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 ...
1
vote
1answer
144 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 ...
0
votes
0answers
368 views

How to read all directories in a USB device through a USB shield?

I want to read and display in Arduino serial monitor all file names in my USB device using a USB shield. /* Listfiles This example shows how print out the files in a directory on a SD card The ...
0
votes
1answer
245 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?
0
votes
1answer
63 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
1k 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 ...
0
votes
0answers
168 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 ...
0
votes
1answer
253 views

Arduino Ethernet Shield 2: How can I automatically determine the MAC Address?

I'm using an Arduino Mega. I know that Ethernet Shield 2's come with a sticker with the MAC Address printed on it. This would imply to me that this address is hardcoded into the shield. Is there any ...
1
vote
4answers
101 views

Automotive Lighting Control Module

I am looking for an Arduino-based solution for an automotive lighting application. System Requirements: Able to Operate in Automotive (Interior) Environment (12 +/- 2V DC Voltage) Minimum 3 12 V ...
1
vote
0answers
57 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. ...
0
votes
1answer
140 views

What would be the Western / American equivalent of the Troyka Shield and modules?

I'm taking an online course on Arduino robotics, produced by the Moscow Institute of Physics and Technology. The lectures are translated into English, but all of the parts referenced are by the ...
4
votes
2answers
678 views

How to measure resistance of TFT Touchscreen

I'm using a TFT Touchscreen shield with my Arduino UNO, and I'm running "tftpaint" example by Adafruit. I've noticed that when initializing the Touchscreen object, a resistance value must be provided....
0
votes
1answer
286 views

Comparison of Board Shape between Arduino MEGA and Arduino DUE

I'm using KiCAD to design boards, and while it has a lot of Arduino templates, it doesn't have one for the Arduino Due. Now, I've did some searching, and it looks like the Arduino MEGA is very similar ...
3
votes
2answers
232 views

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 ...