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Questions tagged [adafruit]

Adafruit Industries is an open-source hardware company founded by Limor Fried in 2005. Use this tag to mention issues with Adafruit products or tutorials.

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2answers
854 views

uint8_t etc as color variable

I am very new to coding and I am attempting to teach myself the best I can. I have no prior knowledge of coding and am filling in the blanks via YouTube and forums alike. One place I keep getting ...
-1
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1answer
132 views

Arduino Micro project with Bluetooth low energy

I created my project prototype with Arduino Micro and Adafruit Bluetooth low energy device. Now I need to develop the prototype to production (like a small USB device). I just need Rx, Tx, 3V pin ...
3
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1answer
477 views

Working with Seed BLE Shield and Adafruit Feather BLE

Long story short: I need to pair these devices: Arduino UNO with Seeed BLE Shield Adafruit Feather 32u4 Bluefruit LE. The Seeed shield is configured and able to connect and communicate via the UART ...
2
votes
1answer
358 views

Adafruit TLC5947 breakout board is not working with my Arduino Uno

I am trying to use this board (setup tutorial on left hand nav) with my Arduino Uno. I have tried using their example code, as well as my own simplified code, to turn on a single blue LED. The ...
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2answers
65 views

Looking at Adafruit's website I'm confused which wallcharger I should get

As the title says there are many different wall chargers to choose from. 12v, 9v, 5v, with different mA amounts... The starter kit on Adafruit's website mentions to get the 9V 1000mA switching power ...
3
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3answers
7k views

How many LED Strips can we connect to an Arduino Uno? Is there a way to connect 1-3 meters worth without needing extra parts (relays)?

I am looking at Adafruit to purchase some LED strips for a mod for my computer case, and want to power it with an Arduino. I am looking at the Uno, but the Mega looks good too. I hear the Uno is ...
1
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3answers
113 views

Drawing amperage with Arduino code

I'd like to preface this by saying I'm a complete beginner, but I have learned a ton already on this project, and I feel like I'm almost there. I'm using an Arduino Uno and an Adafruit motor shield. ...
3
votes
1answer
888 views

Need help converting a processing sketch for a robot arm with servo shield

I'm currently building a robotic arm. I'm using an Adafruit servo shield, 7 servos, Arduino uno, and a 5V 10A power supply. I found a program that controls the arm with mouse movement using a ...
1
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0answers
881 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 ...
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2answers
505 views

Arduino Uno + Adafruit Ultimate GPS Shield Serial issue

I've had an Arduino Uno for a couple of months-making basic sketches-and recently purchased an Adafruit ultimate GPS shield and attached with soldered headers. This shield has 2 options for reading ...
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2answers
5k views

What components I need for a small GPS tracker

I am new to Arduino and want to create a graduation project for my university. I am thinking to create a GPS tracker that can be attached to a cloth to track kids, for example. So the requirements for ...
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1answer
1k views

NeoPixel Ring Usage Without Arduino

I am looking at purchasing a NeoPixel Ring for a project, but need it to work without an Arduino. Once the NeoPixel has been programmed by the Arduino, will it function when powered without the ...
1
vote
1answer
564 views

Connect 2 LSM9DS0 to Flora

So I'd like to connect two of these sensors to an Adafruit Flora (https://www.adafruit.com/products/2020). In the product page it says you can only connect one but in the forum an admin said that you ...
1
vote
1answer
678 views

ATMega328 + Bluefruit LE stops working soon after power on (not consistently)

Now I am Running Arduino code for Bluefruit LE on bare ATMega328 with 8MHz internal clock, with Bluefruit connected, pin 0 and 1 RX/TX unused, and AT42QT1011-based capsense circuits (logical input to ...
0
votes
1answer
206 views

Running Arduino code for Bluefruit LE on bare ATMega328

I need to hook up Bluefruit LE Breakout (nRF8001-based) to ATMega328 chip (to use it as wireless UART), and it seems like the library provided is for Arduino. What I have is just bare ATMega328 (note ...
2
votes
1answer
544 views

Adafruit_NeoPixel define pin for different setups

I am looking for a way of defining multiple pins for my RGB strips. Currently the defined variable is set with the pin within it. This works just fine if I only had one RGB strip connected to the ...
2
votes
1answer
456 views

Execute Code sent over Serial

I was wondering if its possible to send code to the Arduino, and then have it execute this code. What I'm trying to do is use an Arduino Mega with a bunch of stuff connected to it send code to an ...
0
votes
1answer
249 views

Having issues with sending output to WiFi Shield

I am doing simple proof of concept trying to send C++ program output to Adafruit CC3000 WiFi Shield (using Visual Studio 2013 Desktop Edition on Windows 8.1). In my design laptop is connected to UNO ...
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3answers
2k views

Adafruit DHT22 Library + Arduino Due not compiling?

i recently purchased a DHT22's and tried to get it to work using Adafruit's DHT library on Github. When i compile it with a Arduino DUE, it gives me the following error: C:\Users\Moz\Documents\...
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0answers
3k views

Motor shield power from Arduino pro mini 5v RAW Pin 150mAh cannot run servo

linked to my old question, Pro Mini 5v with Adafruit motor shield v1 power sharing problems I figured out and use one 7.2v battery (6 AA cells), and link it with RAW pin to Pro mini and join its 5v ...
1
vote
2answers
258 views

I would like to control 16 motors with a servo shield

Ok so I've used nicks code and have the code running once ok.... I the noticed however I had a fast 180 sweep and then it returned under control of code. I then noticed the comments wrt pulselen of ...
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0answers
351 views

Adafruit Trinket & Ultimate GPS & Google Earth Realtime

I'm using a 5v Pro Trinket that has an Adafruit Ultimate GPS connected and is connected over serial to my laptop. I am not using any fancy parsing code, I'm just letting the GPS spit out the raw data. ...
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4answers
2k views

iterate through values in an array of strings to print

I (think I) am trying to iterate through the values of an array and print the string to a tft. I have declared the array of 4 strings, and that works fine. But when I try to print it, I get garbage. ...
0
votes
1answer
510 views

Can't drive long NeoPixel strips with Due or Duemilanove?

I spent a significant part of today developing a sprite movement library for a 30-pixel NeoPixel strip using my Arduino Duemilanove (ATmega 168). It works like a charm. However, if I change N_LEDS to ...
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2answers
497 views

Pro Mini 5v with Adafruit motor shield v1 power sharing problems

I am trying to convert a RC car into autonomous car using Arduino Pro Mini 5v 16 Mhz. I have done this with UNO and Adafruit motor shield 1.0 with 4 gear motors and one micro servo for mounting range ...
2
votes
1answer
861 views

Adafruit_GFX setRotation not working when called from within a class

Using an ILI9341. I'm trying to set the rotation from within a class, but it's not working. The code is very straight forward. If I rotate in the class, the setRotation code does not work but the ...
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0answers
794 views

Adafruit motor shield 1 and Arduino Pro Mini

Can any one tell me how to connect Adafruit motor shield v 1.0 with Arduino Pro Mini 5v 8 Mhz. Motor shield uses which pins as I want to replace my Arduino UNO to Pro Mini and need re-wiring. Tried it ...
1
vote
1answer
317 views

Adafruit CC3000 Wifi Shield on IRQ 2?

I'm using an AdaFruit CC3000 Wifi shield as an HTTP server with an Arduino Uno. I have a script which works fine -- logs into my Wifi and listens for connections as it should. However, I want to ...
1
vote
2answers
446 views

Use Adafruit 16-Channel 12-bit PWM/Servo Shield to switch relays

I'm wondering if using the Adafruit 16-Channel 12-bit PWM/Servo Shield is it possible to switch relays, such as use that shield as a multiplexer and use digital output without PWM. Is it possible? ...
3
votes
1answer
4k views

Arduino with WS2812 using Adafruit NeoPixel library fade in/out different patterns

Hey all I have been trying to figure out a way to random set patterns for my fade in/ out code below: int PIN = 3; int totalLEDs = 11; int ledFadeTime = 5; Adafruit_NeoPixel strip = ...
4
votes
1answer
2k views

Adafruit Music Maker Shield - Retrieve song names from SD Card

I am currently working on a project that plays music for you. My question for this thread is, is it possible to retrieve the names of the songs within the micro SD card that is inserted into the ...
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vote
1answer
1k views

Arduino Motor Shield and Adafruit CC3000 WiFi Shield Compatibility

My question is similar to this one: Motor shield and wireless transceiver compete for same pins But not exactly the same! I would like to know if the solution is as practical, though. I have an ...
2
votes
0answers
741 views

Why won't Wifi Shield detect any networks? Even really close

I just purchased an Adafruit Wifi Shield CC3300 and strapped it onto my Arduino Uno board. I'm running this basic sketch that I found to test the functionality of the Wifi Shield: http://arduino.cc/...
1
vote
2answers
760 views

error: 'CLASS' does not name a type only when creating object inside another object

I'm trying to use Adafruit's LED Backpack library within a custom class. When I use the Adafruit library directly within a sketch, it compiles fine. When I use an example sketch provided with the ...
0
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1answer
2k views

Adafruit motorshield disconnected but getting current from Arduino

my Adafruit motorshield is getting current from Arduino board even after disconnected from battery. I was planning to give separate dc power from 6 AA cells to motor shield but not sure if extra ...
1
vote
0answers
631 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 ...
0
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1answer
284 views

Arduino: The program exited the loop early and execute setup() repeatedly

I'm working with Arduino Uno, Adafruit PN532 NFC/RFID Shield and along with other modules. I'm posting this test program because I found there's conflict with the serial output while writing code to ...
1
vote
2answers
11k views

Sample code for using adafruit servo shield?

I would like to control 16 motors with a servo shield, however, I have found scant to nothing sample code online. The one I was able to find is...strange to say the least https://github.com/kachok/...