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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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1answer
182 views

Configuring Accelerometer on BNO055 sensor

I'm using the BNO055 9DOF Adafruit sensor to measure the acceleration/orientation. How can I change the configuration of the accelerometer from 4G (default) to 16G? What I already know: The ...
1
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1answer
168 views

add ID number to the feather m0 bootloader (flash)

I'm trying to add a serial number to the bootloader's flash area of Adafruit Feather m0 board. Seems like feather m0 0-0x2000 area on the flash is non writable by the arduino sketch. i wanted to add a ...
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0answers
74 views

Using the Adafruit_PWMServoDriver within a function 'crashes' Arduino Nano

Just switched out an Arduino 101 for a Nano and having trouble since then. When the following function is called, the Nano stops responding or doing anything. void thumbMove() { //interupt the ...
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0answers
16 views

Arduinos do not show up on Arduino IDE or device manager [duplicate]

I have two Arduinos, an Adafruit Feather 32u4 Fona, and an Uno. The Uno does not show up in the device manager when plugged in, the Adafruit Feather does not show either. Neither show in the IDE.
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2answers
1k views

how to send data to Adafruit Bluefruit Feather (32u4) over bluetooth?

Sup yo. I have my Adafruit Bluefruit Feather all wired up. It's lovely. I've got it responding to commands over the USB serial, activating an array of octocouplers. It's terrific. Here's the ...
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1answer
83 views

Rfid with Adafruit fingerprint together not working in Arduino Uno

I have edited my Code and now the issue is both are working but not together #include <Key.h> #include <Keypad.h> #include <Adafruit_Fingerprint.h> #include <SD.h> #include &...
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1answer
37 views

adafruit LSM9DS0 Library - ok with Uno but compile error with LinkitOne?

I'm calling an adafruit Flora LSM9DS0 magnetometer using the Adafruit library with the following sketch: #include <Wire.h> #include <SPI.h> #include <...
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0answers
195 views

Trying to connect to Cayenne IoT server after initalizing SPI display

I am trying to simultaneously view sensor values on Cayenne dashboard and on a TFT LCD touchscreen connected to my Aruino Uno (ATmega328p). I am using a Adafruit_ILI9341 touchscreen running on SPI ...
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2answers
673 views

Burning the Bootloader on Adafruit Feather 32u4

So, the default bootloader in Arduino is oddly set to erase EEPROM with every reboot, rendering the EEPROM, well, useless. I found where the fuses are set in the boards.txt file, but getting this ...
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1answer
78 views

Adadfruit Trinket software not running on ATtiny85

I have an application that uses a pair of nRF24L01+ as a simple RF link between a camera PC sync output and a set of LED flashes. The important factors are power and low latency - hence the 2.4GHz. I ...
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0answers
163 views

l293d motor shield LED glowing servo running but dc motors not running what to do

I was working with 4 dc motors and servo motor connected with L293D motor shield everything was working properly.I disconnected the dc power jack to upload a new program on it and for that when I ...
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1answer
174 views

How can i check for valid fingerprint and no finger detected? [closed]

i am working in arduino fingerprint sensor with adafruit. i am using two leds to check if fingerprint is valid. my problem is that i need three cases instead of two. 1 case: when fingerprint is valid. ...
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0answers
160 views

Adafruit Huzzah Feather not resetting and serial monitor garbage

Hi there, I have an Adafruit Huzzah Feather project laid out as you can see in the diagram above. Currently I am having trouble getting it to reliably reset and start the sketch. More often than ...
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1answer
441 views

A SoftwareSerial library for SAMD boards

So I've got three boards that I'm using to test this (modified) code: int sensor1Pin = A0; int sensor2Pin = A1; int sensor3Pin = A2; float sensors[] = {0,0,0}; void setup(){ Serial.begin(9600); } ...
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0answers
451 views

Writing arrays to SD card without looping

I'm using Adafruit Feather M0 with the Adalogger FeatherWing to time-stamp and save sensor readings in an SD card. Speed is critical so I want to create two arrays, one for the readings (int) and one ...
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2answers
167 views

How to detect an read buttons pressure on touchscreen [closed]

I made simple 3 red buttons like this: #include <SPI.h> #include "Adafruit_GFX.h" #include "Adafruit_ILI9341.h" #include "URTouch.h" #define TFT_DC 9 #define ...
1
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1answer
87 views

Adafruit IO example won't compile, library required is correct version

I have Arduino IDE 1.8.5 installed, and also Adafruit IO Arduino 2.6.0 and Adafruit MQTT Library 0.20.0. With the Adafruit IO lib comes a set of examples, and I wanted to use example ...
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1answer
132 views

Adafruit Motor Shield steppers not turning

The Adafruit Motor Shield is connected to 2 steppers which are wired correctly and work when I just use the onestep function. I understand that I cannot drive both at once, so I am using a while loop ...
1
vote
1answer
560 views

How to send string over bluetooth LE from Arduino [closed]

How do you send a string over BLE from Arduino? (and is it any different for an Adafruit Feather 32u4?) Background: I have force sensitive resistor (fsr) sending an Int value. I would like to convert ...
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0answers
673 views

Adafruit ESP32 device working on OSX 10.13 but not on OSX 10.11 on older machine

I'm new to Arduino - just got an ESP32-based Adafruit Feather HUZZAH32. I got it up and running on my Macbook Air (High Sierra) with no problem, following the instructions at this page linked from the ...
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0answers
36 views

Adafruit Music Maker and Keypad

i am trying to program an arduino so when I press a certain keypad password it plays a particular audio file and when I press a different password an alternative audio file plays. For some reason I ...
0
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1answer
340 views

LSM9DS1: Inconsistent data from an accelerometer

I'm currently getting inconsistent data from the accelerometer of my Adafruit LSM9DS1. To be more precise I either get a value close to the correct gravity (eg. 9.496515) or some reading like it was ...
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2answers
453 views

Error using Adafruit Feather M0

I am trying to upload an empty program on the Adafruit feather to see if it connects to my PC. So far, it isn't. I'm running a Windows 10 and I followed this guide: https://learn.adafruit.com/...
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0answers
96 views

Adafruit FT6206 controller won't start after unrelated code changes

I am using an Adafruit HUZZAH32 Feather with the ESP WROOM32 module and an Adafruit 2,8" cap touch Display. When trying my code I encountered a strange problem: one specific line of code lets the ...
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3answers
152 views

Add id to raw data in an array

I am working on an Arduino project, where I am transmitting GPS data between two Arduinos. This code can transmit the raw GPS data: int a = Serial1.available(); if(a){ uint8_t hej[a]; for(...
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1answer
61 views

Arduino Yun not showing anything on the serial monitor

I am having issues with the ArduinoYun. It's not showing any data in the serial monitor. The sensor lights up when I plug it in but that's about it and the code seems to compile but nothing is coming ...
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0answers
339 views

Fixing Error Messages “Error Compiling for Adafruit FLORA” & “'BLUEFRUITLE_HWSERIAL_NAME' not declared in scope”

I am trying to create a Heart Rate Monitor using the Wearable Bluefruit LE Module and FLORA boards (by Adafruit). The code is shown below. I am trying to tweak it so it configures correctly with the ...
2
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1answer
431 views

Updating firmware on Adafruit Huzzah ESP8266

tldr: I'm trying to re-flash a previously working Adafruit Huzzah ESP8266 breakout module to use the latest AT firmware. The re-flash doesn't seem to be working and I'm getting rather confused. This ...
0
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1answer
342 views

Problems connecting Adafruit Feather M0 to network

I'm trying to connect my Adafruit Feather M0 board to an existing WiFi network. Whenever I use the "ConnectWithWPA" example sketch, I receive "Attempting to connect to WPA SSID: "MyNetwork" " in the ...
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1answer
98 views

The sensors don't send correct data

I try to make a weather station, but I don't understand why it doesn't work. I had tried to read a lot of the sensors but I doesn't find my errors. The code: #include "DHT.h" #include "...
0
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1answer
363 views

Adafruit RTC begin() not returning false

I am programming my arduino with the capability to keep time with the DS3231 from Adafruit. I do not have the module yet, but am trying to figure out the rest of the build without it. However, it ...
1
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1answer
340 views

Adafruit Feather 32u4 Bluefruit LE and HC-05 Bluetooth module

Is it possible to connect an Adafruit Feather 32u4 Bluefruit LE with an HC-05 Bluetooth module? I am making a heart rate monitor using an Adafruit Feather, but it is unable to send the data to ...
0
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1answer
51 views

Adafruit Motor Shield and Bridge Library for Yun Shield

I am using the Leonardo board with the Adafruit Motor Shield v2, 2 steppers and the Yun Shield. The yun shield and steppers all run harmoniously, however, as soon as I do Bridge.begin() and anything ...
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1answer
131 views

How to vibrate Adafruit Feather 32u4 Bluefruit LE device? [closed]

I have 11 Adafruit Feather 32u4 Bluefruit LE devices. I want to vibrate my devices using a signal through an app. Is there any signal (Code from app like 0x56-NeoPixel checking, 0x43-clear color) or ...
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1answer
2k views

User configuration file does not exist or is not a regular file, skipping

I am facing issues while uploading sketch to Adafruit Feature 32u4 Bluefruit LE devices. When i try to upload Blink demo it was working fine and my device also blinking, But bellow error i am getting ...
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0answers
231 views

Dimensions for Adafruit RGB 16x2 Character LCD + Keypad Shield Cover

I'm looking to make a cover for the Adafruit lcd-shield: However, there are some dimensions missing from the provided pictures (namely the horizontal location of the various buttons) Does anyone ...
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2answers
40 views

Pointer problems using Adafruit MotorController

This may be a very simple problem but it has had me going round and round in circles, it is VERY similar to this [ Problem with wrapping Adafruit Motor Controller function calls in a class] question ...
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0answers
192 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 ...
4
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2answers
816 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....
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2answers
576 views

How can the sensitivity of capacitive touch sensors be limited?

I have an Adafruit circuit playground classic, and the touch-pads are so very sensitive. From a centimeter away, they trigger. I would be happy to just have regular inputs, or to have the sensitivity ...
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0answers
26 views

weird output from keyboard program

I am trying to write a keyboard (Key-glove) program. There are 4 buttons, and inputs should type specific keys. when the keyboard is active, I get output, but not what I am expecting for output. I get ...
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0answers
51 views

'Class SdFat' error message with Adafruit wave shield

I'm using Arduino Uno and Adafruit Wave Shield, with the WaveRP library. I was able to run the example programs of the waveRP library, but I try to connect a mic to the shield, didn't go well, so I ...
0
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1answer
126 views

How to control RC power switch with Arduino-/Adafruit-Board?

I want to control (switch on/off) a solenoid valve via an RC power switch and an Adafruit M0 Feather Bluefruit LE. The RC power switch is this one, and this is the Adafruit Board Pinout. My ...
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1answer
667 views

Adafruit Gemma unrecognised USB device on Windows 10

I have a V2 Adafruit Gemma from the Gemma starter pack, and I'm running Windows 10 Home (version 10.0.14393), on a 64-bit laptop. Following the Introducing Gemma guide I've installed the Adafruit ...
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1answer
202 views

Uno - PCA9685 Servos are too shaky before stabilizing - when using two channels

I'm trying to control a Tilt pan with an Arduino Uno. And the Sunrounder servo driver is used to do this, which comes with it's own capacitor out of the box. The pan has two Servo motors, that help ...
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0answers
33 views

Unusualy high fail rate with Adafruit Circuit playgrounds

I am on my 4th failed Adafruit Circuit playground, I can usualy program them a few times, like less than 10, then they become unresponsive. no amount of reseting, rebooting, bootloader re-...
0
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1answer
232 views

Undervoltage from solar panels

So i'be been toying with the idea in my head of creating a solar powered weather station with an arduino, two 6V 2W solar panels in parallel, two 5V USB battery packs, and an adafruit module which ...
1
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2answers
79 views

Partially clean a LCDScreen

I have connected an 16x2 LCD to my Arduino. It shows my Room Temperature and Behind that variable is the string "Celcius". Everytime the temp is diffrent than shown on the screen it updates the screen ...
0
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1answer
204 views

How to identify Adafruit Feather 32u4 via mac id/UUID/etc [duplicate]

I'm working with a couple Feather 32u4 devices and I've had success so far in setting them up as transmitters and receivers as well as hooking up one of them to a Featherwing Ethernet and talking over ...
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0answers
534 views

cannot get low power with Adafruit Trinket

I want to get as low power use during sleep as possible with an Adafruit Trinket. Based on results presented on various places in the internet (blogs etc), I expect to be able to go down to 50 - 100 ...