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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7 views
Adafruit feather m0 wifi and Ble feather
I'm looking to get the adafruit feather m0 wifi and was looking to add the ble feather and oled screen also to the same setup. Has anyone ever stacked the m0 wifi, ble and oled together ? Can you ...
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2answers
19 views
Using MMA8451 accelerometer to count steps
I'm trying to use an Adafruit MMA8451 accelerometer to create a pedometer-type device that counts steps. I'd like to initiate a counter that says "if the x-axis readout is > some threshold, add 1 to ...
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0answers
16 views
getHostByName always failing to find a valid ip
I'm using an arduino Uno and a CC3000 wifi shield. I installed Adafruit library in arduino to get access to Wifi network. I'm currently trying to run some samples that comes with the library. It ...
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0answers
24 views
Controlling Adafruit Neopixel, function not displaying?
while I'm relatively new to the arduino/neopixel community, I'm fairly experienced with C programming and am confused as to what the issue I'm having here is..
I wrote a function to control my ...
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1answer
28 views
what boards have integrated USB charging?
I've been building wearables, using the adafruit trinket, which I love, its small size is easy to tuck away. but I hate having to unplug the battery to charge it every time. I wired in a SPDT switch, ...
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1answer
18 views
How do I output tone() and audioFX board output through a single speaker?
I'm building a BMX start gate controller. It requires a voice sample to be played ("Riders ready, watch the gate!") before playing a series of tones at very specific frequencies and intervals. After ...
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1answer
33 views
WaveHC Library Trouble
I posted this on the main Arduino forum, but no one has responded in 24 hours.
I'm trying to use the WaveHC library from Adafruit with a custom PCB. I am having trouble getting the SPI com to work ...
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2answers
42 views
How to analogRead() 2 seperate pins simultanously
I am trying to create a simple piano playback using a flex sensor, proximity sensor and a piezzo buzzer.
I want to have it so that when the flex sensor is triggered, a sound is played on the piezzo ...
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1answer
38 views
How to connect flora 2 and nrf8001 BLE Breakout
I'm trying to get the nrf8001 BLE Breakout polling properly on flora but Adafruit's tutorial and everything I've read and hunted around but I'm new to Arduino and not really sure how the ...
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1answer
34 views
Soldered AdaFruit Moto Shield V2 not running motor
This is my first soldering attempt. Attached image shows AdaFruit motor shield V2.3 soldered to an Arduino Mega. But only a subset of pins: explanation below.
The following code; taken from the ...
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2answers
32 views
neopixel not blinking
I have some neopixels, and I have one hooked up to my teensy.
I want to have the color change, when the push button is pressed vs not pressed. The LED will change colour when I upload the code, if I ...
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1answer
34 views
DC Motor Pinning the Ada Fruit Moto Shield with the Mega2560 R3
I picked up an AdaFruit Motor Shield V2.3 . The example on the site shows how to code the DC Motor connection
// Create the motor shield object with the default I2C address
Adafruit_MotorShield AFMS ...
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1answer
66 views
Errors seen whilst compiling with AdaFruit Motor Shield (“invalid library”)
Whenever I compile a sketch, change the Tools > Board selection, or open/close Boards Manager/Library Manager I get the following message in the console:
> WARNING: Spurious .github folder in '...
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0answers
41 views
Ooops, no LSM303 detected … Check your wiring!
History
I have an Adafruit 10DOF IMU Breakout which has been working on my Mega for some time. This morning my program did not run so I starting troubleshooting.
Scenario
I eventually plugged the ...
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1answer
37 views
Able to make continous music loop in Arduino and control the volume of the music with light sensor reading?
I'm new to Arduino and am planning on making a simple program in Arduino that will play and loop a sound file on the computer whilst controlling the loudness of the music based on reading from a light ...
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0answers
20 views
Is this compatible: Arduino Zero + Arduino WIFI101 shield + Adafruit Music Maker shield
QUESTION:
Can an Arduino Zero with Wifi 101 shield, and with Music Maker shield all be connected together ?
PROJECT:
I want to have the Zero use the 101 to receiver an MP3 stream by WiFi, and send ...
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1answer
52 views
Applause reactivity
I'm making a pretty basic light circuit and I'd like to have it react to applause or laughter, but NOT during regular speech, amplified over speakers.
I'm wondering if anyone has already made a ...
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0answers
91 views
How to attach Arduino MKR1000 to a shield meant for Arduino UNO?
I have an Arduino MKR1000 and need to interface it to an Adafruit Music Maker shield, which has pinouts for an Arduino UNO.
Maybe I'll have to attach female headers, and then jumper pins over.
Which ...
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1answer
45 views
Will this SensorHub work?
As a project I have to build a SensorHub with multiple sensors. I am relatively new to the Arduino and circuit world, so I need a little help.
The Goal is to build hub with multiple sensors and to be ...
3
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2answers
68 views
How can a USB keyboard emulator (TrinketKeyboard) type Unicode characters?
I've got an Adafruit Trinket microcontroller set up using this USB keyboard tutorial, and it works great.
I'd like to set up my project to type a shruggie ( ¯\_(ツ)_/¯ ) when I press a hardware button....
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1answer
49 views
Power measurement on Pins
as a project I have to build a sensor hub based on Arduino. I need a couple of sensors like gyroscope, barometer, etc. This is no problem so far. The problem arises when it comes to power measurement. ...
2
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2answers
75 views
Absolute noob looking for troubleshooting help
My 10-year-old son went to a "Robotics Camp" and came home with a non-functional Arduino robot. I figured it shouldn't be too much trouble to get it working. He swears he had it operating at the camp, ...
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1answer
41 views
Is Adafruit Arduino Feather M0 WiFi compatible with Adafruit Music Maker shield?
I want Arduino to receive MP3 by WiFi (from iPhone), and then send to Music Maker codec and amplifier.
I want to use Arduino IDE and library software from Adafruit for the Music Maker, so I need an ...
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0answers
117 views
Control two NeoPixels independently via serial
I'm trying to set up a series of LED status indicators using Arduino and NeoPixels. I'm using a Python script to read an API and send a command over serial to the Arduino. I've figured out how to do ...
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2answers
28 views
Problem with wrapping Adafruit Motor Controller function calls in a class
I'm working on an Arduino robot and I ran into a problem when reorganizing my code. I have an Adafruit Motor Shield v2.3 connected to an Arduino Uno. My robot can be controlled using a bluetooth ...
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3answers
74 views
Is the Arduino bootloader really the Atmel bootloader? Can I use Flip to upload?
I've been asked to do a small project using an Ada BlueFruit board. It has a ATMega32U4. The 32U4 comes from the factory with a bootloader pre-installed. I've never used an Arduino before, but I have ...
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1answer
43 views
Steppermotor+Arduino Mega+ Adafruit
I have 2 Stepper Motors (QMot stepper motor1 Amp, 5.3Ohms, 5.3 volts and 200 steps/rev.)
, which are connected to the Adafruit shield2.4, they are mounted to Arduino Mega, the motors pull generally 2 ...
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0answers
45 views
Ardupilot APM 3.1 to run DC motors using motorshield
I am working on APM 3.1 to make an autonomous vehicle. I checked on net most of people are using brush-less motors with esc which I know how to connect to APM and r/c receiver. I want to use separate ...
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1answer
29 views
Do I need more voltage to close this circuit?
I'm hacking together a RF-controlled garage door opener. I'm tapping the "receiving" end in to the push button wires.
When the two wires touch, it toggles the garage door motor.
I'm trying to ...
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votes
1answer
28 views
WiFi thermometers: save different location string as const across many devices
I've built a very simple WiFi thermometer out of an Adafruit ESP8266 HUZZAH breakout board and a TMP36 temperature sensor. I have it reporting the temperature over wifi to my computer which will be ...
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0answers
39 views
Force sensitive resistor data logging with Flora and BLE
I would like to swap out the light sensor in this Flora BLE data logging tutorial for a force sensitive resistor. https://learn.adafruit.com/datalogging-hat-with-flora-ble/overview
Can anyone help ...
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0answers
48 views
Similar to the BNO055 sensor?
I kept searching for the BNO055 sensor in my country. Unfortunately, I didn't find it, and I don't want to pay additional shipping fees. Is there something similar that I can use the adafruit ...
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4answers
91 views
Reduce 5v Trinket Pro to 3.3v?
Apparently these nRF24L01+ modules need 3.3v, but I've only got 5v Trinket Pros that I'm using.
How can I reduce the voltage to the RF transmitter?
Would a voltage regulator work? Specifically ...
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3answers
104 views
How to remove SD card safely
I’m constructing an arduino based sytem that uses a SD card and I’m looking for a way to safely remove the card from the system during operation. One way would probably be to turn of the arduino ...
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0answers
18 views
using a tessel RFID module with arduino uno
I have an RFID module that works with tessel based on RFID-pn532 shield from adafruit I was wondering if i could use it with my arduino uno.. here is the link for the RFID module http://start.tessel....
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1answer
36 views
Any way to not explicitly include dependent libraries?
When I am including the Adafruit_BMP280 library, Arduino IDE 1.7.10 complains that it wants all dependent libraries included:
Adafruit_Sensors.h
Wire.h
SPI.h
Isn't it possible to circumvent that? ...
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0answers
55 views
Motion triggers email or text [closed]
I am trying to create a prototype for a nonprofit.
Basically the Arduino 101 board would be able to send an email/text when it senses movement. It is equipped with an accelerometer which could ...
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0answers
31 views
Using Adafruit GFX Font with Goldelox Serial Library on 4D System's uOLED-96-G2
It took me awhile to get this work with Arduino, but I am trying to figure out how to make the Goldelox Serial Library which I have working, take a custom font from the Adafruit_GFX library and use it....
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2answers
125 views
Getting Firmata to control WS2801 LEDs
I am trying to control a strip of WS2801 LEDs through an arduino uno running firmata from Python on my laptop.
I've written some basic code based on adafruit's library here (from line 187):
from ...
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0answers
217 views
Arduino not communicating with adafruit fona SIM808 module
i have uploaded my code to the SIM808 board but the serial monitor is displaying "couldnt find FONA"
#include "Adafruit_FONA.h"
#define FONA_RX 9
#define FONA_TX 8
#define ...
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1answer
389 views
Find remote ip address TCP
Found this "Remote IP of TCP Socket" at:
https://e2e.ti.com/support/wireless_connectivity/simplelink_wifi_cc3000/f/851/t/380635
I am trying to log the remote ip address of a client. Using Ethernet, ...
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2answers
28 views
How to store a function in a constant?
I'm trying to do something to this affect:
const string first_color = strip.Color(0, 60, 0, 0);
With the intended outcome being that I could use first_color wherever I'd have used strip.Color(0, 60, ...
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1answer
43 views
How would I refactor this code, given how similar most of the lines are?
I have a set of buttons and a set of NeoPixel LEDs. There's lots of very similar constants (button1pin, button2pin, etc) so there's almost certainly a more efficient way of coding this.
Any ideas?
#...
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0answers
30 views
Does the arduino micro support the adafruit micro sd card breakout and the library?
Just a quick question. Does the arduino micro support the adafruit micro sd card breakout+?. Adafruit also has a library for this. Does the arduino micro support this library as well? I know some ...
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1answer
1k views
ESP8266 Arduino 2.2inch ILI9341 TFT library
I recently got one TFT LCD from aliexpress which supports SPI and uses ILI9341.
This is the one.TFT LCD
I have the ESP8266 EspressoLite 1 board, and I am using ESP8266 Arduino.
(https://github.com/...
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1answer
34 views
What would the total current requirements be for these items?
I'm using 5 of those 8mm NeoPixels + a 5V Trinket.
I'm trying to get a rough estimate of the current requirements that would have, assuming all 5 NeoPixels were running at full brightness "white" (...
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2answers
82 views
Is a 9v battery appropriate for a piezo and 1 LED?
I'm making a basic "door open" detector that, when a door is opened, it turns on an LED and then sounds an alarm via a piezo.
This is controlled via a 5v Adafruit Trinket.
Is a 9v battery the ...
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1answer
177 views
Second I2C address not accepted
I have set up 2 DHT22 sensors and 2 BMP280 sensors with an Arduino Uno SMD R3 board. The DHTs are working fine and are outputting correct temperature and humidity values to the Serial monitor. The ...
1
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1answer
42 views
Adafruit Flora V2 use onboard and external NeoPixels
I am working on wearable project using an Adafruit Flora V2, and for this project I need to use the onboard NeoPixel. I also need to use Neopixels that are attached to the D6 pin (is it a pin?). I ...
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2answers
475 views
Arduino and 2 Adafruit Fingerprint modules working together
I want to do a project with fingerprint access control. But my client wants one on both sides of the door (inside and outside). Now I am using this product Adafruit Fingerprint module but I don't want ...
