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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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What are these 18 extra ports on the adafruit-gfx 2.8"

I recently got the Adafruit gfx 2.8" display, which works fine. It's quite obvious that it requires almost all of the pins on the UNO. However, I don't understand what are the 18 avaliable "...
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Adafruit feather helium integration

So I have an adafruit feather M0 LoRa 900 MHz and try to connect it to a helium hotspot (add to my helium console). For that I use the official helium documentation provided by helium and I get to the ...
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espShow() crashes every now and then in Adafruit NeoPixel/Adafruit_NeoPixel 2.cpp on ESP32

I face a crash in the Adafruit NeoPixel/Adafruit_NeoPixel 2.cppfile of the lib. According to the stack, the issue occurres in the file Adafruit NeoPixel/esp 2.c line 129 in espShow() which correspond ...
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Can't get Adafruit MusicMaker and Ethernet to work at the same time

Working on an IoT project. Environment: Adafruit Feather M4 Express Adafruit MusicMaker FeatherWing (amplified, this is a VS1053 at heart) Silicognition PoE FeatherWing (electrically compatible with ...
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0 answers
37 views

Transmit a LoRa trace using USRP B210

I am trying to use a USRP b210 in order to transmit a LoRa trace and receive it using a LoRa node device. For the setup, I am using Adafruit Feather M0 with RFM95 as the lora nodes. I have been using ...
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2 answers
107 views

What is the difference between SCLK and CLK pins?

Please do forgive me if anything in this question does not make sense, I am very new to PCB and Arduino. I am following a tutorial through where the person doing it is making a small data computer (...
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2 votes
1 answer
44 views

How to combine servo shield with peristaltic pump?

I am creating a project where I need 16+ (possibly up to 20) servos to open/close liquid flow through tubing, which in turn will be controlled by a peristaltic liquid pump (https://www.adafruit.com/...
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1 vote
1 answer
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Reading & writing a configuration file on an Adafruit Circuit Playground Express

I would like to store an application's configuration in a file stored on the Circuit Playground Express (CPX) flash. The application itself needs to be able to update the configuration file. Things I ...
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2 votes
1 answer
81 views

Why is the Adafruit splashscreen logo not displayed properly?

I'm working with a 128x64 Oled display. I have just installed the Adafruit library and I'm running some sample codes. I have not modified the sample code in anyway yet just testing if the oled display ...
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  • 23
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1 answer
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Using Arduino to allow continuous servo to go in the opposite direction

For my project I am using 6 continuous servos connected to an Adafruit Servi Shield. To run them I use ‘’’pwm.setPWM(0, 0, 1000)’’’ and then set a delay to run them for how long i’d like to, then run ‘...
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2 votes
1 answer
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Can this display's address be changed?

I need two displays hooked up to an Arduino MKR Wifi 1010, and I saw this video which shows how to do it: this video. I also would like to have a full color oled display about 1 inch big so I would ...
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-1 votes
1 answer
112 views

Can I configure an Arduino via NFC using PN532 with an iPhone as the source?

It seems clear that Apple has intentionally limited the possibilities with NFC, so I understand that I'm going against the grain here. However, I need to support Android and Apple for my device setup, ...
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  • 119
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2 answers
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Library the pulls ID3v2 info from MP3s

I'm using an Adafruit Music Maker with a TFT screen on my Mega 2560. I can pull ID3v1 data from the end of an MP3, but I'd like to get the ID3v2 data as I can then push the album cover art to the TFT ...
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2 votes
1 answer
44 views

How to install Adafruit motorshield library in arduino-cli

I need to install this library using the arduino-cli software. I don't know what name to use for the library. Using arduino-cli lib install <library_name> I have tried Adafruit_MotorShield, ...
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1 answer
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Mega 2560 with Adafruit Music Maker and TFT - Pin reroute

I'm building a custom headunit for my motorcycle using the Arduino platform. I wanted to try it as the modular nature of the board and shields looked very versatile. While there does seem to be plenty ...
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1 vote
0 answers
44 views

How to use an Arduino to play audio from an Adafruit Soundboard using audio file name

I'm trying to control an adafruit soundboard with my elegoo uno R3. I'm a beginner programer and I'm trying to get the soundboard to play a sound file by name when I press a button. I have confirmed ...
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1 vote
0 answers
32 views

Arduino UNO and PCA9685 - Problem with external power supply

I am totally desperate and hope you can help me. I've been building a project for a while where I have to control several servos. For this I bought some MG996R servos and a PCA9685 16-Channel Servo ...
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1 vote
1 answer
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How can I get a Faster boot with the Adafruit Feather SAMD21?

The Adafruit Feather SAMD21 takes about two seconds from power being supplied to when setup() starts running. How can I shorten that time so that setup() will run sooner? I measure this time using a ...
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  • 170
1 vote
1 answer
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FastLED and Adafruit Gemma M0 - Getting started

I just bought a Gemma M0 and I'm trying to use it with FastLED. There are several forums that discuss the same errors I get when I try to upload my code, but they all involve editing .h files, ...
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1 vote
0 answers
67 views

RTClib.h problem

In Library Manager RTClib and DS3231 work somehow with older versions. RTC time can picked only once and then it give bullshit. Using newest versions screen is empty. In picture first time is right, ...
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0 votes
1 answer
100 views

Capacitive touch on Adafruit Trinket M0 goes unstable when USB cable from laptop is disconnected

Note that to get to this point, I used much of the helpful information from the Post How to use capactive touch on Adafruit board in Arduino mode? I am using a Trinket M0 with the Arduino IDE with the ...
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84 views

How to correctly use SSL certs with the Adafruit SIM800H

I am trying to use a Adafruit Sim800H to connect to Azure using MQTT with an SSL certificate. My first step is trying to put a new SSL certificate onto the board. To do this I am using this example ...
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  • 111
1 vote
0 answers
75 views

Flash HEX onto an Arduino board

The scenario: I have built a device off an Adafruit nRF52840 and I need a way to deploy firmware updates. I have delivered the device to my end user and will need to periodically send him updates. I ...
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0 answers
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Issue displaying on Adafruit display when enabling GSM communication

I am trying to write to the adafruit display using Arduino MKR1500 when it is connected to the internet. The issue I am facing is when I add the code to connect to the cloud, the display stops working....
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1 vote
1 answer
514 views

How to fade LED in a defined time using FastLED

I'm using FastLED library, Arduino Nano and 5 addressable LEDs (WS2812B). I'd like to create the sequence in the image attached. (all in white color for example) I know how to turn ON each LED every 0....
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1 vote
0 answers
28 views

Driver configuration not showing the right numbers on the Graphics Test example's serial monitor for Adafruit IlI9341 library

I have a 2.8" Color TFT Touchscreen from Adafruit, and I'm currently trying to set it up. I've been following this guide to set up the screen. The screen powers on when connected to power, but it'...
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1 answer
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Adafruit Thermal Printer unwanted gradient

I have thermal printer from adafruit and when printing images I have problems getting a proper black. I tried playing with the dot print time and the dot feed time using the setTimes function, but ...
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1 vote
0 answers
60 views

How to use 5v and 12v addressable led strip together

Hi guys I’m new to this forum and also not much experience about led lights question already asked but didn’t get any detailed answer I want to know can I provide working data signal to 2 different 5v ...
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1 vote
0 answers
46 views

SD Card Library interferes with Adafruit

Im currently working on a datalogger that uses oled i2c displays and current sensors. Both of them uses adafruit libraries. To write the data, im using arduino's sd library, but somehow, the sd ...
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1 vote
0 answers
299 views

Calibrating Adafruit TCS34725 for RGB colors

I am new to Arduino. I am currently working on a project which requires color detection using the TCS34725 Adafruit sensor module. For the project, I need to calibrate the sensor with RGB colors. ...
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0 votes
1 answer
271 views

HX711 Ridiculous speeds

I'm using a SparkFun HX711 board and an Adafruit AdaLogger (M0) Featherboard. I have cut the trace on the back of the HX711 to get a faster data rate (should be about 80 sps). I did this by reviewing ...
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1 vote
1 answer
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Adafruit OLED 7 Pin Display - Abbreviations

I can't remember for the life of me how exactly I set up this screen in previous models, partially because the references I'm using in my code have different names from the pins on the Adafruit ...
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1 vote
0 answers
77 views

Adafruit soundboard with esp32

Board: ESP32 Development Board I am trying to get the adafruit soundboard code to work on my ESP32. I have installed espSoftwareSerial but I keep getting errors with their sample code. I receive ...
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  • 111
1 vote
0 answers
27 views

Servo make partial rotation and stop working automatically

I'm using this board in my robotic arm project: Adafruit PCA9685 16-Channel Servo Driver ( https://learn.adafruit.com/16-channel-pwm-servo-driver/using-the-adafruit-library) I've connected all of my ...
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  • 111
1 vote
0 answers
46 views

DHT-sensor-library-master

I only uploaded the library to check whether it has installed correctly. It's installed and i am having this error. Using library DHT-sensor-library-master at version 1.4.1 in folder: C:\Users\Mcniven\...
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1 vote
0 answers
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Adafruit CCS811 Air Quality Sensor

in my arduino project I use the Adafruit CCS811 Air Quality Sensor Breakout - VOC and eCO2, I need the references and sizes of these components, knowing that I have found the electrical diagram but ...
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2 votes
0 answers
215 views

Send sensor data through GATT with Adafruit Bluefruit

I have the BLE Module Adafruit ItsyBitsy nRF52840 Express and I want to send sensor values from a Hallsensor to my computer. I was able to have the right data checking with the Serial monitor. int ...
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1 vote
1 answer
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How do I set up communication between the "Seeeduino Xiao" and the "Adafruit Bluefruit LE UART Friend - Bluetooth Low Energy (BLE)"?

I've seen normal Arduino boards connecting to it no problem (Uno, Nano, etc.). I'm trying to connect it to my Seeeduino Xiao. It has UART compatible pins, so I'm fairly certain wiring isn't an issue. ...
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0 votes
1 answer
112 views

Error Compiling for board Arduino Nano while using Adafruit GFX

Whys is this happening to me?? I have to meet a deadline please help!! Here is my code. #include <SPI.h> #include <Wire.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h&...
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1 vote
1 answer
217 views

Use I2C to control one of three DS3502 Adafruit digital potentiometers on the same I2C bus

My teammate and I recently purchased a handful of DS3502 digital potentiometers (https://learn.adafruit.com/ds3502-i2c-potentiometer/pinouts) from Adafruit, and we'd like to be able to control them ...
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1 vote
1 answer
217 views

Configure Trinket M0 as I2C peripheral

I am trying to use I2C to communicate between my XBee3 (controller) and an adafruit trinket m0 (peripheral). I'm pretty confident I have the modules connected properly (trinket SCL/pin 2 to xbee SCL/...
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1 vote
0 answers
108 views

How do I make my motors speed change?

I'm using an Adafruit V1 Motor Shield for coding two 12 volt DC motors. In my code I'm changing the set speed, but the motors still seem to be going the same speed, which is really fast, and I want ...
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1 vote
0 answers
169 views

'class Adafruit_SPIDevice' has no member named 'endTransaction'

So what I have done is followed all of the instructions in the following link: https://learn.adafruit.com/adafruit-pygamer/setup and have managed to get all the way up to https://learn.adafruit.com/...
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1 vote
1 answer
534 views

Adafruit_Arcada' does not name a type;

I am trying to program an adafruit pygamer (which says it's compatible with Arduino). I have added the ZIP folder for the library into the library folder om my PC where all of my folders are supposed ...
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0 votes
1 answer
342 views

Why am I getting a "SendCommand was not declared" Error

#include <Adafruit_Fingerprint.h> #include <SoftwareSerial.h> #include <LiquidCrystal.h> uint8_t id; int getFingerprintIDez(); //pin #16 is IN from sensor (GREEN wire) //pin #15 is ...
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2 votes
1 answer
101 views

MQTT connection not being recognised in void loop()

I am trying to publish MPU 9250 readings in the Adafruit IO sending the data from ESP32. The WiFi connection is being established, but the code is not going inside the if(mqtt.connected()) inside the ...
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1 vote
2 answers
1k views

Finding Relatively Accurate Velocity Using an IMU

I am currently working on a project where I am trying to accurately find velocity in a handheld device using an IMU for about 30 seconds. I have been having major issues doing this because of large ...
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1 vote
0 answers
206 views

How to change the update rate in TinyGPS++?

I am working with TinyGPS++ library and Arduino-nano and I want to change the update rate. I worked before with Adafruit GPS and uses the below code for updating it. // Set the update rate GPS....
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1 vote
0 answers
300 views

NP532 doesn't detect NTAG213 tag

I'm using a PN532 module to read/write NTAG213 tags. They both should be working at 13.56 MHZ, and Adafruit should support these tags in their library. The Arduino Uno board and the module are ...
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1 vote
3 answers
240 views

How do i make my DC motors run simultaneously?

Im coding an adafruit motor shield for 3 DC motors to go forward & backwards, and so my concern is why only my motor3 is running the whole time and motors 1 & 2 are switching off meaning 1 ...
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