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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21 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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22 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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11 views

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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27 views

Market Research - 4G Capable Arduino Module [closed]

Not sure if this belongs here, if there's a dedicated place I'll happily move this thread over there. Like many people I have had issues with the 3G board from Adafruit ( https://www.adafruit.com/...
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38 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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29 views

AT42QT1070 TOUCH SENSOR SENSITIVITY INCREASE

i AM USING AT2QT1070 TOUCH SENSOR IN STANDALONE MODE. HOW CAN I INCREASE THE SENSTIVITY OF THE CAPACITIVE TOUCH PNS. i NEED RANGE BEYOND 7MM?
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1answer
28 views

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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1answer
23 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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67 views

Adafruit IO and esp32

If you have some time I would need some help. I'm using esp32 wroom and Arduino IDE, and I have a problem with practically all of the examples simply because esp never connects to the IO. At first, a ...
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37 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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58 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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49 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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69 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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1answer
104 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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1answer
142 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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1answer
44 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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61 views

Can a 0.2V voltage drop (i.e. from 5.0V to 4.8V) cause Arduino to stop working?

I want to log wind speed, using adafruit anemometers (https://www.adafruit.com/product/1733) at three different levels. For this, I have connected an Arduino UNO with an SD logger shield (Shield ...
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2answers
116 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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50 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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122 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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3answers
125 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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52 views

Why doesn't LCD 16x2 work with fingerprint sensor code?

When I separate fingerprint code and LCD code it works fine. sensor read 6 templates which I already stored 6 fingers ID. When I combine the code it read 0 templates. #include <Adafruit_Fingerprint....
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1answer
25 views

Can't change pins in AM2320 code, types mismatch

I took a simple A2320 temperature sensor and connected it not to A4/A5, but to A1/A0 pins. SDA => A1, SCL => A0. (In C code they are number 15 and 14). But I can't call the library to take ...
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1answer
68 views

Pass Color to a function without using a specific Adafruit_NeoPixel

I'm initializing my strips as an array: // Declare NeoPixel strip array: Adafruit_NeoPixel strip[] = { Adafruit_NeoPixel(LED_COUNT[0], LED_PIN[0], NEO_RGBW + NEO_KHZ800), Adafruit_NeoPixel(...
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75 views

Adafruit_LEDBackpack library interfering with analog input reading

I'm trying to do something I think would be simple. I'd like to read the input of a electret microphone board and update the Adafruit 24-segment LED Bar Graph. I got each individual item working ...
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1answer
139 views

I want to create 10 levels with one button but this code shows only level 1?

#include <Adafruit_NeoPixel.h> const int PIN = 4; const int NUMPIXELS = 10; const int BUTTONPIN = 6; int buttonState = 0; int PINState = 0; int level = 1; int dt = 100; Adafruit_NeoPixel pixels(...
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58 views

Can I control an Adafruit Trinket M0 from a computer [closed]

I understand that the Adafruit Trinket M0 isn't an Arduino, but I figured it might still be appropriate here. I'll keep it simple. I have an Adafruit Trinket M0 that will be used to control an RGB led ...
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0answers
42 views

AFMotor.h Throws Multiple Errors

I'm trying to get AFMotor.h working on an Arduino Uno Wifi Rev2 with a L293D Motor Shield. However, when I install the library (regardless of whether I do it using the in-built library manager or by ...
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1answer
29 views

iterate through 8 thermocouple sensors (MAX31856)

I have 8xMAX31856 and I am trying to use the Adafruit library. Instead of writing all 8 thermocouple channels each time in code (and wasting memory), I want to store the objects in an array and loop ...
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90 views

Adafruit/Arduino SAMD BSP package and adding SAME51 compatibilty

I am trying to make a SAME51 variant of an arduino board, in the end I would like to have an arduino compatible board, BSP, and library for controlling canbus. I have already gone through some things, ...
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1answer
74 views

Arduino fingerprint Scanner stop loop after enroll or delete

How can I stop the loop when I enroll a fingerprint to the module? The loop is stuck in enrolling fingerprint even it was already done. The result I want was after the enrollment of fingerprint, it ...
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0answers
22 views

Adafruit IO + Esp-Now

So i am using adafruit io and esp-now on an esp32 to recieve voice commands from the internet and sensor values from another esp32. Independently, they both work quite fast but together the esp-now ...
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1answer
176 views

Cannot successfully implement singleton

I have spent the better part of today trying to figure out why I can't get this to work... I have this project where, because of previous design considerations, have implemented a singleton class that ...
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1answer
121 views

Is it possible to use Adafruit's Circuit Playground Express's 2MB storage in Arduino IDE?

I understand that the extra 2MB of memory is for circuit python. However, I wouldn't mind having access to 2MB of storage and using the Arduino IDE/low level C to access it. Is that possible? If so,...
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1answer
797 views

Trying to understand AccelStepper constant speed

I'm starting to learn the AccelStepper library for controlling stepper motors for a project I'm working on. I'm able to get the stepper motors running with the basic examples that use acceleration. I ...
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2answers
305 views

GPS date and time not displaying correctly in Arduino Uno,NEO6M GPS module

I am learning how the Arduino and GPS module work so I can apply it to another project. My components are an Arduino Uno, NEO-6M GPS module, and a Adafruit 1.8" TFT display. The code did not work ...
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1answer
226 views

How to use capactive touch on Adafruit board in Arduino mode?

I have a Trinket M0 which has three pins capable of capacitive touch, A0, A3, and A4. When using CircuitPython on these boards you can use the CapTouch Library. But as far as I can tell this does not ...
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33 views

Can anyone find out why when I run this code for a GPS and BME680 sensor I have no errors but nothing happens

Here is the code #include <Wire.h> #include <SPI.h> #include <Adafruit_Sensor.h> #include "Adafruit_BME680.h" #include <SoftwareSerial.h> #define BME_SCK 13 #define ...
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0answers
14 views

Adafruit v2.3 Motor Shield Initialization Failure

I would appreciate any help solving this as I have spent several hours trying to debug. My code seems to stop when I get to the initialization of the motor shield. motorShield.begin(); #include <...
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1answer
130 views

Trying to draw a bitmap to an LED matrix only draws the left half

I'm EXTREMELY new to Arduino and fairly new to programming as a whole, but I thought it would be fun to try and write a program that draws arbitrary 1-bit bitmaps to an LED matrix using the Adafruit ...
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1answer
72 views

Arduino Atmega32U with nRF51 BLE by Adafruit limited to 5 second update rate?

Would like to ask for assistance with the code below. It's the Adafruit Bluefruit Atmega32U LE module with Adafruit's Arduino IDE example "heart-rate monitor" sketch. The code uses the hardware SPI ...
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0answers
335 views

Arduino Nano 33 BLE work with its Bluetooth and GPS synchronously?

I am using Arduino nano 33 Sense BLE in which I want GPS to run and display its location . The GPS module which I am using is Adafruit GPS. I want both Bluetooth and GPS to run synchronously. But only ...
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1answer
76 views

With the press of a button, I need to play an intro sound file, then one of 50 other sounds in order, each time a button is pressed

I need to play an intro file and one of 50 different files after it in order each time the switch is pressed, with a short delay between the intro and next file. For example let's say the intro is ...
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0answers
31 views

Need help Coding Adafruit v1 motor shield for 3 DC motors [duplicate]

My project is that I am building an animated (singing, dancing, head turning, and arm waving) snowman. I have 3 DC motors for individual functions that are to be run via Arduino Adafruit V1 card ...
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1answer
21 views

Does Adafruit PowerBoost 1000 Charger support data transfer?

As the title says - Does Adafruit PowerBoost 1000 Charger support data transfer? I mean that if I connect USB on one side to PC and Arduino on other side - can I still program it and get serial ...
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1answer
292 views

Load Adafruit GFX bitmap fonts on desktop for pixel-level design

I am designing UI for 160x128 ST7735-based TFT display which will be displayed using Adafruit's GFX library (and the driver in Adafruit_ST7735.h). I am using the default bitmap font (custom fonts don'...
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364 views

STM32F103 (Blue Pill) with stm32duino + BME280 + SSD1306 strange behavior

I'm going crazy trying to understand some strange reads from BME280 sensor. With this code: #include <SPI.h> #include <Wire.h> #include <Adafruit_GFX.h> #include <...
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1answer
375 views

How to create and edit fonts for the Adafruit GFX library?

I noticed that the TomThumb.h font included in the Adafruit GFX library has characters that have different widths, which is a problem for me because I'm doing text processing that requires characters ...
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1answer
121 views

Adafruit motor shield v1 Need help Running 3 DC motors simultaneously?

My project is that I am building an animated (singing, dancing, head turning, and arm waving) snowman. I have 3 DC motors for individual functions that are to be run via Arduino Adafruit V1 card ...
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2answers
29 views

Adafruit Metro Mini FTDI chip overheating

I have an Adafruit Metro Mini board that I am using. After soldering the board and accessories to a perfboard the FTDI chip is overheating, the COM port will not show up on the PC, and the 3V pin does ...

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