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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
27 views

Trying to power multiple servos at once using a Arduino Mega

Recently I have been trying to do a project for my end of year project, it involved making a humanoid arm. I am still a newbie at these things, I usually have my friend do the wiring, but since he ...
0
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1answer
12 views

How to drive N channel gate correctly from Adafruit Feather pinout?

I am learning how to create a soft latch power switch, using an N channel mosfet. Currently, I have this: simulate this circuit – Schematic created using CircuitLab The idea is (so far) that ...
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0answers
20 views

Can I control the speed and direction of 4 brushed dc motors with arduino uno and shield? [duplicate]

I want to use the arduino uno and the Adafruit Motor Shield v2. I'm looking for the cleanest set-up to control 4 DC brushed motors. I want to make all the motors spin CW at the same speed ...
0
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1answer
26 views

Can I control 4 DC Brushless motors with arduino uno and Adafruit motor shield? [duplicate]

I need to control 4 DC brushless motors. I have no experience with arduino or coding. After some research the cleanest setup seems to be using the Adafruit motor shield, however the motors I'm using ...
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1answer
44 views

Did not find fingerprint sensor :( Arduino Mega 2560 Adafruit Fingerprint Sensor

I'm getting the following error when I try to enroll fingerprints using the Arduino Mega 2560 microcontroller along with a Fingerprint Scanner: Did not find fingerprint sensor :( The exact devices ...
0
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1answer
49 views

noisy output lines when waking up from a sleep

Using code similar to these examples from AVR https://www.microchip.com/webdoc/AVRLibcReferenceManual/group__avr__sleep.html my program causes my Adafruit Feather 32u4 to often sleep. When the ...
0
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1answer
31 views

Cannot get pins on esp 8266 adafruit wifi module to read HIGH on pin 15

I have an esp8266 and I cannot get the value to read HIGH when 3.3v is applied to directly to pin by hand. I have an Arduino Uno powering the esp8266. It connects to the WiFi like it should, and now ...
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0answers
9 views

Capturing SBAS GPS packets

I have an Adafruit Ultimate GPS using a PA6H module (datasheet) with PTMK command packets (command set sheet). I have it connected to my PC via Arduino and want to be able to read the SBAS data (...
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2answers
130 views

Arduino NANO hardware SPI not working

I have an Arduino NANO clone and a 2.4" ILI9341 TFT display. The VCC and LCD pins of the display are connected to the 5V pin of the board. The GND to the GND. All the logic pins are connected to ...
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0answers
39 views

Adafruit Feather M0 Basic update bootloader

I bought a Feather M0 Basic from a reseller Lawicel however I'm missing the UF2 boot feature. When I press the reset button two times I just get a serial and have to program circuitpython using Bossa....
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1answer
29 views

How to add if condition with RFID Example

Using a Arduino Mega 2560 and PN532 NFC/RFID module, I want to be able to scan a card and see if it's value is (0xF0, 0x21, 0x5D, 0xA7). It should print "accepted" in the serial monitor. However ...
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1answer
23 views

How can I call the constructor of a Class after it called once? [closed]

I have a problem with Classes. I have a bunch of code, that code is uses Adafruit MQTT FONA library. I call the Class for make new Instance and Connect to specified server with this code; ...
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1answer
29 views

Data not writing to SD Card on a Feather M0

I'm trying to write a sketch that will pull data from a BME280 and ADXL345 using the I2C protocol and then write that data to an SD card. Using different sketches I've found online I got something ...
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2answers
33 views

ESP8266 feather huzzah wiring for MFRC522

I'm trying to wire the mfrc522 and the huzzah but i can't seem to figure out the rst pin. I found the pin out diagram but it doesn't show or idk how its labeled as.
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1answer
15 views

Arduino Adafruit playground: Adafruit_CPlay_LIS3DH.cpp:27:35: fatal error: Adafruit_CPlay_LIS3DH.h: No such file or directory

I've tried installing the Arduino Adafruit playground but came across the same error. sketch\src\Libraries\Adafruit_Circuit_Playground\utility\Adafruit_CPlay_LIS3DH.cpp:27:35: fatal error: ...
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0answers
27 views

Lora configuration across devices

I cannot find a conversion chart to understand how to configure my RFM95 correctly. For example, I am trying to get an arduino with an RFM95 module to talk to a FiPy lora module. The FiPy to another ...
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0answers
48 views

powering Feather with 5vdc into battery connector

I'm incorporating a HUZZAH32 (part of Adafruit's Feather line) into a small system, where it will be powered from a 5vdc power source. The obvious way to connect the 5vdc is to the USB pin (the 5v pin ...
0
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1answer
65 views

Adafruit Trinket M0 persistent storage?

I am using an Adafruit Trinket M0 to program a small game and would like to save the game state every so often. I am programming it through the Arduino IDE as the chip does not have enough space to ...
0
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1answer
56 views

How to change speed of multiple servos acting at the same time with PCA9685 module?

I'm using the PCA9685 module with its Adafruit library. In my code I have one object of the servodriver class that has 14 channels (controlling 14 servos basically). void Positioning(){ ServoDriver....
0
votes
1answer
33 views

Quaternion values from BNO055 not available

I am trying to obtain Quaternion values from a BNO055 connected to ESP32-PoE board by Olimex. Code #include <Wire.h> #include <Adafruit_Sensor.h> #include <Adafruit_BNO055.h> #...
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2answers
107 views

Get accelerometer values from BNO055 using adafruit's Unified Sensor Library

If I understand correctly using the Adafruit_Sensor one can extract information from the sensor specific information. These sensors are currently mentioned in the README. I am using the BNO055 for two ...
1
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1answer
180 views

After restoring the BNO055 offsets to the sensor the calibration values are all 0

Board: ESP32 Script: restore_offsets.ino from Adafruit's BNO055 library The only difference is I am storing the information in ESP's NVS using the Preferences Library Code #include <Wire.h> #...
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1answer
66 views

BNO055 restore offsets sketch from Adafruit does not make sense

The restore_offsets sketch from Adafruit BNO055 In some way does not make sense. I am using an ESP32 and storing the offsets of BNO055 in its NVS (non-volatile storage). Steps I start calibrating ...
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3answers
55 views

backup battery for FeatherWing DS3231, RTC

I am working with slightly modified example code for the Adafruit FeatherWing DS3231 RTC (real time clock) board. The DS3231 chip itself is from Maxim. Since the cell is described as a "backup battery"...
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2answers
56 views

GPS Short distance calculations, accuracy limitations for 1-30 meter distance [closed]

I am a total beginner in the field of GPS, and this is actually my first post. But, I have been looking into some of your questions, and especially the ones for short distance calculations, and time ...
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2answers
135 views

How to set CS pin on Beetle BLE/Bluno Beetle to Adafruit SD Card Breakout - Initialization Failed!

Hi I have a Beetle BLE (https://www.dfrobot.com/wiki/index.php/Bluno_Beetle_SKU:DFR0339) and I am trying to connect an Adafruit MicroSD card breakout board+ (https://www.adafruit.com/product/254) via ...
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votes
1answer
330 views

“exit status 1” error when invoking “useInterrupt” method [duplicate]

for context to this post you can catch up on this post I am working with an Arduino Leonardo and Adafruit Music Maker shield. I am trying to use the startPlayingFile method via the interrupt pin ...
1
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1answer
71 views

Blynk app, DotStar bluetooth control code help

This is my setup: Arduino Mega; HM-10 bluetooth module (bought off ebay, so not sure if genuine but works); Adafruit Dotstar addressable LED strip; iOS Blynk app; Hardware-wise, everything is ...
1
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1answer
86 views

Adafruit Huzzah ESP8266 Battery Power issue

I'm trying to connect a ~5.5V (2 x 3V coin cells in series, but their voltage drops a little) to the VBat (or V+) of my Adafruit Huzzah ESP8266 module (not the black Feather one, the smaller blue one: ...
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1answer
60 views

eclipse photon with cdt-arduino plugin can't upload sketches

i've recently decided to give eclipse-photon-cdt a shot. i use it with the built in arduino plugin, downloaded my feather m0 board config and tried to upload an empty sketch. failed, the console shows ...
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2answers
82 views

Stacking 3 of the same shields on top of each other and instructing them in sync

Context: I have an audio track separated into individual channels grouped by frequency and speaker location. I need to play all three of these channels simultaneously and perform instructions like ...
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1answer
23 views

How we can implement the interrupt? [closed]

I want to implement the Interrupt on the Adafruit_RGBLCDShield Select button to start/stop the data logging?
0
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1answer
11 views

How to share/Reassign analog pin for two Adafruit libraries for two adafruit hardware

I'm attempting to use the Adafruit BMP180 and Adafruit 16x2 RGB LCD Display together on the same Arduino Uno R1. Both the pieces of hardware and their libraries use Analog Pin 4 and 5. Is there any ...
0
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1answer
86 views

Unable to Configure MQTT Client ID using Adafruit MQTT Library

I am utilizing the MQTT library that Adafruit has created, located here, and the library itself works wonderfully - however I am finding myself unable to edit the Client ID or configure the PINGRESP. ...
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2answers
100 views

How do I read addresses on multiple DS2413 1-Wire GPIO Breakouts, using the Adafruit sketch?

I am using three DS2413 1-Wire GPIO Breakouts from Adafruit connected to an ESP8266. I tested the DS2413 breakouts using their example sketch and it works fine for just one DS2413. But I cannot ...
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0answers
13 views

Interfacing STM32F401 Discovery Board with Ultimate Adafruit GPS Module

After having successfully tested my GPS module with my Arduino UNO, I'm looking to do so with the Discovery Board. The connections seem a little puzzling, as in I can't understand if I need male/...
0
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1answer
94 views

Parsing example code in Adafruit GPS library with Ultimate Adafruit GPS

I've synced my Uno with the Arduino IDE and I'm using the below code to get the GPS coordinates. // Test code for Adafruit GPS modules using MTK3329/MTK3339 driver // // This code shows how to ...
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vote
1answer
53 views

Adafruit Feather 32u4 FONA KEY Pin

I received a Adafruit Feather 32u4 FONA as a gift and have read the great, comprehensive document Adafruit put have put together surrounding pinouts, examples etc for the board. I am having issue ...
0
votes
1answer
735 views

ESP8266 light sleep - can't wake up

I am attempting to implement a light sleep mode on an esp8266 (feather huzzah) which, when a button is pressed, wakes the system up so that it can continue its normal task. I cobbled together some ...
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0answers
36 views

Grounding analogue signals through ads1115

Quick question - I have some pretty expensive gas flow sensors outputting a 0-5V signal, which need at least 2.5 KOhms minimum load. Can I connect them to the Adafruit ADS1115 breakout (ADS1115 chip, ...
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2answers
54 views

Too many amps for Step motor

I have an adafruit motor shield and attached the Nema 17 stepmotor. Now the big problem is trying to power it without it overheating. I was originally using a 12v 6a power supply but quickly switched ...
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0answers
29 views

Adafruit Feather unable to upload code

I am using Adafruit Feather RFM69HCW Microcontroller. I am having difficulty uploading code in any Adafruit Feather boards. We have a project that is live on the field and it needs code changes. I ...
1
vote
1answer
571 views

Schematic for the adafruit motor shield v2.3

I am trying to locate a schematic for the Adafruit motor shield v2.3. It has many ports and currently I have found little to no explanation of what is on the board. I located this picture which ...
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2answers
172 views

Understanding how to power objects with a relay (featherwing, feather huzzah)

I am trying to learn how to control a relay to power various household objects. I bought a power relay shield for an adafruit feather huzzah, and I have just set up the arduino blink sketch to provide ...
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2answers
120 views

Arduino Switching Between Loops IR Remote

I've been working on an LED strip project. However, I've come to a stand still at the moment. Within the program I am wanting to assign different lighting effects to each button on my IR remote. I am ...
1
vote
1answer
445 views

Increase sample rate in ESP32 board

For my final project on the university as a Systems Engineer, I'm working on a "electronic stethoscope", which is giving me a lot of headaches. I bought a Adafruit Feather ESP32 Huzzah (https://learn....
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0answers
478 views

Can't get I2C + SPI working on Wemos D1 Mini Pro

I've been struggeling allday to get I²C and SPI working on the same time on my Wemos D1 Mini Pro, i want to use a BME280 + the Wemos D1 Mini 1,4' TFT Shield. If i comment one or the other out, the ...
-1
votes
1answer
141 views

Arduino SocketIO library not working over HTTPS

I am currently using this Socket.io library to be able to send data from the Adafruit Feather HUZZAH (based on ESP8266) to my NodeJS server. It works like a charm on my local webserver, never failing ...
1
vote
1answer
58 views

Arduino Uno with Adafruit CC3000

I am using Arduino Uno with Adafruit CC3000 wifi shield to connect to the internet and get data for Arduino. Everything works fine but I can't figure out how to use HttpClient library. The code is: #...
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2answers
55 views

Is an atmega 2560 board compatible with the Adafruit Trellis?

I want to build a custom midi controller for my computer, and yes, Adafruit has a mini Untz project. For my purposes, I need more analog inputs than the Leonardo, and the only other option I can find ...