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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.

3
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1answer
409 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 ...
2
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1answer
2k views

Adafruit Huzzah espcomm_open failed

I recently bought an adafruit huzzah as well as a serial to usb cable to connect it to my computer running windows 10. I was able to get the board set up in arduino following the directions found here....
1
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1answer
56 views

How to get the weather kit with anemometer working using arduino (UNO)?

I tried to build a weather station with anemometer and My setup is, SwitchDoc Labs' anemometer kit (which is equivalent to sparkfun anemometer kit) connected to the grove weather-pi board with rtc ...
1
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1answer
102 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
109 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: ...
1
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1answer
370 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 ...
1
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1answer
3k views

Motor shield power from Arduino pro mini 5v RAW Pin 150mAh cannot run servo

linked to my old question, Pro Mini 5v with Adafruit motor shield v1 power sharing problems I figured out and use one 7.2v battery (6 AA cells), and link it with RAW pin to Pro mini and join its 5v ...
0
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1answer
407 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 ...
2
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0answers
750 views

Why won't Wifi Shield detect any networks? Even really close

I just purchased an Adafruit Wifi Shield CC3300 and strapped it onto my Arduino Uno board. I'm running this basic sketch that I found to test the functionality of the Wifi Shield: http://arduino.cc/...
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0answers
192 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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0answers
276 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 ...
1
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0answers
244 views

Wiring Feather Huzzah ESP8266 to Monochrome 1.3" 128x64 LCD

I'm new to Arduino and the pinouts for the Adafruit 938 LCD doesn't seem to match the pinouts that I looked up for the Huzzah ESP8266. Does anyone know the proper pinout for this display and the ...
1
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0answers
2k views

Turn on one by one the LEDs of a Neopixel rgb LEDs strip for each detection at the same distance from an Ultrasonic Distance Sensor (HC-SR04)

For this project I seek to create a counter of water glasses we drank throughout the day. I use for this an Arduino UNO card, a Piezo buzzer and a Neopixel rgb LEDs strip (5 LEDs for this test). ...
1
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0answers
135 views

Is something wrong with my Adafruit motor shield?

I think something may be wrong with my shield, as I looked at the other forums related to this question and still can not get help. I know that I can't run it from a 9V source by itself, as the ...
1
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0answers
77 views

Upload custom trinket firmware

I'd like to disable the trinket 10-second bootloader when powered up, so it will just begin running the program. I would still like to be able to press the reset button to re-program it. I found an ...
1
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0answers
445 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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0answers
144 views

Debugging arduino shield for varying voltage

I'm using this motor shield for arduino from adafruit. It says it can drive 4 DC motors with it. However, two terminals M3 & M4 (as marked in the image) seem to be supplying lesser voltage. To ...
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0answers
231 views

Adafruit Trinket 3v with LED matrix backpack producing error

I have been wanting to create a Arduino watch. I built the circuit with an Adafruit Trinket 3v and an Adafruit LED matrix backpack (8*8). When I try to upload this example code: /*********************...
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0answers
105 views

Refine Colorview Code

How would I refine this to only recognize red and green? I don't need the full functionality of this code, just the ability to distinguish between red and green, and output that respectively. I also ...
1
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0answers
921 views

Using Johnny-five API with RFID Controller Shield

Is it possible to use the Adafruit PN532 NFC/RFID Controller Shield with the Johnny Five API? I've searched the depths of google and I'm unable to find anything so far. If it is possible, how can I go ...
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0answers
863 views

Adafruit motor shield 1 and Arduino Pro Mini

Can any one tell me how to connect Adafruit motor shield v 1.0 with Arduino Pro Mini 5v 8 Mhz. Motor shield uses which pins as I want to replace my Arduino UNO to Pro Mini and need re-wiring. Tried it ...
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0answers
632 views

Sparkfun Red board and CC3000 shield not allowing multiple HTTP_GET requests.

I have a SparkFun Red board (Arduino Uno R3) with a SparkFun CC3000 shield attached. I am trying to post data to the "data.sparkfun.com" service in order to test a basic Wifi data logger. I am using ...
0
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0answers
18 views

Bluetooth gamepad via Adafruit Feather M0 Bluefruit BLE

I'm trying to build a Bluetooth-enabled gamepad out of an old Playstation 1 controller, using an Adafruit Feather M0 Bluefruit BLE. I've programmed the board as a Keyboard HID and everything works: ...
0
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0answers
10 views

Reading Multiple RFID tags / Reading and ignoring/holding the tag

I'm currently doing a project where ideally I will have multiple objects with RFID tags on them that are placed on top of a Adafruit PN532 RFID Shield connected to a Arduino Uno Wifi Rev 2. The idea ...
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0answers
33 views

ESP-01 responding to some codes not all ; like of ADAFRUIT MQTT?

I am Arduino Uno to upload code into esp-01 and this is code i using to send random values from my esp chip to Adafruit Mqtt server - ****************************************************/ #include &...
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0answers
27 views

Adafruit Feather ESP32 - GPIO power drain during deep sleep

I have an Adafruit Feather ESP32 whose GPIOs I use to control an external device. I don't want the device to drain the power of the ESP32 sometimes, so I set the GPIOs to INPUT. When I go into deep ...
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0answers
19 views

Arduino OLED Display strange output

I am trying to use the Adafruit SSD1306 lib with my OLED display for arduino but I've encountered an strange error. I am using the default example "ssd1306_128x64_spi" but the display is odd, the ...
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0answers
17 views

Adafruit Feather nRF52832 as a SPI slave

Like the title says, I am trying to configure the Adafruit Feather nRF52 as a SPI slave, who will receive information from a MSP430 microcontroller. I have found a few code examples that provide ...
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0answers
61 views

WaveShare EPaper Display and Adafruit HUZZAH32 ESP32 Feather Board

I'm trying to understand how I could use WaveShare EPaper Display with Adafruit HUZZAH32 ESP32 Feather Board. With these connections SDI/SCK -> MOSI SCK/SCLK -> SCK CS -> 15 DC -> 33 RST/...
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0answers
12 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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0answers
126 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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0answers
46 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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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 ...
0
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0answers
550 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 ...
0
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0answers
102 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
226 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 ...
0
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0answers
725 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
43 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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0answers
107 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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0answers
375 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 ...
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0answers
217 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 ...
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0answers
28 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 ...
0
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0answers
56 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 ...
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0answers
35 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-...
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0answers
585 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 ...
0
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0answers
163 views

Arduino Mega 2560 to Adafruit STMPE610 wiring

I'm having difficulty in trying to find the correct wiring between the STMPE610 to the Arduino Mega 2560? Q: Could someone please illustrate the correct wiring for i2c connection between the two ...
0
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0answers
283 views

SSD1306Ascii Library for Arduino

Im using SSD1306Ascii display library for arduino previously i was using Adafruit ssd1306 library , due to it occupies lot of space i switched to SSD1306Ascii library which is lighter , Is there a way ...
0
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0answers
325 views

Adafruit SSD 1306 with Arduino

At first i was using adafruit library for connecting adafruit ssd1306 128*64 display with arduino , display was working good, since that library was using too much space i decided to switch to #...
0
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0answers
356 views

Adafruit Trinket & Ultimate GPS & Google Earth Realtime

I'm using a 5v Pro Trinket that has an Adafruit Ultimate GPS connected and is connected over serial to my laptop. I am not using any fancy parsing code, I'm just letting the GPS spit out the raw data. ...
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0answers
14 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/...