Questions tagged [adafruit]

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Bridge Local Mosquitto MQTT broker installed on RPi with cloud MQTT broker

I was trying creating a bridge between the cloud broker (io.adafruit) and mosquitto broker which runs on my Raspberry Pi. I have successfully tested the local mqtt connection whereas connecting to a ...
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0answers
47 views

Wake up with external Interrupt from deep sleep mode (Adafruit Feather 32u4)

I have an Adafruit Feather ATMega 32u4. I want to put it into sleep mode and wake it up with pressing a switch as an external interrupt. This is what I tried so far and which worked: switching a LED ...
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1answer
46 views

Please help identify the positive and ground for BLE antenna

Please help identify the positive and ground for adding an external BLE antenna, after the chip antenna was removed. I am connecting an external antenna (not the removed one) to this Nrf51822 BLE ...
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1answer
28 views

What is the bluetooth library for Adafruit CLUE? Does one exist to download?

I couldn't find any information on Adafruit CLUE's bluetooth library or even examples of code. Could someone tell me if Adafruit CLUE even has a bluetooth library and where I can find it?
2
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3answers
521 views

Some basic questions about an accelerometer's unexpected behavior while tilted

I have an ADXL335 accelerometer connected to my Arduino. Here is some code that I am running based off a tutorial: ...
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1answer
67 views

Which pins of ATSAMD51 are used for I2C in Adafruit Grand Central?

I am trying to recycle my old Adafruit Grand Central board to use with Atmel Studio.I Adafruit website , I2C pins ( SDA , SCL ) are marked as PB20 and PB21 to be used as SERCOM-3 but in ADSAMD51 ...
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0answers
130 views

How to choose the right ferrite bead for an LDO

I'm trying to design a custom board that will include the FGPMMOPA6H GPS. Looking at the Adafruit integration of this GPS, I can see a ferrite bead on the output of the LDO (MIC5225-3.3). See below: ...
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1answer
100 views

How to use LBO on Powerboost 1000C as input for Arduino

I am using a project which uses an Arduino Uno and a powerboost 1000C. in the manual it says, LBO - not a leveraged buy out! this is the Low Battery Output. By default it is pulled high to BAT but ...
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1answer
155 views

SSD1306 128x32 OLED Initialization problem

I'm trying to run the SSD1306 128x32 on a NUCLEO board. But I can't get the thing to properly initialize. This is my initialization sequence. ''' ...
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2answers
61 views

Transferring Circuit to Solderable Mini Breadboard [closed]

I have a simple wifi temp/humidity sensor I've set up on an adafruit breadboard, and I'd like to transfer to a perma-proto type board, but the solderable boards I have are a slightly different layout ...
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3answers
3k views

Can breakout board still be used if the pad gets ripped out?

In a desoldering incident, my beautiful board ended up like this: Other side: The guy doing the desoldering says there is no chance this board is usable since he claims he ripped through the ...
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1answer
1k views

Adafruit SSD1306 Scrolling Function

So, there is a function in the Adafruit SSD1306 Library that prints a scrolling text. For examples, display.startscrollright(0x00,0x0F); will print a text scrolling towards the right. What are the ...
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1answer
43 views

Driving an Adafruit motor shield and a bluetooth module with Arduino Uno

I am creating a simple 4 wheel robot (BO Motors 200 RPM) with Adafruit Motor Shield and Arduino Uno V3. I am trying to use a Bluetooth module to control the robot. However, unlike Mega, I do not have ...