Unanswered Questions

4,154 questions with no upvoted or accepted answers
10
votes
1answer
2k views

Update Dynamically Tkinter Widget Scale from Arduino Ports using python and firmata

I'm having trouble trying to get Arduino digital ports values and set these values into a Python Tkinter Widget Scale. I'm using Python and Arduino with Firmata. I'm able to access my arduino board ...
4
votes
2answers
684 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 IMU ...
4
votes
1answer
1k views

Leonardo-based tachometer?

I'm new here. I'm not a native speaker, so pardon my English. I just received my Arduino Leonardo today. I tried some basic calculations and stuff like blinking and LCD interfacing. Its interesting. ...
3
votes
0answers
258 views

Ultrasonic Flowmeter Using TDC-GP22 and Arduino Uno

I'm working on a project of Ultrasonic Flow Meter with TDC-GP22 using Arduino UNO. I used the library of leokoppel In my code,the configurations of the registers are copied from the Application Note ...
3
votes
0answers
131 views

What does “Update of OCR1x at” mean in the WGM table of ATMEGA328?

I just finished a reading a couple of online guides on how to use timer registers with pulse width modulation, so I'm still new to its concept. When I looked in the ATMEGA328 specification sheet, I ...
3
votes
0answers
915 views

Unable to upload sketch using Platformio (but Arduino IDE works)

I am using an Arduino Nano (Clone) which I was programming with the Arduino IDE (Version 1.8.5 on Mac OS X 10.10.5). Using the Arduino IDE I need to re-plug the Nano before uploading, but after doing ...
3
votes
1answer
1k views

Flash String Helper object as variable

So I have a Bunch of commonly used char arrays to build commands in my library. So to preserve memory, I have them put into flash, via PROGMEM ext, typedef const char PROGMEM ProgChar; ProgChar AT[] =...
3
votes
1answer
2k views

Encoder + Bounce2 Library

I am working towards debouncing my keyes rotary encoder using the Bounce2 library found here ( https://github.com/thomasfredericks/Bounce2 ). I believe the problem lies in my code as there isn't much ...
3
votes
0answers
734 views

Using CLion as Arduino IDE — Cannot find Libraries

I'm having a problem using CLion as Arduino IDE when integrating 3rd-party libraries: Here is the CMakeList.txt cmake_minimum_required(VERSION 2.8.4) set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/...
3
votes
0answers
2k views

Non-blocking MQTT library

Are there any MQTT libraries that do not block while connecting? I'm currently using PubSubClient, and the connection part contains this code: https://github.com/knolleary/pubsubclient/blob/master/...
3
votes
0answers
1k views

Converting Arduino Uno with Ethernet Shield sketch for Arduino Yún

I'm new to the Arduino Yun and I'm trying to convert a sketch written for the Arduino Uno with a Ethernet Shield. The sketch does HTTP posts to Azure Mobile Services. I've added in the Bridge.h and ...
3
votes
2answers
1k views

RTC interrupts and coin batteries

Summary I'm having problems with my RTC draining its coin cells quickly - fresh batteries are drained in a few months. The RTC is set to signal an interrupt every 5 minutes, and I wonder - if there ...
3
votes
2answers
2k views

Atmega328P-PU: Programmer is not responding

Few days ago, I built my own custom Arduino on the breadboard. It is built according to tutorial on http://www.crash-bang.com/resource/breadboard-arduino/. The Atmega328P-PU is already burned with the ...
3
votes
1answer
491 views

Can I reuse crystal frequency of Arduino?

If I use some IC which requires clock frequency like 16MHz, can I take one from Arduino? Or this it too high frequency to travel to neighboring board?
2
votes
0answers
28 views

Start VL53l0X measurement failed

The initialization of the ToF fails with this code. I'm trying to frankenstein it with Radiohead RFM69, so far no luck. // rf69_reliable_datagram_client.pde // -*- mode: C++ -*- // Example sketch ...

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