raspberry-pi3

Parallel Programming stuck on 4th instance of Concurrency::create_task call for serial devices

由 喜欢而已 提交于 2019-12-10 20:06:31
问题 I am currently developing a program where Raspberry Pi 3 will read contents sent by 4 Arduino (USB) devices through serial communication every 100ms. The UI gets stuck on the fourth call (serialDeviceIndex = 3) of Concurrency::create_task but if there are only 3 Arduino devices, the problem is not happening and the thread execution continues to the .then lambda body. Can you help me pin point what is the problem? Here's the function called when the connect button from the xaml devices is

How to Run pygame script using systemd service?

由 随声附和 提交于 2019-12-10 19:37:16
问题 I Wanted to run pygame script using systemd service for that followed these steps to run a pygame script using systemd service sudo systemctl daemon-reload sudo systemctl enable service_name sudo systemctl start service_name and rebooted the system after that my-service don't want to run a pygame script for more understading $ sudo journalctl -f -u rpi -- Logs begin at Thu 2016-11-03 22:46:42 IST. -- Mar 28 12:19:11 raspberrypi systemd[1]: Started RPi-Service. $sudo systemctl status rpi rpi

CORS in Azure function on Raspberry pi 3B

由 六月ゝ 毕业季﹏ 提交于 2019-12-10 12:24:09
问题 I have Azure functions V2 running on my raspberry pi 3 in a docker container. I can access the functions via the ip-address of the pi in the network. My problem is that I can't access it from my website because of CORS. If my Functions where running in the cloud, I could easily add CORS. Does anyone know how I could fix this on the raspberry pi? Update docker file or change files? 回答1: CORS is basically just sending the appropriate headers in your response. On Azure, this is taken care of by

Raspberry Pi3 BLE as Central device receiving just one packet per connection interval - gatttool/hcitool

由 若如初见. 提交于 2019-12-10 11:44:49
问题 i would appreciate if someone can explain one issue i'm experiencing with Raspberry Pi 3 model B acting as a Central device on a BLE connection with a Peripheral device. First, i successsfully connect both devices and enable notifications on the Central device using the folllowing hcitool/gatttool commands: sudo hciconfig hci0 up sudo gatttool --adapter=hci0 --device=XX:XX:XX:XX:XX:XX --adr_type=random --mtu=23 -I [][LE]> connect [][LE]> char-write-req 0x000c 0100 After that, i started

Raspberry Pi RuntimeError: Conflicting edge detection already enabled for this GPIO channel

由 依然范特西╮ 提交于 2019-12-10 10:49:50
问题 I was following a tutorial found here: https://www.linkedin.com/pulse/prepare-your-raspberry-pi-work-aws-iot-kay-lerch I have not even begun the internet part of it as I was having issues with the circuit. I wired my circuit just like it is shown in this diagram below using my raspberry pi 3. I then wrote the following python script as shown in the tutorial. import RPi.GPIO as gpio gpio.setmode(gpio.BOARD) gpio.setup(7, gpio.IN, pull_up_down=gpio.PUD_DOWN) def on_pushdown(channel): print

Initiate PWM on a Raspberry Pi runs in a SEHException

由 主宰稳场 提交于 2019-12-08 19:45:30
I am currently realizing a project in C # on a Raspberry Pi 3. On the Pi, Windows runs IoT Core in the latest stable release release (v.10.0.16299.309). When I initiate the PWM pins, the method runs in an exception (System.Runtime.InteropServices.SEHException: 'External component raised an exception.'). All rights are set and all releases are set on the Windows Fall Creators Update. Can someone be with me. Thank you. here the Code: private async void StartPWM() { GpioController gpioController = await GpioController.GetDefaultAsync(); if (LightningProvider.IsLightningEnabled) { try {

Asp .Net Core RC2 on Windows IoT and Raspberry Pi 3

由 点点圈 提交于 2019-12-08 15:56:19
问题 I'm trying to create an Asp.Net Core RC2 site running on a Raspberry Pi 3 using Windows IoT. I found the following tutorial: https://www.hackster.io/iddi/windows-10-iot-core-publish-asp-net-web-application-d9dcd4 But this is for RC1. So is there already a tutorial for RC2, did anybody do so already? And the Second question is, can you debug an asp.net core site on Windows IoT? Thanks for your help. Greetings Markus 回答1: As far I know, it's not supported yet. Like @davidfowl said: This isn't

How to capture audio in Raspberry Pi using Pyaudio python module without overflow?

由 丶灬走出姿态 提交于 2019-12-08 04:20:05
问题 The following code I tried to run it on Raspberry Pi 3 Model B which has a little big of capacity on it's memory, the problem that I'm facing with the code is that it runs sometimes: from os import environ, path import pyaudio from pocketsphinx.pocketsphinx import * from sphinxbase.sphinxbase import * MODELDIR = "../../../model" DATADIR = "../../../test/data" config = Decoder.default_config() config.set_string('-hmm', path.join(MODELDIR, 'en-us/en-us')) config.set_string('-lm', path.join

Sending commands to google assistant using script instead of mic

由 雨燕双飞 提交于 2019-12-08 03:08:27
问题 I have configured Google Assistant SDK in Raspberry Pi 3 and demo application is working fine. Is there any way to send “OK Google, Example Command” to Google Assistant SDK using Python script? Or it will only take input from Mic? I am planning to write tiny mobile application which will send commands to my Raspberry Pi google assistant application. 回答1: UPDATE : even if it is an old question, here is the latest update. It is now possible using the v1alpha2 version. The gRPC message

How to solve LIBUSB_ERROR_BUSY on Raspberry Pi (Debian) running Node.js

由 China☆狼群 提交于 2019-12-08 02:04:37
问题 I am running node.js on a raspberry pi 3 (debian). I have a little prototype project which gathers data from an ANT+ transmitter on my turbo trainer, which is being sent via a Suunto Movestick USB dongle. I am using the Ant-Plus node module to manage the ANT+ protocol and a script which outputs the data to the console and sends via REST API to cloud storage. Anyhow, cutting to the chase, it was all working fine, multiple process start and stops with no problems, until I inadvertently killed
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