Audio not working on Rpi after using Neopixel - raspberry-pi4

When I use neopixel (WS2812B, 60 LEDs) on my Rpi 4B the sound from the Raspberry Pi itself stops working (the one i get from HDMI still works, but since I usually don't have a Monitor attached, I need an alternative). I use pulseaudio, which I already tried to make systemwide, but that doesn't seem to work. My OS is Manjaro Linux for RPi.
If you have any idea how to fix this, please tell me. Thanks in advance.

Related

Compilation error "reference to 'SerialUSB' is ambiguous" | on Arduino Nano 33 BLE Sense

I get this error when compiling a simple program on a Arduino Nano 33 BLE Sense (using a Mac). The sketch makes use of a library provided by Edge Impulse that uses "Arduino.h".
../Library/Arduino15/packages/arduino/hardware/mbed/1.1.6/cores/arduino/Arduino.h:128:16: error: reference to 'SerialUSB' is ambiguous
#define Serial SerialUSB
I have never seen this error before. What is causing it?
I had the sample problem and tried a lot to fix this.
I think the problem is at the version for the arduino nano 33 ble package.
Try downgrading the package for the arduino nano 33 ble to 1.1.4.
This was due to a change in naming in the Arduino Core for the Nano 33 BLE Sense (some more background: https://github.com/edgeimpulse/edgeimpulse/issues/927). Will be patched later today, just re-export your project to a new Arduino library and this will include the latest changes.

Arduino littleBits

I am trying to download code to my littleBits Arduino module on IDE software. I am not able to find the port whenever I am trying to download the image to the board. Is this an internal issue, or an issue with my Arduino board?
You need to check if the arduino serial driver is properly installed in device manager. If arduino serial port is available in Ports then you can download program through IDE
For visual help: https://www.youtube.com/watch?v=4HqXAmV_Ock
Make sure you have proper drivers for your board. In Arduino IDE make sure you are selecting the proper target ie, littleBits Arduino board.
If you are using the Linux system you can use dmesg to see if your system detected the device properly.
If you are using windows system use device manager to make sure your device is properly connected.
Has it ever worked? Did it work for a while then stop?
Reason I ask, I had a problem where the Little Bit suddenly stopped accepting new code. Whenever I tried to download, the Arduino IDE started reporting Unknown USB Device.
Turned out, we had bricked the device. I blogged my steps for recovery here.
Check tools>ports and see if any are available, try them all, (check
while the board is connected)
if none are available check device manager under com ports there should be your device listed if not the you need to reinstall the drivers.
also check if the board is connected correctly (i.e. the connection cord is working properly)

Arduino leonardo infinite uploading on windows 10

I'm trying to build a midi controller using an Adafruit Trellis and an arduino leonardo. When it comes to run the code, the uploading status freezes and doesn't complete. I've tried to run a hello world using both an arduinoleonardo and a uno but I still had the same problem. I've deleted the IDE, reinstalled it but nothing has changed. I think it's a driver problem but I actually don't know what to do.
Assuming your Uno is good (no defect), try to plug into a different USB port and try different COM #. Also make sure that you are selecting the correct type of Arduino.

ESP8266 module programming, usb port not defined

I am trying to connect a esp8266 wi-fi module via a usb ttl converter to PC, but the device manager is not showing any well established port for the given connection. The only thing device manager shows out is a "CP2102 USB to UART Bridge Controller" and hence Putty is not identifying the port.
Kindly help me out.
Screenshot:
First of all you need to install the drivers from here: https://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx
Then you need to make sure your power supply for the ESP8266 has an output of 3.3v.
You need to re-download the latest driver.
Mine was working perfectly fine for about 4 months and then out of nowhere it stopped working. (I suspect it stopped working because of some windows updates I did on my machine.)
I tried reinstalling with an older .exe install file and it wasn't solved. It wasn't until I actually re-downloaded the file again (from https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers) and then it worked!
Hope this helps!

No device found on ttymxc3 (Arduino IDE, Udoo)

I want to use an Arduino to control an LED on UDOOBbuntu. I'm using Udoo Quad and I'm following this example, but there is something wrong. here is an image. I removed the original Arduino IDE and installed Arduino, but it didn't work. Please help me. Thanks!
Have you attempted to go tools > port and select one of the ports in that menu? It seems like your issue is that the Arduino is looking at the wrong serial port.

Resources