Hi all
I have been trying to get my TV ambient lighting working for nearly 2 years now, I previously only just managed to get the WS2812B working with Arduino but it suddenly stopped so I gave up on it – then I was told APA102 is a better LED & can be controlled directly with the RPi so I bought it & connected it up but still have no luck – I only get 1 LED lit up & that’s it, I feel like jumping off the cliff so any help would be most appreciated.
This is my set up
• DC 5V 20A 100W Universal Regulated Switching Power Supply
• 1x LED Strip 5m APA102 60LED/M LED
• Digital video audio HDMI to AV CVBS Converter Support 4Kx2K L/R stereo NTSC PAL
• Easycap USB 2.0 VHS VCR to Win PC DVD Video Audio Converter Grabber Capture Card
• Raspberry Pi 3 Model B+ B Plus
• HDMI switch
- I have the latest version (2020-11-19-HyperBian-lite) image installed (I think Beta9 image) on RPi
- I have connected the RPi pin 19 to LED’s Green data & pin 21 to LED’s Yellow data pin (in fact I swapped them around & no change)
- I have also attached the Pi pin 34 (GRD) to the power supply cable’s -ve
- I also have a capacitor across the power input to the LEDs in one end only
- I have connected both ends of the LEDs to my power supply (1 has the capacitor the other doesn’t)
I have checked the SPI & its enabled & working
pi@HyperBian:~/spi_test/spidev-test $ ./spidev_test -v
spi mode: 0x4
bits per word: 8
max speed: 500000 Hz (500 KHz)
TX | FF FF FF FF FF FF 40 00 00 00 00 95 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F0 0D | ......@....?..................?.
RX | FF FF FF FF FF FF 40 00 00 00 00 95 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF F0 0D | ......@....?..................?.
Well I need to get the LEDs working first as there is no sign of life but One other thing – my video capture doesn’t show anything either but it used to work – I get a green screen or Grey flicker – I changed from Auto to PAL & still nothing but its recognised as below:
pi@HyperBian:~ $ lsusb
Bus 001 Device 004: ID 1b71:3002 Fushicai USBTV007 Video Grabber [EasyCAP]
Bus 001 Device 005: ID 0424:7800 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
My Config File attached
I appreciate any help you can give me to get this working I just cant think of anything else to try
Thank you!