I have read and tried all the steps in this forum topic - https://forums.pimoroni.com/t/new-unicorn-hat-not-working/2317 without success.
The Issue: I have two unicorn hats, a few Pi 3B’s
Regardless of the Pi used, or the hat, the only pixels that light up are the top right 2 - 5 when the Pi is USB slots at the bottom.
When this first happened I thought the hat was faulty so I bought another.
Edit: I just tried a Unicorn Hat HD and that run the Pimoroni examples perfectly.
I have some information below - what else can I provide?
Thanks.
uname -a
Linux raspberrypi 5.10.11-v7+ #1399 SMP Thu Jan 28 12:06:05 GMT 2021 armv7l GNU/Linux
cat /etc/os-release
PRETTY_NAME=“Raspbian GNU/Linux 10 (buster)”
NAME=“Raspbian GNU/Linux”
VERSION_ID=“10”
VERSION=“10 (buster)”
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
pip list
Package Version
arandr 0.1.9
asn1crypto 0.24.0
automationhat 0.2.0
blinker 1.4
blinkt 0.1.2
buttonshim 0.0.2
Cap1xxx 0.1.3
certifi 2018.8.24
chardet 3.0.4
Click 7.0
colorama 0.3.7
colorzero 1.1
configparser 3.5.0b2
cookies 2.2.1
cryptography 2.6.1
drumhat 0.1.0
entrypoints 0.3
enum34 1.1.6
envirophat 1.0.0
ExplorerHAT 0.4.2
Flask 1.0.2
fourletterphat 0.1.0
funcsigs 1.0.2
gpiozero 1.5.1
idna 2.6
ipaddress 1.0.17
itsdangerous 0.24
Jinja2 2.10
keyring 17.1.1
keyrings.alt 3.1.1
MarkupSafe 1.1.0
microdotphat 0.2.1
mock 2.0.0
mote 0.0.4
motephat 0.0.3
numpy 1.16.2
oauthlib 2.1.0
olefile 0.46
pantilthat 0.0.7
pbr 4.2.0
phatbeat 0.1.1
pianohat 0.1.0
picamera 1.13
piglow 1.2.5
pigpio 1.44
Pillow 5.4.1
pip 18.1
pycairo 1.16.2
pycrypto 2.6.1
pygame 1.9.4.post1
PyGObject 3.30.4
pyinotify 0.9.6
PyJWT 1.7.0
pyOpenSSL 19.0.0
pyserial 3.4
pyxdg 0.25
rainbowhat 0.1.0
requests 2.21.0
requests-oauthlib 1.0.0
responses 0.9.0
rpi-ws281x 4.2.5
RPi.GPIO 0.7.0
RTIMULib 7.2.1
scrollphat 0.0.7
scrollphathd 1.2.1
SecretStorage 2.3.1
sense-hat 2.2.0
setuptools 40.8.0
simplejson 3.16.0
six 1.12.0
skywriter 0.0.7
sn3218 1.2.7
spidev 3.4
touchphat 0.0.1
twython 3.7.0
unicornhat 2.2.3
unicornhathd 0.0.4
urllib3 1.24.1
Werkzeug 0.14.1
wheel 0.32.3
sudo pip install -I rpi_ws281x
Looking in indexes: htt ps://pypi.org/simple, htt ps://www.piwheels.org/simple
Collecting rpi_ws281x
Using cached htt ps://files.pythonhosted.org/packages/51/3d/fd4029647ecc015cb61becab76d4b9eff8699681f3551adfd35596ea3df6/rpi_ws281x-4.2.5-cp27-cp27mu-linux_armv7l.whl
Installing collected packages: rpi-ws281x
Successfully installed rpi-ws281x-4.2.5
