## Search found 6 matches

Mon May 20, 2019 3:13 pm
Forum: Astro Pi
Topic: [Python] Define how many pixels to light
Replies: 2
Views: 453

### Re: [Python] Define how many pixels to light

Code: Select all

``````pixels = []
for i in range(64):
if i < pixelCount:
pixels.append(RED)
else:
pixels.append(CLEAR)
sense.set_pixels(pixels)``````
Mon May 20, 2019 3:10 pm
Forum: Astro Pi
Topic: Joystick registers double
Replies: 2
Views: 506

### Joystick registers double

Hi all, I am having some interesting behaviour with my sense hat. I wrote some code to be invoked on button press with the joystick. I noticed it seems to be being run twice. So, I took some code from teh getting started tutorial and modified it a touch. If I run the code below. For every button pre...
Sun May 19, 2019 2:37 pm
Forum: Astro Pi
Topic: [Python] Define how many pixels to light
Replies: 2
Views: 453

### [Python] Define how many pixels to light

Hi all,
Can someone give me a pointer here. I have a sense-hat and I want to be able to give a number between 1 and 64, and then light the corresponding number of pixels in a given colour. How can I programatically do that in Python?
Thu Jun 14, 2012 7:37 am
Forum: Troubleshooting
Topic: Strange Boot Combinations
Replies: 4
Views: 849

### Re: Strange Boot Combinations

I suspected that nothing would happen without an SD card in the device other than the red power light. I have ordered a couple more SD cards just to rule those out. I am also sometimes seeing when the device doesn't boot, a very faint green light on the OK led.
Wed Jun 13, 2012 1:51 pm
Forum: Troubleshooting
Topic: Strange Boot Combinations
Replies: 4
Views: 849

### Re: Strange Boot Combinations

Hi, I suspected it is not normal behaviour. The PSU that I am using is an original HTC charger rated at 5V, 1A. I suspect the power supply is okay as I have tried it will three different supplies so far (2 x HTC, 1 x Samsung rated at 1.2A), each attaining exactly the same behaviour. Can someone tell...
Wed Jun 13, 2012 11:23 am
Forum: Troubleshooting
Topic: Strange Boot Combinations
Replies: 4
Views: 849

### Strange Boot Combinations

Hi all, I have received my pi and I have successfully installed the Debian image onto an SD card and can boot the pi successfully. I have found some strange combinations that I am wondering if this is intended design or some form of error. Let me explain (the combinations below all assume that my SD...