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by ga2500ev
Tue May 31, 2016 3:08 pm
Forum: Troubleshooting
Topic: I'm newbie- physical computing with python
Replies: 9
Views: 1213

Re: I'm newbie- physical computing with python

I think this line points to the problem:

RuntimeError: No access to /dev/mem. Try running as root!

So try:

Code: Select all

$ sudo python myprogram.py
sudo is a command that runs a program as the root administrative user.

Hope this helps,

ga2500ev
by ga2500ev
Wed May 25, 2016 2:28 pm
Forum: Beginners
Topic: control a 1A 24V motor, how?
Replies: 15
Views: 4867

Re: control a 1A 24V motor, how?

so if i understand you right, this transistor, can change the current? The motor controls the current, not the transistor and there by change speed of fan motor? The speed of the motor is governed completely by the voltage. Let me throw out an analogy. The motor is like a heavy flywheel. When you s...
by ga2500ev
Tue May 24, 2016 12:36 pm
Forum: General discussion
Topic: Plus ca change... Pi Zero 1.3 now OOS at Adafruit
Replies: 31
Views: 6509

Re: Plus ca change... Pi Zero 1.3 now OOS at Adafruit

I've ordered three Zero from Adafruit. Each was $5 shipping to California. Must be nice. I just tried again with a couple of items, a USB OTG hub and the Pi Zero camera cable. The only shipping options available were UPS. For both UPS ground shipping was $9.51. This morning Microcenter seems to hav...
by ga2500ev
Mon May 23, 2016 7:11 pm
Forum: General discussion
Topic: Plus ca change... Pi Zero 1.3 now OOS at Adafruit
Replies: 31
Views: 6509

Re: Plus ca change... Pi Zero 1.3 now OOS at Adafruit

Microcenters have the Pi Zero 1.3 with camera connector in stock as of yesterday. Well, that didn't take long... As of Monday morning, every microcenter store is now showing "This product is no longer available." Looks like Microcenter screwed up their new entry for ordering online and picking up i...
by ga2500ev
Sun May 22, 2016 7:35 pm
Forum: General discussion
Topic: Plus ca change... Pi Zero 1.3 now OOS at Adafruit
Replies: 31
Views: 6509

Re: Plus ca change... Pi Zero 1.3 now OOS at Adafruit

Microcenters have the Pi Zero 1.3 with camera connector in stock as of yesterday. I was interested enough that I wrote a bash script that uses curl and some editing to show the inventory status for my Atlanta area Microcenter stores. So it looks like the problem is going to persist for a while longe...

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