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by dwwaddell
Tue Apr 10, 2018 12:35 pm
Forum: Troubleshooting
Topic: SD Card permanently locked
Replies: 13
Views: 6926

Re: SD Card permanently locked

I ended up with a 32GB SD card in this condition when I accidentally rebooted the Pi during an "sudo apt upgrade". There is nothing I have been able to do to write to the card to fix the problem.
by dwwaddell
Sun Feb 05, 2017 9:51 am
Forum: Advanced users
Topic: USB serial communication with Roboteq sdc 2130
Replies: 2
Views: 1144

Re: USB serial communication with Roboteq sdc 2130

No, it isn't. The device /dev/ttyACM0 is created automatically when something is plugged into the USB port that supports serial communications. For example, I use it to communicate with a Trinamic Steprocker: var SerialPort = require('serialport'); // 01 04 01 00 00 00 19 64 83 MVP rel, 0, 6500 var ...
by dwwaddell
Tue Mar 10, 2015 8:05 am
Forum: General discussion
Topic: That PI2 unboxing: Unmistakable Odor of fried circuitry?
Replies: 28
Views: 5460

Re: That PI2 unboxing: Unmistakable Odor of fried circuitry?

I received my Pi 2 yesterday and even though it works just fine it smells strongly burned. This smell was before I even switched it on.
by dwwaddell
Sun Nov 02, 2014 10:16 am
Forum: General discussion
Topic: RasPi power usage measurements ALL Models
Replies: 156
Views: 278656

Re: RasPi power usage measurements ALL Models

My interest is in using the Pi B+ as an off-the-grid web server. With that aim I don't even need the HDMI connection, only the ethernet and the power is being supplied by a solar-powered battery charger (50000 mAh [claimed] and 1.5W charging from the solar panel). Any idea how much power the Pi uses...

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