Moderate activity for 4+ hours on a not fully charge battery… the 12V battery dropped to 8V (started @ 11?) at which time the PSU put the computer into a forced hibernate (I think…I’ll see shortly) and gracefully shutdown (we’ll see)
I’m now going to stick the battery on a charger… for long periods of time would it be dangerous to have the charger charging while it’s running? I would assume not, since the PSU is used for automotive applications and the alternator is charging the battery system on a car while its all running. This is a lead acid battery & charger.
That is correct - systemctl is one of the weighty command which you can do loads of damage if you’ve been drinking…
Typically, the prompt # means your logged in as root and can proceed to format the disk, $ is usual for a non-root user - although with the login scripts the prompt can be changed to anything…
Alternatively, in windows you typically see C:> and can still format the disk :)
Honestly, I thought you would be completely wrapped up in lunar and daughter project
I’ve got some parts around here that I’m trying to put together… Trying to make everything modular so we can quickly put better components together… Should be a good paradigm for design, as long as my junk parts do not hurt anything
What voltage are the motors? You could always use opto isolated relays for quick and cheap. I have 2 24V relays I can donate for this that will drive the motors great.
What current rating are they? The BOA Bridge uses a MOSFET for PWM. They need rather high PWM too - opto-isolation would be preferrable. The wheelchair is for a “heavy” person - I don’t know all the specs for them … stalling current ect, but I have had them melt previous H-bridges…
Many updates have taken place, mostly on the software (MRL) side… A dependency manager has been put into MRL, and although this took a generous amount of time to develop it is well worth it. A dependency manager, manages all the complexities of sub-projects, the installation, and upgrade of those dependencies. Managing dependencies is one of the most challenging aspects of complex software. There are only a few applications, I know of, which do well in this area :
1. Drupal - has a great upgrade/installation/module design 2. Yum or Apt-Get depending on Linux flavor excel at this
MRL 15 will have a dependency manager - (albiet probably buggy - its a start)
New functionality which can be applied to multiple projects including MAAHR will have the highest priority. Since quick updating and stable changes going forward were applicable to all projects, the dependency manager was a high priority (unglorious as it is)
For the future of MAAHR, it is still my intention to create a online/communal “learning” environment in which participants can log into MAAHR and help “teach” object recognition. The data collected from these sessions will be processed and hopefully evolve into something interesting.
