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RockRaidersInc / Electrical

Repository for the electrical subteam
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Design power cutoff for wireless E-Stop #56

Closed cmcgowan27 closed 4 years ago

cmcgowan27 commented 5 years ago

Right now, we use a latching relay in series with our regular E-Stop. When you activate it, it latches open and opens the onboard E-Stop circuit controlling the relay. The relay then needs to be manually reset by pressing a button on the rover.

If you think this is already the best solution, also take a look at whether our hardware could be improved, or whether we can make something that doesn't require a manual reset.

YoshikoJanai commented 5 years ago

The hardware should be sufficient. I think mounting the relay itself to the future distribution board is a good idea.

The main QoL issue I've been looking at is the manual reset. I'd like to look into a dual wireless/manual reset solution using an Ultra Low Power Arduino like this, Mini Ultra 8 MHz. Maybe using one powered with a couple of batteries to let the board switch the relay on and off again, as opposed to requiring power from the main battery.

cmcgowan27 commented 4 years ago

Power cutoff has been integrated into the distribution PCB using same relay