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I’m an ECE an I also did a robotics with computer vision for my senior project. Some things went wrong.. so i’ll give you some tips.
For computer vision, I wouldn’t go with a micro controller. Use a single board computer (SBC). A raspberry pi is an example of a SBC. They’re in a little short supply right now, but if you can get even an older one you’ll have a much better time. You can use the OpenCV library in python. Will have to create a haar cascade file to recognize the balls.
1.) To supply the board, just use one of those Li-ion portable phone chargers. This is what I used.
It supplies 12V, 3 amps from that barrel jack. So you may be able to power your entire project with just this one battery. Otherwise, just use 2 batteries for 6 amps. Use voltage regulators to step down the voltage to other components where needed. Just get the commercially available ones. Keep it simple.
Also be aware that breadboards only take about 1Amp typically. If you’re pulling more than that, make sure you use proper wire gauges and prototyping board.
2.) Quite a few raspberry pi models have wifi. So when you look for one, just make sure it has wifi. You don’t need wifi for openCV. If you’re not comfortable with making a phone app… You could also make a web app in python flask accessible from your phone or laptop to control the robot with openCV. Just an alternate idea to satisfy the IOT requirement.
3.) Yes and I would recommend using python openCV. It’s open source and being used in all kind of things now. Very easy to use.
Good luck
I’m an ECE an I also did a robotics with computer vision for my senior project. Some things went wrong.. so i’ll give you some tips.
For computer vision, I wouldn’t go with a micro controller. Use a single board computer (SBC). A raspberry pi is an example of a SBC. They’re in a little short supply right now, but if you can get even an older one you’ll have a much better time. You can use the OpenCV library in python. Will have to create a haar cascade file to recognize the balls.
1.) To supply the board, just use one of those Li-ion portable phone chargers. This is what I used.
It supplies 12V, 3 amps from that barrel jack. So you may be able to power your entire project with just this one battery. Otherwise, just use 2 batteries for 6 amps. Use voltage regulators to step down the voltage to other components where needed. Just get the commercially available ones. Keep it simple.
Also be aware that breadboards only take about 1Amp typically. If you’re pulling more than that, make sure you use proper wire gauges and prototyping board.
2.) Quite a few raspberry pi models have wifi. So when you look for one, just make sure it has wifi. You don’t need wifi for openCV. If you’re not comfortable with making a phone app… You could also make a web app in python flask accessible from your phone or laptop to control the robot with openCV. Just an alternate idea to satisfy the IOT requirement.
3.) Yes and I would recommend using python openCV. It’s open source and being used in all kind of things now. Very easy to use.
Good luck
Yes that will work, and yes the device will only pull the amperage it needs, so 5A is enough headroom to run Digitakt, Digitone, and Syntakt simultaneously (they would need 4A minimum collectively).
However, I recommend against using the 12V cigarette lighter style of plug. It is less safe (because kids can put their fingers in and get shocked), and also the internal connection just isn't as good. It is based on spring tension and it will wear out over time, meaning if it gets bumped your device could immediately reboot and potentially you could lose work.
So I recommend something with a 12V DC barrel connection output instead. You'll have a better and safer connection, and less bulky cables. Ideally you want a 2.1mm x 5.5mm barrel connection, as that's what the Elektron boxes use.
This is what I'm talking about: TalentCell Rechargeable 12V 6000mAh/5V 12000mAh DC Output Lithium ion Battery Pack for LED Strip and CCTV Camera, Portable Li-ion Power Bank with Charger, Black https://www.amazon.com/dp/B00ME3ZH7C/ref=cm_sw_r_apan_i_X33BJVXGMMQSXAWS09QC
That one looks like a good choice for a single Elektron box. I've also seen versions similar to this with multiple DC outputs which could run multiple boxes simultaneously. There are also some with 9-volt outputs for stuff like volcas and guitar pedals. I haven't used this one personally, but the specs look great.
By the way, on my testing with the syntakt, it would work from full charge of 12.6 volts down to lower charge of 11.5 volts. I assume the digitakt and digitone are similar. In lithium ion battery world, a 12V battery is actually 11.1V nominal, and 12.6V represents a full charge. So the full runtime of your devices is different. For reference, with an older and heavier SLA battery, 12V means 14.7V fully charged and down to as low as 10V before depleted. So it's a much wider voltage range. Lithium ion is still totally worth it, it's just good general knowledge to be aware of when dealing with batteries.
Sorry for the necro, but almost all small TVs like what the OP has have an external power brick and actually run at 12V (for direct car use from the lighter socket), and there are quite a few power banks designed for this exact setup, providing a 5V USB and a 12V DC output at the same time - this is one such example (not a recommendation, just the first that popped up).
Powers my M50 for over six hours.
Is this battery pack safe to use as an external battery for the Switch?