Congrats! It's absolutely refreshing to dust off an old hobby and do something with it! I'm only 28, but during the pandemic I decided to dust off my old electronics hobbies that fell by the wayside when the mobile app boom started. Middle school and early high school me thought I was going into robotics, but the iPhone came out the year I started high school. When the App Store came out the following year, the smart…
Thanks! I've always been fascinated by electronics and I so envy people in that domain. I bought an Arduino board (sorry if that's totally kiddie to you) and some parts and so far, my son and I have made a little robot that runs very inefficiently on 9-volt batteries. I just want to plug the damn thing in to overcome the power issue.
9V batteries sound and look like they should last long, but putting 6 1.5V batteries in series should last much longer. 9V batteries have a typical capacity of ~550 mAh, 1.5V batteries (even rechargeable ones) have a typical capacity of 2000~3000 mAh.