Simple Solar BOT ----Blog 2

RE: Simple Solar BOT ----Blog 2

jw0752 — Mon, 13 Aug 2018 05:08:38 GMT

I am continuing to follow your interesting build.

John

RE: Simple Solar BOT ----Blog 2

nirmal2000 — Sat, 11 Aug 2018 20:02:03 GMT

eagerly waiting for next vedio[View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-002e28c2-cacc-4b1d-9675-46a516f2676e/contentimage_5F00_1.png:16:16]

RE: Simple Solar BOT ----Blog 2

jc2048 — Thu, 09 Aug 2018 09:51:50 GMT

The Uno and the Nano are both intended to be 5V boards. The 3v3 header pin is an output regulated down from the 5V. I think they intend it to be used to power circuitry on a shield board (have a look at the schematics).

These are the supply currents I see if I power each board directly with 5V (ie not bothering with the regulator down from Vin). That's with a program running but no IO attached. The input regulator would only add a milliamp or so to these figures, though it's obviously wasteful of power because of the voltage drop.

[View:/resized-image/__size/600x450/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-002e28c2-cacc-4b1d-9675-46a516f2676e/contentimage_5F00_188159.jpg:600:450]

[View:/resized-image/__size/600x450/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-002e28c2-cacc-4b1d-9675-46a516f2676e/contentimage_5F00_188160.jpg:600:450]

RE: Simple Solar BOT ----Blog 2

genebren — Wed, 08 Aug 2018 20:42:54 GMT

Great update on your solar power devices entry. Sizing of the solar panels is very important to get the necessary voltage and current for your robot.

Good job.

Gene