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Solar Radio

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JDISME
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Location: Billings, Montana
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Solar Radio

Postby JDISME » Mon Jun 01, 2015 11:44 pm

I wanted to make solar projects for a while now; I have always thought there is great potential in using solar power in general so I started small, a simple radio that I can take virtually anywhere and I never have to worry about a dead battery or not having some jams to listen to while I'm out hiking, camping or just sitting out for the day. Also a main focus was using parts that I already had instead of just ordering parts. I used almost all existing parts, I didn’t have enough 100KΩ resistors, other than that everything was used from parts existing.

I used 4x 6V 300mA solar panels with some 9V clips for the recharging system, and a light and durable ABS plastic 5x5x2.5 for the housing. I didn't want buttons that could be pressed inadvertently or anything complex to break down, so I went with some copper sheets with 100kΩ pull-downs that picks up moisture on fingers good and a basic power switch. Went with a 3.7V 2600mA battery and since it is oddly shaped I had to build a holder re-purposing some Ethernet ports, came out great. Cut a hole in the middle and mounted a speaker that was able to produce sound at a decent quality, better than I originally thought when I started testing the speakers I had.

I wanted to leave the option to still use headphones so I cut a spot for the headphones next to solar re-charging port. Looking back I should have make it turn off the main speaker once the headphones are plugged in, but that can be on the next version. All in all takes about 2 hours to re-charge from a dead battery to full charge, it's great. After the final initial charge everything is working out just as I planned. :-)

Finished Radio
Image

PPPDB Wired up
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Radio module I used
Image

The power consumption
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Speaker Options
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Protoboard w/ installed battery and holder
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Under the hood
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Attachments
IMAG3467.jpg
PPPDB Wired up
(999.58 KiB) Not downloaded yet
IMAG3477.jpg
Radio module I used
(844.82 KiB) Not downloaded yet
IMAG3480.jpg
The power consumption
(407.75 KiB) Not downloaded yet
IMAG3486.jpg
speaker options
(978.08 KiB) Not downloaded yet
IMAG3552.jpg
Protoboard w/ installed battery and holder
(909.09 KiB) Not downloaded yet
IMAG3627.jpg
Finished Radio
(692.03 KiB) Not downloaded yet
SolarRadio.zip
Source Zipped
(14.7 KiB) Downloaded 136 times
DSC_0140 (Medium).JPG
Under the hood
(211.21 KiB) Not downloaded yet
Last edited by JDISME on Tue Jun 02, 2015 9:46 pm, edited 2 times in total.
Joshua Donelson

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Savage///Circuits
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Re: Solar Radio

Postby Savage///Circuits » Tue Jun 02, 2015 1:41 pm

Cool project! Thanks for sharing!
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I'm only responsible for what I say, not what you understand.

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JDISME
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Posts: 69
Joined: Thu May 21, 2015 1:02 am
Location: Billings, Montana
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Re: Solar Radio

Postby JDISME » Tue Jun 02, 2015 9:49 pm

For sure, glad I was able to. I thought I took more pictures of me soldering, but I was in the moment and didn't take any. I took some and had to resize, Nikon doesn't appreciate pictures under 1MB. I will have to post a video once I touch it up a little. The glue didn't hold 100% when I hit some freezing weather driving around. :D ... Go Go HOT GLUE. :)
Joshua Donelson


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