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Open Source Solarpad Kit Solar USB Charger
USB Rechargeable Soldering Iron: Solderdoodle Pro
Emergency USB Solar Wall Socket: Solar Socket
Solar Powered Soldering Station
The Kickstarter project for this was just launched. You can visit the page here: https://www.kickstarter.com/projects/249225636/sol...
Power Stacker: Stackable USB Rechargeable Battery System
Open Source DIY Automatic Bike Tail Light 2.0
USB Rechargeable Fire Starter
What's the difference between a bike light app and a flashlight app or built-in flashlight function?
You shouldn't put LEDs directly in parallel like that, sharing one resistor, especially in something you're selling as a product, and especially in something that may be exposed to extremes of temperature, or light/shadows falling on some of the LEDs but not the others. LEDs will always have slightly different forward voltage drops, and whichever one has the lowest will pass the greatest current. This, combined with or partially caused by the environmental factors I mentioned, will cause that LED to wear out more quickly, accelerating the degradation. Eventually that one will burn out, and the one resistor will then be too small for the remaining LEDs, which will then burn out in succession. Instead, give each LED its own resistor, or put all of the LEDs in series (which obviously makes sure they all pass the same current, but requires much more voltage).
Solderdoodle Pro 2.0: USB Rechargeable Soldering Iron
Ultimate 10 Watt USB Bicycle Generator
3D Printed Tiny Home
Cordless Lost Foam Cast Cutting Tool - USB Rechargeable
Solder Wire Art
Paracord Solar USB Battery Backpack
How to Solar Charge Lithium Ion Batteries for Smart Phones
Bicycle Solar/Dynamo USB Charger + Tail Lights
Solderdoodle is now available for purchase at www.solderdoodle.com.
Can i but this Maxim MAX8903G charge controller from you?
Once i have all of the parts, how long will this take me to completely set up? (not including step 5: solar socket installation)
Ultra Portable Dremel Solar Cell Table Saw
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