Kelty got the idea for the solar-powered charger from the Minty Boost, a $20 charger powered by two AA alkaline batteries. It’s called the Minty Boost because it is also housed in an Altoids breath mints tin. But it had its shortcomings.
“The problem is, with an iPod Touch or an iPhone, the battery in an iPhone is so big that it will deplete the batteries [in the Minty Boost] and you’ll only get half a charge,” he explained.
To improve upon the Minty Boost, Kelty replaced the AA batteries with a rechargeable lithium polymer battery and added a small solar panel. The solar panel recharges the internal battery, which in turn recharges the iPhone.
“The idea is that you can leave this out in the sun during the day while you’re using your phone, or whatever device, and at night time, plug your phone into it and you’re good to go,” Kelty said.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Maker Business — To make it through a tough business cycle, layoffs should be a last resort
Wearables — Little pixel jackets
Electronics — Aliasing is ugly!
Python for Microcontrollers — Python on Microcontrollers Newsletter: CircuitPython supported by 70 SBCs and more! #Python #Adafruit #CircuitPython @micropython @ThePSF
Adafruit IoT Monthly — OpenCV Critter Cam, LoraWAN on Raspberry Pi 2040, and more!
Microsoft MakeCode — MakeCode Arcade Turns One!
EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 3/03/2021 Feat. Adafruit Feather RP2040! @adafruit #adafruit #newproducts
Sorry, the comment form is closed at this time.