Raj @ embedded-lab.com tipped us with his latest project. It’s a simple, but useful USB Solar powered charger able to charge a power bank or your smartphone.
Yesterday, I built a very simple DIY solar-powered USB charger for my TP-link 10400mAh USB Power Bank. All I needed was a 6V/3.5W solar panel and the TD1410-based 5V buck converter module. I bought both of them on Aliexpress for less than $8.
A very simple DIY solar-powered USB charger – [Link]