Old Fourth's 0.3 RMB Solar Panel (max 5.5V approx) Powered Model - Under Testing
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1、I bought a 30-cent solar panel (135mmX60mm) from Old Four's place and adapted it
2、I left a Type-C port, preparing to use C to C to power an e-ink screen equipped with a charging board (for recreational testing)
3、Currently, I'm using a lithium battery charging board, with its input connected to the solar panel to charge the lithium battery. The lithium battery charging board's 5V output is routed to a Type-C port, which then charges the e-ink screen's charging board!
4、I'll try adapting a USB port later
Additionally, I'm not sure if it's appropriate to power the charging board directly without adding a voltage regulator circuit. It's just for fun, so I'll try it and test it out; I don't really understand much
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