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Crowd Supply makerPower Solar
Crowd Supply makerPower Solar is an intelligent solar power system ideal for Internet of Things (IoT) projects. The makerPower Solar combines a solar battery charger and a 5V power supply, enabling technical professionals and hobbyists to take their embedded systems and IoT devices off the grid and run them anywhere. The makerPower Solar can operate as a simple stand-alone power supply or as a peripheral capable of fully reporting power conditions. A true Maximum-Power Point (MPPT) algorithm extracts every joule of energy from all solar conditions.
- Dimensions
- 85mm x 56mm (same size as Raspberry Pi 3)
- Mounting holes align with Raspberry Pi boards (including Pi Zero)
- 12V Operation
- Designed for 36-cell solar panels (typ. 25W to 40W)
- Works with sealed AGM lead-acid batteries (typ. 7Ah to 18Ah)
- 35W MPPT Charger
- Dynamic Perturb and Observe algorithm
- Three state charge: BULK, ABSORPTION, FLOAT
- Temperature compensation
- Dual Outputs
- 5V, 2A (10W) managed output available from USB Type-A socket for plug and play with many devices or from a 0.1" header for direct connection
- Fused and current monitored 12V (3A maximum) battery output available from a header
- Digital Interface
- I2C slave interface
- Alert logic signal to notify of impending power-down
- Night logic signal asserted when the solar panel is dark
- Detachable temperature sensor for battery temperature monitoring
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Customer Reviews
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I'm saddened to see that these are no longer for sale. I've purchased two and am very impressed with their design, implementation, quality, and documentation. Kudos to its maker, Dan Julio Designs.