Solar Charger Shield
Introduction
The solar charger is a stackable shield to Arduino compatible platforms, enables adaptive battery power and act as energy harvester for in-field charging. You may use various batteries just to shift up for 5V output, or put on Li-ion battery and solar panel to form an autonomous sensor unit.
Model:INT107D3P
Features
Change
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Auto adjust charging current according to source capability
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Designed for inconstant supply like solar panel
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Optimized charging curve for Li-ion batteries
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Charging status indicator
Supply
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0.9-4.2V wide input voltage
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5 VDC regulated output
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Max 500mA output
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Max 87% conversion efficiency
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Build-in 1A over current protection
Application Ideas
- Application1
- Application2
- Application3
Cautions
The warnings and wrong operations possible cause dangerous.
Specification
Key Specification
| PCB size | 5.3 x 6.9 x 0.16 cm |
| Indicators | Charging ,complete |
| Power supply | 4.4VDV-6VDC |
| Power Connector | Mini USB / JST |
| RoHS | YES |
Charging
| Specification | Min | Norm | Max | Unit |
|---|---|---|---|---|
| Input voltage | 4.4 | 5 | 6 | VDC |
| Low power threshold | 3.7 | 3.9 | VDC | |
| Charge voltage | 4.158 | 4.2 | 4.242 | VDC |
| Precharge threshold | 2.9 | 3 | 3.1 | VDC |
Power Supplying
| Specification | Min | Norm | Max | Unit |
|---|---|---|---|---|
| Battery voltage | 2.8 | 3.7 | 4.2 | VDC |
| Output voltage | 4.6 | 4.8 | 5.0 | VDC |
| Output current | 200 | 4.2 | 500 | mA |
| Level up efficiency | 70 | 80 | 87 | % |
Charging curve
Pin definition and Rating
Mechanic Dimensions
Usage
Hardware Installation
1.Stacked setup, put battery between the pin headers, please note the polarity while connecting the wires to the battery jac.
(Red to +, black to -).
2.Solar panel or other energy sources should be connected to PWR1, solar panel Jack.
Energy Source: (4V To 6V output)
5V Solar cell
Regulated Motor output
Rechargeable battery (3.7V To 4.2V)
Lithium Battery
NiMh Battery
Regular battery (from 2.8V to 4.2V)
AAA
AA
Programming
Includes important code snippet. Demo code like :
Demo code
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Example
The projects and application examples.
Bill of Materials (BOM) /parts list
All the components used to produce the product.
FAQ
Please list your question here:
Support
If you have questions or other better design ideas, you can go to our forum or wish to discuss.
Version Tracker
| Revision | Descriptions | Release Date |
|---|---|---|
| Solar Charger Shield v1.0 | Initial public release | May 01, 2010 |
Bug Tracker
Bug Tracker is the place you can publish any bugs you think you might have found during use. Please write down what you have to say, your answers will help us improve our products.
Additional Idea
The Additional Idea is the place to write your project ideas about this product, or other usages you’ve found. Or you can write them on Projects page.
How to buy
Here to buy Solar Charger Shield: http://www.seeedstudio.com/depot/solar-charger-shield-p-594.html?cPath=104_107
Licensing
This documentation is licensed under the Creative Commons Attribution-ShareAlike License 3.0 Source code and libraries are licensed under GPL/LGPL, see source code files for details.
Help us make it better
Welcome to the new documentation system of Seeed Studio. We have made a lot of progress comparing to the old wiki system and will continue to improve it to make it more user friendly and helpful. The improvement can't be done without your kindly feedback. If you have any suggestions or findings, you are most welcome to submit the amended version as our contributor via Github or give us suggestions in the survey below, it would be more appreciated if you could leave your email so that we can reply to you. Happy Hacking!