IoTea LoRa SmartAgriculture
PM2.5 PollutionVisualization WioLTE
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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 that has the voltage of 3.0V-4.2V to shift up for 5V output, or put on Li-ion battery and solar panel to form an autonomous sensor unit. The maximum current provided by the board can get up to 600mA. An usb connector is also useful to charge the battery.
Short circuit protection
3W Output Power when connecting battery
Continuous Charge Current Up to 900mA
Battery status indication ( Red : Charging , Green: Charged )
Battery input voltage: 3.0~4.5V
USB input voltage: 4.75~5.25V
Solar input voltage: 4.8~6V
Maximum Output Power(with battery): 3W(600mA@5V)
Ripple voltage：<100mV @ 500mA
Solar Charger Shield v2.2 sch&pcb
Solar Charger Shield v2.2.pdf
Wiki of Solar Charger Shield v2.2
Hello, as for the battery, any 3.7V lipo battery is fine, but we don't have battery here.
The panel you had memtioned is ok.
You can acquire this from our wiki : http://wiki.seeed.cc/Solar_Charger_Shield_V2.2/
Moreover, what is the meaning of the following acronyms which are next to the J1 (jumper 1?) ?? - R1, R9, 0K, CH ???
Can I have a sketch with the meaning of all acronyms?
Yes, works with both R2 and R3.