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add some notes on lora modules and power

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sigil-03 2025-08-28 16:16:57 -06:00
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# RAK4631
datasheet: <https://docs.rakwireless.com/product-categories/wisblock/rak4631/datasheet/>
## NOTES
* compatible with RAK5005-O baseboard.
## SUPPORTED PROTOCOLS
* LoRA
* BLE
## POWER ANALYSIS
max power consumption: 12.5mA (@3.6V assumed) = 46.25mW
battery: 5900mAh @ 3.7V -> 21830mWh
runtime: batt_capacity/power_consumption = 472h

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# BATTERY
* lipo can charge at 1C
* 5900mAh -> 5.9A
## CHARGERS
1. [5V 2A USB-C](https://www.amazon.com/DWEII-Converter-Step-Up-Charging-Protection/dp/B09YD5C9QC/)
2. [5V 2A](https://www.amazon.com/Ruiwaer-Discharge-Integrated-Adjustable-Charging/dp/B08QHVW5J8)
* have on hand (i think)
## BMS
2. [3S 60A](https://www.amazon.com/dp/B0B9MMZWXC)
# SOLAR
* mppt charge controllers:
1. <https://www.amazon.com/Waveshare-Solar-Power-Manager-Regulated/dp/B0CT2ZBML9>
2. <https://www.amazon.com/4-4-6-5V-Lithium-Battery-Charger-Controller/dp/B08DY28BXW>