![]() ![]() The chip is programmed with 4 hours of charging time, then it goes into automatic sleep mode. A bigger cell will take more time to charge, but won't be harmed or overheated. We strongly recommend that you selectĪ Li-Po battery of at least 700mAh capacity. ![]() Smaller cells will be damaged by this current and may overheat, develop internal gasses and explode, setting on fire the surroundings. MINIMUM capacity of the Li-Po battery should be 700 mAh. For Arduino / Genuino MKRZero we use a specialized chip that has a preset charging current of 350mAh. ![]() Li-Po batteries are charged up to 4,2V with a current that is usually half of the nominal capacity (C/2). The SD library automatically recognizes the MKRZero and so any modification to the sketch is needed to use it aprat from choosing the right SS pin (SDCARD_SS_PIN). Furthermore SD card is driven by a dedicated SPI interface (SPI1) and so any of the pins of the header is busy during SD usage. The on- board SD connector allows you to play with files without adding any extra hardware to the board. Li-Po batteries, Pins, SD and board LEDs On-board SD ![]()
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