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SeeedStudio Grove NFC 2in1 charge discharge board module DIY 18650 lithium battery Power Mobile Bank so your robot can alert so your robot can alert you or safely shut down before the battery is depleted Dual Output Symmetric + 15V output for flexibility you can call functions to detect NFC targets Access Control Systems: Implement secure door locks and building access management by reading unique NFC tag UIDs and validating against authentication databases
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