crwdns2935425:05crwdne2935425:0
crwdns2931653:05crwdne2931653:0
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We can identify a few key components on the board:
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Nordic Semi nRF52832 (Bluetooth chip)
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Winbond 25Q32JV 32MB SPI Flash
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TI BQ25601 battery charge controller
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WCH WC340H USB-UART controller
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0