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Module lora lorawan Multiprotocol radio SoC module https://www.raytac.com/download/index.php?index_id=43 wireless 2.4 GHz Wi-Fi https://www.espressif.com/sites/default/files/documentation/esp32-s2-wroom_esp32-s2-wroom-i_datasheet_en.pdf 2.4 GHz Bluetooth ble zigbee 802.15.4 flash crypto ATSAMR21G18 AT45DB041E TECC508A U.Fi Class 4 Bluetooth Module with on-board components c6741b48f0 More random files 7e24b3de83 Notes from MK's PCB livestream - avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals PCB layout: make power connection traces larger; MK uses .6mm -- this is actually a pushbutton momentary, but roughly same dimensions as toggle switch | | | | C3, C4, C11 | 3 | 100R | Resistor | | | Tayda | A-159 | | | | | | | | | Tayda | A-1605 | .

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