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42 Pin https://content.u-blox.com/sites/default/files/NINA-B1_DataSheet_UBX-15019243.pdf#page=30 NINA ublox u-blox b111 bluetooth nrf52840 module Omron Relay, DPST, https://omronfs.omron.com/en_US/ecb/products/pdf/en-g2rl.pdf Relay, SPDT Form C, Gull Wings, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Data+Sheet%7F108-98001%7FZ.1%7Fpdf%7FEnglish%7FENG_DS_108-98001_Z.1.pdf TE IM-Series Relay DPDT IM-relay FRT5 Kemet signal relay, DPDT, non-latching, single coil latching, https://content.kemet.com/datasheets/KEM_R7002_EC2_EE2.pdf Kemet EC2 signal relay DPDT non single coil latching through hole 3.3mm, height 5, Wuerth electronics 9774020951 (https://katalog.we-online.de/em/datasheet/9774020951.pdf), generated with kicad-footprint-generator Molex LY 20 series connector, 202396-1507 (http://www.molex.com/pdm_docs/sd/2023960207_sd.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502426-5010, 50 Pins per row (http://www.molex.com/pdm_docs/sd/431602102_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-131-02-xxx-DV-LC, 31 Pins per row (https://cdn.harwin.com/pdfs/M20-890.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole Mallory low-profile piezo buzzer, https://www.mspindy.com/specifications/AST12140MLQ.pdf Buzzer, D12.2mm height 6.5mm, https://product.tdk.com/info/en/catalog/datasheets/piezoelectronic_buzzer_ps_en.pdf piezo buzzer self drive oscillator.

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