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R12, R13 | 3 | 100R | Resistor | | J2 | 1 uF tantalum\nYuSynth 1, 10 µF tantalum.\nMFOS 1, 1+15 µF electrolytic.\n1 µF tanty to try two more (same type, from the Program with a footprint that has wider spacing for the Adafruit Feather 32u4 FONA board, https://learn.adafruit.com/adafruit-feather-32u4-fona Adafruit Feather 32u4 FONA Footprint for Mini-Circuits case HQ1157 (https://www.minicircuits.com/case_style/HQ1157.pdf Footprint for Mini-Circuits case HZ1198 (https://ww2.minicircuits.com/case_style/HZ1198.pdf Footprint for Mini-Circuits case GP1212 (https://ww2.minicircuits.com/case_style/GP731.pdf) following land pattern drawing: https://ww2.minicircuits.com/pcb/98-pl094.pdf Footprint for mini circuit case CD542, Land pattern PL-225, vias included, (case drawing: https://ww2.minicircuits.com/case_style/CD542.pdf, land pattern PL-176, including GND vias (https://ww2.minicircuits.com/pcb/98-pl012.pdf Mini-Circuits top-hat case DB1627 (https://ww2.minicircuits.com/case_style/DB1627.pdf Footprint for Mini-Circuits case YY161 (https://ww2.minicircuits.com/case_style/YY161.pdf) using land-pattern PL-049, including GND-connections and vias (https://ww2.minicircuits.com/pcb/98-pl049.pdf Ai Thinker Ra-01 LoRa module wireless zigbee 802.15.4 thread nordic raytac nrf52840 nrf52833 Bluetooth Low Energy Module ble module st bluetooth Taiyo Yuden BK Series (see https://www.yuden.co.jp/productdata/catalog/mlci09_e.pdf Inductor, Walsin, WLFM252009x, 2.5x2.0x0.9mm, http://www.passivecomponent.com/wp-content/uploads/inductor/WLFM_C_series.pdf Inductor, Wuerth, WE-XHMI 8080, 8.3mmx8.8mm (Script generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 20 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-100172.PDF), generated with kicad-footprint-generator Molex LY 20 series connector, BM05B-GHS-TBT (http://www.jst-mfg.com/product/pdf/eng/eGH.pdf), generated with kicad-footprint-generator Diode SMD 3220 (8050 Metric), square (rectangular) end.

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