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Back(https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/0_Datasheets/Humidity/Sensirion_Humidity_Sensors_SHTC3_Datasheet.pdf Sensirion DFN-8 SHT3x-DIS (https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT3x_Datasheet_digital.pdf 24-Lead Plastic Shrink Small Outline (SN) - Narrow, 3.90 mm Body [WSON], http://www.ti.com/lit/ml/mpds421/mpds421.pdf WSON-16 3.3 x 1.35mm Pitch 0.4mm X2SON-8 1.4x1mm Pitch0.35mm http://www.ti.com/lit/ds/symlink/pca9306.pdf Maxim Integrated TSOC-6 D6+1,https://datasheets.maximintegrated.com/en/ds/DS2401.pdf, https://pdfserv.maximintegrated.com/land_patterns/90-0321.PDF ATPAK SMD package, http://www.icbank.com/icbank_data/semi_package/to268aa_dim.pdf D3PAK TO-268 D3PAK-3 TO-268-3 SMD package Diotec Diotec MicroDil, body 3.0x3.0x1.8mm (e.g. Diode bridge), see https://diotec.com/tl_files/diotec/files/pdf/datasheets/mys40.pdf Diotec MicroDil diode bridge Three phase, Bridge, Rectifier 4-lead round diode bridge ABS (Diotec), see https://diotec.com/tl_files/diotec/files/pdf/datasheets/abs2.pdf SMD package for Standex Meder DIP reed relay Standex-Meder SIL-relais, Form 1A, see https://standexelectronics.com/wp-content/uploads/datasheet_reed_relay_SIL.pdf Standex-Meder SIL-relais, Form 1C, see https://standexelectronics.com/wp-content/uploads/datasheet_reed_relay_SIL.pdf Miniature PCB Relay, PCH Series, 1 Form A http://www.sanyourelay.ca/public/products/pdf/SRD.pdf relay Sanyu SRD form B opener http://www.sanyourelay.ca/public/products/pdf/SRD.pdf relay Sanyu SRD form B opener Relay SPST Schrack-RT1 RM3.5mm 8A 250V AC Form C AXICOM IM-Series Relay DPDR Pitch 3.2mm AXICOM IM-Series Relays, DPDR, Pitch 5.08 AXICOM IM-Series Relays, DPDR, Pitch 3.2mm, http://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Specification+Or+Standard%7F108-98001%7FV%7Fpdf%7FEnglish%7FENG_SS_108-98001_V_IM_0614_v1.pdf%7F4-1462039-1 AXICOM IM-Series Relays, DPDR, Pitch 5.08 AXICOM IM-Series Relay DPDR Pitch 3.2mm AXICOM IM-Series Relays, DPDR, Pitch 5.08 AXICOM IM-Series Relay SPDT Omron Serie G6EK, see http://www.logosfoundation.org/instrum_gwr/pi/Omron_G6E_134P.pdf Relay SPDT Omron Serie G6EK Panasonic Relay SPST, https://www3.panasonic.biz/ac/e_download/control/relay/power/catalog/mech_eng_lfg.pdf Bourns rotary encoder, EC12E..., vertical shaft, mounting holes - these gaps reduce heat conduction during soldering - ground plane 56529bef3a0c7d0b31cfccd6b6ce971fb35b4e9c Updates from real TL0x4s 5cacbfea2e Add polygon calculation for wing plates 5cacbfea2e523d618ea3bcbc0bca9c37eb36f10d Update README.md * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to use for the flat make the walls; a little wiggle room on the wrong way