Labels Milestones
BackModule, 17.6x15.7x2.3mm, http://simcom.ee/documents/SIM800C/SIM800C_Hardware_Design_V1.05.pdf Quad-Band GSM/GPRS module, 24x24x3mm, http://simcom.ee/documents/SIM900/SIM900_Hardware%20Design_V2.05.pdf Telit xL865 familly footprint, http://www.telit.com/fileadmin/user_upload/products/Downloads/3G/Telit_UL865_Hardware_User_Guide_r8.pdf ublox Sara GSM/HSPA modem, https://www.u-blox.com/sites/default/files/SARA-G3-U2_SysIntegrManual_%28UBX-13000995%29.pdf, pag.162 ublox SARA-G3 SARA-U2 GSM HSPA Footprint for Mini-Circuits case CK605 (https://ww2.minicircuits.com/case_style/CK605.pdf Footprint for Mini-Circuits case TTT167 (Mini-Circuits_TTT167_LandPatternPL-079) following land pattern PL-035, including GND-vias (https://www.minicircuits.com/pcb/98-pl258.pdf Footprint for Mini-Circuits case CD542 (https://ww2.minicircuits.com/case_style/CD542.pdf) using land-pattern PL-052, including GND-vias (https://www.minicircuits.com/pcb/98-pl258.pdf Footprint for Mini-Circuits case MMM168, Land pattern PL-094, pads 5 and 6 // manual step (featuring debouncing!), sequencer cascading, basic glide (for portamento), attack decay sustain release envelope generator synth module. Layout and panel are Kosmo format. * [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 7.5mm holes, not 6mm alpha pots - 9.8mm, +2mm rotary - 11.5mm, +3.5mm -- biggest by far, maybe 12.6mm? SR2511 series are 11.43? Maybe more? Distance between pcb and front panel, steel retention lug, lateral left PCB mount, https://www.neutrik.com/en/product/nc3maav-1 AA Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, steel retention lug, lateral left PCB mount, asymmetric push, https://www.neutrik.com/en/product/ncj6fa-v-da Combo A series, 3 pole XLR female receptacle with 6.35mm (1/4in) stereo jack, switched, fully threaded nose, sleeve contact/front panel connection, https://www.neutrik.com/en/product/nrj6hh-1 Slim Jacks, 6.35mm (1/4in) stereo jack without switching contact, vertical PCB mount, https://www.neutrik.com/en/product/nc3fbv1 B Series, 3 pole female.
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