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BackThe full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on https://www.analog.com/media/en/technical-documentation/data-sheets/8063fa.pdf Altera BGA-36 V36 VBGA BGA-48 - pitch 0.8 mm Highspeed card edge connector for 1.6mm PCB's with 05 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 30 contacts (not polarized Highspeed card edge connector for IQRF TR-x2DA(T) modules, http://iqrf.org/weben/downloads.php?id=104 Bluetooth v4.2 + NFC module Modtronix Wireless SX1276 LoRa Module (http://modtronix.com/img/prod/imod/inair9/inair_dimensions.gif Modtronix LoRa inAir inAir9 SX1276 RF 915MHz 868MHz Wireless RAK811 LPWAN Module https://downloads.rakwireless.com/LoRa/RAK4200/Hardware-Specification/RAK4200_Module_Specifications_V1.4.pdf Class 2 Bluetooth Module without antenna Low-Power Long Range Transceiver Module THT-16 (https://www.hoperf.com/data/upload/portal/20181127/5bfcbea20e9ef.pdf Low Power Long Range Transceiver Module LoRa Radio, RF, Module, http://www.hoperf.com/upload/rf/RFM69HW-V1.3.pdf 8 pin DIP socket A-004 4 Knobs Screws, nuts, and spacers (see [build notes](build.md)) | | | | U1 | 1 | Conn_01x04 | Pin header, 2.54 mm, 1x10 Pin header, 2.54 mm, 1x2 (see build notes A-1605 * Fit SIP socket only if you like. Or both. Pointy_external_indicator_pokey_outey_ness = -0.0; // pokey_outey_value = pointy_external_indicator_pokey_outey_ness - 1 - pad; pokey_outey = [pokey_outey_value, pokey_outey_value,0]; // there's an arrow shaped cutout in the mid surdos repeat a pattern of a round shafthole base shape. Cylinder(r = shafthole_radius, h = z height, how far the wall is coming out of range. Please use the two keybeds in storage; decipher key matrix, work out either MC or dumb resistor array to output correct volts for each stage? Latest commits for file Schematics/OttosIrresistableDance/OttosIrresistableDance.kicad_sch From 2666d5803f3b2f27a6abef8e91e4e55eaf58d2ad Mon Sep 17 00:00:00 2001 Subject: [PATCH] Initial kicad, images, gitignore for kicad backups Initial kicad, images, gitignore for kicad backups .gitignore | 2 | 1N5817 | Schottky diode | | R24, R26, R28 | 3 | 100R | Resistor | | D1, D2 | 2 | 1N5817 | Schottky Barrier Rectifier Diode, DO-41"/>