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sandTable/pcb/pcbway-order/2-bom-sandtable-controller-v0.4.csv
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ckochandClaude Opus 5.5 1400cc8afd Controller board: ESP32 + 2x StepStick carrier (v0.4), FluidNC config 
- KiCad project generated by pcb/tools (design, route, schematic, fab outputs).
- v0.4 fixes the v0.3 review findings: low-dropout 3.3 V regulator, OR'd 5 V
  supply, polyfuse, USB ESD protection, input clamps, ceramic decoupling at the
  drivers, A4988/DRV8825 jumper, ground stitching. DRC/ERC clean.
- v0.3 (as ordered) kept in pcb/archive/v0.3.
- FluidNC config.yaml for the board; rho hard limit on.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 13:40:23 -05:00

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1Item #DesignatorQtyManufacturerMfg Part #Description / ValuePackage / FootprintTypeNotes
21U11EspressifESP32-WROOM-32E-N8Wi-Fi + Bluetooth module, 8 MB flash, PCB antennaESP32-WROOM-32ESMD
32U21WCHCH340CUSB to UART bridge, SOIC-16SOIC-16_3.9x9.9mm_P1.27mmSMD
43U31Diodes IncorporatedAP7361C-33E-13LDO regulator 3.3 V 1 A, low dropout, SOT-223 (pin 1 IN, 2 GND/tab, 3 OUT)SOT-223-3_TabPin2SMDNot an AMS1117: the pinout differs, no substitutes
54U51STMicroelectronicsUSBLC6-2SC6USB ESD protection, 2 lines, SOT-23-6SOT-23-6SMD
65U41Texas InstrumentsSN74AHCT1G125DBVRSingle buffer, TTL-level input, SOT-23-5SOT-23-5SMD
76PS11RECOMR-78E5.0-1.0Switching regulator 5 V 1 A, SIP-3Converter_DCDC_RECOM_R-78E-0.5_THTThru-Hole
87F11BournsMF-MSMF250/16X-2PTC resettable fuse, 2.5 A hold, 5 A trip, 16 V, 1812Fuse_1812_4532MetricSMD
98J11Same Sky (CUI Devices)PJ-063AHDC barrel jack, 2.0 mm pin, fits 5.5 x 2.1 mm plugsBarrelJack_CUI_PJ-063AH_HorizontalThru-Hole
109J21Korean Hroparts ElecTYPE-C-31-M-12USB-C receptacle, USB 2.0, 16 pinUSB_C_Receptacle_HRO_TYPE-C-31-M-12SMD
1110J3,J42JSTB4B-XH-A(LF)(SN)XH header, 4 pin, 2.5 mm pitch, verticalJST_XH_B4B-XH-A_1x04_P2.50mm_VerticalThru-Hole
1211J5,J6,J73JSTB3B-XH-A(LF)(SN)XH header, 3 pin, 2.5 mm pitch, verticalJST_XH_B3B-XH-A_1x03_P2.50mm_VerticalThru-Hole
1312J81SullinsPRPC004SAAN-RCMale pin header 1 x 4, 2.54 mm pitch, verticalPinHeader_1x04_P2.54mm_VerticalThru-Hole
1413A1,A24SullinsPPTC081LFBN-RCFemale pin header 1 x 8, 2.54 mm pitch, 8.5 mm tallPololu_Breakout-16_15.2x20.3mmThru-Hole2 headers per driver (4 total). Sockets only: the DRV8825 modules are supplied by me
1514D1,D22SS34Schottky diode 40 V 3 A, SMAD_SMASMDAny brand
1615D31B5819WSchottky diode 40 V 1 A, SOD-123D_SOD-123SMDAny brand
1716D6,D72BAT54WSSchottky diode 30 V 0.2 A, SOD-323D_SOD-323SMDAny brand
1817D41LED green, 0603LED_0603_1608MetricSMDAny brand
1918D51LED blue, 0603LED_0603_1608MetricSMDAny brand
2019Q1,Q22onsemiMMBT3904LT1GNPN transistor 40 V 200 mA, SOT-23SOT-23SMDAny MMBT3904 ok
2120SW1,SW22OmronB3U-1000PTactile switch, SMD, 3 x 2.5 mmSW_SPST_B3U-1000PSMD
2221C1,C22PanasonicEEE-FK1V101GPAluminium electrolytic capacitor 100 uF 35 V, SMD 8 x 10.2 mmCP_Elec_8x10SMD
2322C3,C42Ceramic capacitor 10 uF 25 V X5R, 1206C_1206_3216MetricSMDAny brand
2423C16,C172Ceramic capacitor 10 uF 50 V X7R, 1206C_1206_3216MetricSMDAny brand
2524C5,C92Ceramic capacitor 10 uF 16 V X5R, 0805C_0805_2012MetricSMDAny brand
2625C61Ceramic capacitor 22 uF 10 V X5R, 0805C_0805_2012MetricSMDAny brand
2726C7,C10,C13,C14,C155Ceramic capacitor 100 nF 50 V X7R, 0603C_0603_1608MetricSMDAny brand
2827C81Ceramic capacitor 1 uF 16 V X7R, 0603C_0603_1608MetricSMDAny brand
2928R1,R22Resistor 5.1 k 1%, 0603R_0603_1608MetricSMDAny brand
3029R3,R4,R5,R6,R8,R9,R117Resistor 10 k 1%, 0603R_0603_1608MetricSMDAny brand
3130R10,R12,R14,R154Resistor 1 k 1%, 0603R_0603_1608MetricSMDAny brand
3231R131Resistor 330 1%, 0603R_0603_1608MetricSMDAny brand
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