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Controller board: ESP32 + 2x StepStick carrier (v0.4), FluidNC config

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- 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>
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ckochandClaude Opus 5.5 committed 2026-11-01 13:40:23 -05:00
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pcb/archive/v0.3/pcbway-order/2-bom-sandtable-controller-v0.3.csv
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Item #,Designator,Qty,Manufacturer,Mfg Part #,Description / Value,Package / Footprint,Type,Notes
1,U1,1,Espressif,ESP32-WROOM-32E-N8,"Wi-Fi + Bluetooth module, 8 MB flash, PCB antenna",ESP32-WROOM-32E,SMD,
2,U2,1,WCH,CH340C,"USB to UART bridge, SOIC-16",SOIC-16_3.9x9.9mm_P1.27mm,SMD,
3,U3,1,Advanced Monolithic Systems,AMS1117-3.3,"LDO regulator 3.3 V 1 A, SOT-223",SOT-223-3_TabPin2,SMD,Any AMS1117-3.3 equivalent ok
4,U4,1,Texas Instruments,SN74AHCT1G125DBVR,"Single buffer, TTL-level input, SOT-23-5",SOT-23-5,SMD,
5,PS1,1,RECOM,R-78E5.0-0.5,"Switching regulator 5 V 0.5 A, SIP-3",Converter_DCDC_RECOM_R-78E-0.5_THT,Thru-Hole,
6,J1,1,Same Sky (CUI Devices),PJ-063AH,"DC barrel jack, 2.0 mm pin, fits 5.5 x 2.1 mm plugs",BarrelJack_CUI_PJ-063AH_Horizontal,Thru-Hole,
7,J2,1,Korean Hroparts Elec,TYPE-C-31-M-12,"USB-C receptacle, USB 2.0, 16 pin",USB_C_Receptacle_HRO_TYPE-C-31-M-12,SMD,
8,"J3,J4",2,JST,B4B-XH-A(LF)(SN),"XH header, 4 pin, 2.5 mm pitch, vertical",JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical,Thru-Hole,
9,"J5,J6,J7",3,JST,B3B-XH-A(LF)(SN),"XH header, 3 pin, 2.5 mm pitch, vertical",JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical,Thru-Hole,
10,J8,1,Sullins,PRPC004SAAN-RC,"Male pin header 1 x 4, 2.54 mm pitch, vertical",PinHeader_1x04_P2.54mm_Vertical,Thru-Hole,
11,"A1,A2",4,Sullins,PPTC081LFBN-RC,"Female pin header 1 x 8, 2.54 mm pitch, 8.5 mm tall",Pololu_Breakout-16_15.2x20.3mm,Thru-Hole,2 headers per driver (4 total). Sockets only: the DRV8825 modules are supplied by me
12,D1,1,,SS34,"Schottky diode 40 V 3 A, SMA",D_SMA,SMD,Any brand
13,"D2,D3",2,,B5819W,"Schottky diode 40 V 1 A, SOD-123",D_SOD-123,SMD,Any brand
14,D4,1,,,"LED green, 0603",LED_0603_1608Metric,SMD,Any brand
15,D5,1,,,"LED blue, 0603",LED_0603_1608Metric,SMD,Any brand
16,"Q1,Q2",2,onsemi,MMBT3904LT1G,"NPN transistor 40 V 200 mA, SOT-23",SOT-23,SMD,Any MMBT3904 ok
17,"SW1,SW2",2,Omron,B3U-1000P,"Tactile switch, SMD, 3 x 2.5 mm",SW_SPST_B3U-1000P,SMD,
18,"C1,C2",2,Panasonic,EEE-FK1V101GP,"Aluminium electrolytic capacitor 100 uF 35 V, SMD 8 x 10.2 mm",CP_Elec_8x10,SMD,
19,"C3,C4",2,,,"Ceramic capacitor 10 uF 25 V X5R, 1206",C_1206_3216Metric,SMD,Any brand
20,"C5,C9",2,,,"Ceramic capacitor 10 uF 16 V X5R, 0805",C_0805_2012Metric,SMD,Any brand
21,C6,1,,,"Ceramic capacitor 22 uF 10 V X5R, 0805",C_0805_2012Metric,SMD,Any brand
22,"C7,C10,C13,C14,C15",5,,,"Ceramic capacitor 100 nF 50 V X7R, 0603",C_0603_1608Metric,SMD,Any brand
23,C8,1,,,"Ceramic capacitor 1 uF 16 V X7R, 0603",C_0603_1608Metric,SMD,Any brand
24,"R1,R2",2,,,"Resistor 5.1 k 1%, 0603",R_0603_1608Metric,SMD,Any brand
25,"R3,R4,R5,R6,R8,R9,R11",7,,,"Resistor 10 k 1%, 0603",R_0603_1608Metric,SMD,Any brand
26,"R10,R12,R14,R15",4,,,"Resistor 1 k 1%, 0603",R_0603_1608Metric,SMD,Any brand
27,R13,1,,,"Resistor 330 1%, 0603",R_0603_1608Metric,SMD,Any brand
1 Item # Designator Qty Manufacturer Mfg Part # Description / Value Package / Footprint Type Notes
2 1 U1 1 Espressif ESP32-WROOM-32E-N8 Wi-Fi + Bluetooth module, 8 MB flash, PCB antenna ESP32-WROOM-32E SMD
3 2 U2 1 WCH CH340C USB to UART bridge, SOIC-16 SOIC-16_3.9x9.9mm_P1.27mm SMD
4 3 U3 1 Advanced Monolithic Systems AMS1117-3.3 LDO regulator 3.3 V 1 A, SOT-223 SOT-223-3_TabPin2 SMD Any AMS1117-3.3 equivalent ok
5 4 U4 1 Texas Instruments SN74AHCT1G125DBVR Single buffer, TTL-level input, SOT-23-5 SOT-23-5 SMD
6 5 PS1 1 RECOM R-78E5.0-0.5 Switching regulator 5 V 0.5 A, SIP-3 Converter_DCDC_RECOM_R-78E-0.5_THT Thru-Hole
7 6 J1 1 Same Sky (CUI Devices) PJ-063AH DC barrel jack, 2.0 mm pin, fits 5.5 x 2.1 mm plugs BarrelJack_CUI_PJ-063AH_Horizontal Thru-Hole
8 7 J2 1 Korean Hroparts Elec TYPE-C-31-M-12 USB-C receptacle, USB 2.0, 16 pin USB_C_Receptacle_HRO_TYPE-C-31-M-12 SMD
9 8 J3,J4 2 JST B4B-XH-A(LF)(SN) XH header, 4 pin, 2.5 mm pitch, vertical JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical Thru-Hole
10 9 J5,J6,J7 3 JST B3B-XH-A(LF)(SN) XH header, 3 pin, 2.5 mm pitch, vertical JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical Thru-Hole
11 10 J8 1 Sullins PRPC004SAAN-RC Male pin header 1 x 4, 2.54 mm pitch, vertical PinHeader_1x04_P2.54mm_Vertical Thru-Hole
12 11 A1,A2 4 Sullins PPTC081LFBN-RC Female pin header 1 x 8, 2.54 mm pitch, 8.5 mm tall Pololu_Breakout-16_15.2x20.3mm Thru-Hole 2 headers per driver (4 total). Sockets only: the DRV8825 modules are supplied by me
13 12 D1 1 SS34 Schottky diode 40 V 3 A, SMA D_SMA SMD Any brand
14 13 D2,D3 2 B5819W Schottky diode 40 V 1 A, SOD-123 D_SOD-123 SMD Any brand
15 14 D4 1 LED green, 0603 LED_0603_1608Metric SMD Any brand
16 15 D5 1 LED blue, 0603 LED_0603_1608Metric SMD Any brand
17 16 Q1,Q2 2 onsemi MMBT3904LT1G NPN transistor 40 V 200 mA, SOT-23 SOT-23 SMD Any MMBT3904 ok
18 17 SW1,SW2 2 Omron B3U-1000P Tactile switch, SMD, 3 x 2.5 mm SW_SPST_B3U-1000P SMD
19 18 C1,C2 2 Panasonic EEE-FK1V101GP Aluminium electrolytic capacitor 100 uF 35 V, SMD 8 x 10.2 mm CP_Elec_8x10 SMD
20 19 C3,C4 2 Ceramic capacitor 10 uF 25 V X5R, 1206 C_1206_3216Metric SMD Any brand
21 20 C5,C9 2 Ceramic capacitor 10 uF 16 V X5R, 0805 C_0805_2012Metric SMD Any brand
22 21 C6 1 Ceramic capacitor 22 uF 10 V X5R, 0805 C_0805_2012Metric SMD Any brand
23 22 C7,C10,C13,C14,C15 5 Ceramic capacitor 100 nF 50 V X7R, 0603 C_0603_1608Metric SMD Any brand
24 23 C8 1 Ceramic capacitor 1 uF 16 V X7R, 0603 C_0603_1608Metric SMD Any brand
25 24 R1,R2 2 Resistor 5.1 k 1%, 0603 R_0603_1608Metric SMD Any brand
26 25 R3,R4,R5,R6,R8,R9,R11 7 Resistor 10 k 1%, 0603 R_0603_1608Metric SMD Any brand
27 26 R10,R12,R14,R15 4 Resistor 1 k 1%, 0603 R_0603_1608Metric SMD Any brand
28 27 R13 1 Resistor 330 1%, 0603 R_0603_1608Metric SMD Any brand