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chore(outputs): add bom, schematic pdf/svg, and erc report for current design

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Snapshot the post-boost-integration design outputs: BOM CSV, schematic
PDF and SVG exports, and the ERC report against the current schematic.

Confidence: high
Scope-risk: narrow
Directive: These are regenerated outputs - refresh them when the schematic changes
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0xWheatyz
2026-05-14 22:35:14 -04:00
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Reference,Component,Value,Qty,Package,AliExpress Search/Link,AliExpress Price Est.,DigiKey Part Number,DigiKey Price Est.,Notes
ESP32-WROOM1,ESP32-WROOM-32 DevKit,ESP32-C3-DevKitM-1,1,Module,"ESP32 WROOM 32 development board 30 pin",~$4.00,N/A (use Adafruit/SparkFun),,Type-C versions slightly more
A4988,A4988 Stepper Motor Driver,Pololu_Breakout_A4988,1,Module,"A4988 stepper motor driver module heatsink",~$2.00,Pololu #1182,~$5.95,Usually comes with heatsink. Packs of 5 ~$5
U1,TPS61088 Boost Converter IC,TPS61088RHLR,1,QFN-20 3.5x3.5mm,"TPS61088RHLR QFN20",~$2.28/ea (3pcs min ~$6.84),296-40481-1-ND,~$3.89,LCSC C87357 ~$0.44/ea as alternative
R1,Resistor 0805 1%,10K,1,0805,"0805 resistor 10K 1%",~$1.50/100pcs,RC0805FR-0710KL,~$0.10,
R2,Resistor 0805 1%,10K,1,0805,"0805 resistor 10K 1%",~$1.50/100pcs,RC0805FR-0710KL,~$0.10,
R5,Resistor 0805 1%,10K,1,0805,"0805 resistor 10K 1%",~$1.50/100pcs,RC0805FR-0710KL,~$0.10,
R3,Resistor 0805 1% (feedback divider),30.1K,1,0805,"0805 resistor 30.1K 1% SMD",~$1.50/100pcs,RC0805FR-0730K1L,~$0.10,E96 value - not in basic kits. 1% required.
R4,Resistor 0805 1% (feedback divider),190K,1,0805,"0805 resistor 190K 1% SMD",~$1.50/100pcs,RC0805FR-07190KL,~$0.10,E96 value - not in basic kits. 1% required.
C8,Capacitor 0805 C0G/NP0 50V,47pF,1,0805,"0805 47pF capacitor C0G",~$1.00/100pcs,Standard YAGEO/Samsung,~$0.10,C0G preferred for low-value caps
C9,Capacitor 0805 X7R 50V,100nF,1,0805,"0805 100nF 0.1uF capacitor",~$1.00/100pcs,Standard YAGEO/Samsung,~$0.10,Decoupling cap
C6,Capacitor 0805 X7R 50V,22nF,1,0805,"0805 22nF capacitor X7R",~$1.00/100pcs,Standard YAGEO/Samsung,~$0.10,TPS61088 compensation cap
C4,Capacitor 1206 X5R 25V,22uF,1,1206,"1206 SMD capacitor 22uF 25V",~$2.50/100pcs,GRM31CR61E226KE15L,~$0.50,Must be 25V+ rated for 12V output
C5,Capacitor 1206 X5R 25V,22uF,1,1206,"1206 SMD capacitor 22uF 25V",~$2.50/100pcs,GRM31CR61E226KE15L,~$0.50,Must be 25V+ rated for 12V output
C10,Capacitor 1206 X5R 25V,22uF,1,1206,"1206 SMD capacitor 22uF 25V",~$2.50/100pcs,GRM31CR61E226KE15L,~$0.50,Must be 25V+ rated for 12V output
C11,Capacitor 1206 X5R 25V,22uF,1,1206,"1206 SMD capacitor 22uF 25V",~$2.50/100pcs,GRM31CR61E226KE15L,~$0.50,Must be 25V+ rated for 12V output
C3,Capacitor SMD Electrolytic 25V,100uF,1,6.3x5.8mm,"100uF 25V SMD aluminum electrolytic capacitor 6.3mm",~$1.30/20pcs,Standard Nichicon/Panasonic,~$0.50,Verify pad matches KiCad footprint
L1,Power Inductor Shielded SMD,2.2uH,1,12.6x12.6mm,"SRP1265 2.2uH inductor",~$3.00,SRP1265A-2R2M (Bourns),~$2-3,Must handle >=10A. Critical for TPS61088. DigiKey safest source.
SW1,JST EH 3-pin Header,B3B-EH-A,1,Through-hole,"JST EH 3 pin connector 2.5mm header",~$1.00/10pcs,B3B-EH-A(LF)(SN),~$0.13,2.5mm pitch. Buy matching housings + crimp pins.
MotorPower1,Screw Terminal 3-pin 5mm pitch,KF301-5.0-3P,1,Through-hole,"KF301 3 pin 5mm screw terminal PCB",~$0.50-1.00,Standard part,~$0.50-1.00,KF301-5.0-3P common Chinese equivalent
StepperConnection1,JST XH 4-pin Header,B4B-XH-A,1,Through-hole,"JST XH 4 pin 2.54mm connector header",~$1.00/20pcs,B4B-XH-A(LF)(SN),~$0.15,2.54mm pitch. Buy matching housings + crimp pins.
1 Reference Component Value Qty Package AliExpress Search/Link AliExpress Price Est. DigiKey Part Number DigiKey Price Est. Notes
2 ESP32-WROOM1 ESP32-WROOM-32 DevKit ESP32-C3-DevKitM-1 1 Module ESP32 WROOM 32 development board 30 pin ~$4.00 N/A (use Adafruit/SparkFun) Type-C versions slightly more
3 A4988 A4988 Stepper Motor Driver Pololu_Breakout_A4988 1 Module A4988 stepper motor driver module heatsink ~$2.00 Pololu #1182 ~$5.95 Usually comes with heatsink. Packs of 5 ~$5
4 U1 TPS61088 Boost Converter IC TPS61088RHLR 1 QFN-20 3.5x3.5mm TPS61088RHLR QFN20 ~$2.28/ea (3pcs min ~$6.84) 296-40481-1-ND ~$3.89 LCSC C87357 ~$0.44/ea as alternative
5 R1 Resistor 0805 1% 10K 1 0805 0805 resistor 10K 1% ~$1.50/100pcs RC0805FR-0710KL ~$0.10
6 R2 Resistor 0805 1% 10K 1 0805 0805 resistor 10K 1% ~$1.50/100pcs RC0805FR-0710KL ~$0.10
7 R5 Resistor 0805 1% 10K 1 0805 0805 resistor 10K 1% ~$1.50/100pcs RC0805FR-0710KL ~$0.10
8 R3 Resistor 0805 1% (feedback divider) 30.1K 1 0805 0805 resistor 30.1K 1% SMD ~$1.50/100pcs RC0805FR-0730K1L ~$0.10 E96 value - not in basic kits. 1% required.
9 R4 Resistor 0805 1% (feedback divider) 190K 1 0805 0805 resistor 190K 1% SMD ~$1.50/100pcs RC0805FR-07190KL ~$0.10 E96 value - not in basic kits. 1% required.
10 C8 Capacitor 0805 C0G/NP0 50V 47pF 1 0805 0805 47pF capacitor C0G ~$1.00/100pcs Standard YAGEO/Samsung ~$0.10 C0G preferred for low-value caps
11 C9 Capacitor 0805 X7R 50V 100nF 1 0805 0805 100nF 0.1uF capacitor ~$1.00/100pcs Standard YAGEO/Samsung ~$0.10 Decoupling cap
12 C6 Capacitor 0805 X7R 50V 22nF 1 0805 0805 22nF capacitor X7R ~$1.00/100pcs Standard YAGEO/Samsung ~$0.10 TPS61088 compensation cap
13 C4 Capacitor 1206 X5R 25V 22uF 1 1206 1206 SMD capacitor 22uF 25V ~$2.50/100pcs GRM31CR61E226KE15L ~$0.50 Must be 25V+ rated for 12V output
14 C5 Capacitor 1206 X5R 25V 22uF 1 1206 1206 SMD capacitor 22uF 25V ~$2.50/100pcs GRM31CR61E226KE15L ~$0.50 Must be 25V+ rated for 12V output
15 C10 Capacitor 1206 X5R 25V 22uF 1 1206 1206 SMD capacitor 22uF 25V ~$2.50/100pcs GRM31CR61E226KE15L ~$0.50 Must be 25V+ rated for 12V output
16 C11 Capacitor 1206 X5R 25V 22uF 1 1206 1206 SMD capacitor 22uF 25V ~$2.50/100pcs GRM31CR61E226KE15L ~$0.50 Must be 25V+ rated for 12V output
17 C3 Capacitor SMD Electrolytic 25V 100uF 1 6.3x5.8mm 100uF 25V SMD aluminum electrolytic capacitor 6.3mm ~$1.30/20pcs Standard Nichicon/Panasonic ~$0.50 Verify pad matches KiCad footprint
18 L1 Power Inductor Shielded SMD 2.2uH 1 12.6x12.6mm SRP1265 2.2uH inductor ~$3.00 SRP1265A-2R2M (Bourns) ~$2-3 Must handle >=10A. Critical for TPS61088. DigiKey safest source.
19 SW1 JST EH 3-pin Header B3B-EH-A 1 Through-hole JST EH 3 pin connector 2.5mm header ~$1.00/10pcs B3B-EH-A(LF)(SN) ~$0.13 2.5mm pitch. Buy matching housings + crimp pins.
20 MotorPower1 Screw Terminal 3-pin 5mm pitch KF301-5.0-3P 1 Through-hole KF301 3 pin 5mm screw terminal PCB ~$0.50-1.00 Standard part ~$0.50-1.00 KF301-5.0-3P common Chinese equivalent
21 StepperConnection1 JST XH 4-pin Header B4B-XH-A 1 Through-hole JST XH 4 pin 2.54mm connector header ~$1.00/20pcs B4B-XH-A(LF)(SN) ~$0.15 2.54mm pitch. Buy matching housings + crimp pins.