Rev A — spec handoff + Objective 1 sourcing
Thought for 41 sec
Final BOM completion is done with zero missing-MPN rows. J3 and BZ1 remain on PCB and are excluded from PCBA placement.
No Basic-class exact match was available for 1.78 kΩ, 3.01 kΩ, 90.9 kΩ, 3.48 kΩ, 178 kΩ, and 10 µF; Extended parts were assigned. Note: C14’s sourcing metadata is 0603, while its existing physical footprint remains 0805 because layout changes were prohibited.
sentry-node-v1-bom-jlcpcb.csv
Comment Designator Footprint JLCPCB Part # LCSC Part # TMB12A03 BZ1 Through Hole D12mm P7.6mm C96222 CL10A475KP8NNNC C1, C2, C3 C1705 GRM188R61A226ME15L C6, C7, C8 C0603 C167429 CL10B104KB8NNNC C10, C11, C15, C16, C18, C20, C22, C25 C_0603_1608Metric C1591 CL10A106KP8NNNC C12, C4, C5, C9 C19702 CL10A105KB8NNNC C13, C17, C19, C21, C23 C_0603_1608Metric C15849 MMASL168BB5106MTNA01 C14 C_0603_1608Metric C6594205 6SVPC330M C24 CAP-SMD_BD6.3-L6.6-W6.6-FD C139569 OCV101M0JTR-0606 C26 CAP-SMD_BD6.3-L6.6-W6.6-LS7.2-R-RD C134854 USBLC6-2SC6 D1 C7519 1N4148W-13-F D2, D3 SOD-123_L2.7-W1.6-LS3.7-RD C112342 BLM18AG601SN1D FB1 C19330 TYPE-C-31-M-12 J1 USB-C_SMD-TYPE-C-31-M-12 C165948 B2B-PH-SM4-TB(LF)(SN) J2 CONN-SMD_B2B-PH-SM4-TB-LF-SN C160352 XFL4020-152MEC L1 C3033018 WS2812B-V6 LED1 SMD5050-4P C52917433 ICS-43434 M1, M2, M3, M4 LGA-6 3.5x2.65mm bottom-port C5656610 MMBT2222ALT1G Q1, Q2 SOT-23 C82460 0603WAF5101T5E R1, R2 R_0603_1608Metric C23186 ERJ3EKF1781V R3 R_0603_1608Metric C403029 RC0603FR-073K01L R4 R_0603_1608Metric C137732 RC0603FR-0790K9L R5 R_0603_1608Metric C185305 CL0603FN3K48P R7 R_0603_1608Metric C52209912 ERJ-U03F1783V R10 R_0603_1608Metric C1859202 0603WAF1004T5E R11, R9 R_0603_1608Metric C22935 0603WAF1003T5E R12, R13, R8 R_0603_1608Metric C25803 0603WAF1002T5E R14, R6 R_0603_1608Metric C25804 0603WAF1001T5E R15, R16 R_0603_1608Metric C21190 0603WAF3300T5E R17 R_0603_1608Metric C23138 MK-12C02-G015 S1 SW-SMD_G-SWITCH_MK-12C02-G015 C2911519 K2-1114SA-A4SW-06 SW2, SW3 KEY-SMD_4P-L4.8-W4.6-P1.70-LS6.2 C136662 TS-1187A-B-A-B SW4 SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL-2 C318884 BQ24074RGTR U1 TPS63020DSJR U2 C15483 ESP32-S3-WROOM-1-N16R8 U3 WIRELM-SMD_ESP32-S3-WROOM-1 C2913202 Ra-01H U4 WIRELM-SMD_RA-01H C503593 sentry-node-v1-pickplace-jlcpcb-corrected.csv
Designator Layer Rotation Mid X Mid Y C1 Bottom 0 28mm -4.5mm C2 Bottom 0 28mm -7.5mm C3 Bottom 0 36mm -6mm C4 Bottom 0 -4mm 4.7mm C5 Bottom 0 -4mm -4.7mm C6 Bottom 0 3.8mm 4.7mm C7 Bottom 0 3.8mm -4.7mm C8 Bottom 0 0.8mm -4.7mm C9 Bottom 0 -18.5mm 12mm C10 Bottom 0 -4.8mm 3.3mm C11 Bottom 0 34mm -1mm C12 Bottom 0 -0.8mm 4.7mm C13 Bottom 0 -30.1mm 10.4mm C14 Bottom 0 -35.3mm 10.4mm C15 Bottom 0 -32.6mm 10.4mm C16 Bottom 0 -30.5mm -26.2mm C17 Bottom 0 -30.5mm -29.8mm C18 Bottom 90 30.5mm 29.8mm C19 Bottom 0 30.5mm 26.2mm C20 Bottom 90 -30.5mm 30mm C21 Bottom 0 -25.5mm 30mm C22 Bottom 90 25.5mm -24.59mm C23 Bottom 90 30.5mm -24.59mm C24 Top 0 -13mm -27mm C25 Top 0 -20mm 0mm C26 Top 0 9mm 22.5mm D1 Bottom 0 1mm -28mm D2 Top 0 -22mm 18mm D3 Top 0 -31mm -6mm FB1 Bottom 0 -14mm 12mm J1 Bottom 0 0mm -36.9mm J2 Bottom 270 37.44mm -25mm L1 Bottom 0 3.8mm 0mm LED1 Top 0 0mm 24mm M1 Bottom 0 -28.327mm -28mm M2 Bottom 0 27.673mm 28mm M3 Bottom 0 -28.327mm 28mm M4 Bottom 0 27.673mm -28mm Q1 Top 0 -10mm 18mm Q2 Top 0 -31mm -12mm R1 Bottom 0 -7mm -32mm R2 Bottom 0 -7mm -35mm R3 Bottom 0 26mm -10mm R4 Bottom 0 29mm -10mm R5 Bottom 0 32mm -10mm R6 Bottom 0 35mm -10mm R7 Bottom 0 26mm -13mm R8 Bottom 0 29mm -13mm R9 Bottom 0 0mm -3.4mm R10 Bottom 0 4.8mm 3mm R11 Bottom 0 9mm -8mm R12 Bottom 0 37mm -1mm R13 Bottom 0 34mm -3.5mm R14 Bottom 0 -32.5mm 11.6mm R15 Top 0 -14mm 15mm R16 Top 0 -27mm -12mm R17 Top 0 29mm 8mm S1 Top 180 22.0254mm 40.0435mm SW2 Top 0 -11mm 37mm SW3 Top 0 -20mm 37mm SW4 Top 0 0mm -26mm U1 Bottom 0 32mm -6mm U2 Bottom 0 -2mm 0mm U3 Bottom 270 -32.87mm 0mm U4 Top 180 30.5mm -8mm
Details: Final BOM Completion Report. ORDER HELD — no order placed.
tell me exactly out of the display header pins which one is meant for which pin on the 1.54 inch waveshare e ink display
Thought for 26 sec
The J3 display header is wired in the standard Waveshare 1.54-inch e-paper cable order:
Table
| J3 pin | Board net | Waveshare display pin |
|---|---|---|
| 1 | 3V3_SYS | VCC |
| 2 | GND | GND |
| 3 | SPI2_MOSI | DIN |
| 4 | SPI2_SCK | CLK |
| 5 | EPD_CS | CS |
| 6 | EPD_DC | DC |
| 7 | EPD_RST | RST |
| 8 | EPD_BUSY | BUSY |
So the connection is 1→VCC, 2→GND, 3→DIN, 4→CLK, 5→CS, 6→DC, 7→RST, 8→BUSY.
This assumes pin 1 is identified from the PCB footprint’s pin-1 marker. Do not determine pin 1 solely by viewing the header from the cable side, because the apparent order reverses when viewed from the opposite face.
Verify display connector
Create firmware pin map
Review display power
Create bring-up checklist
