presence-sensor/BOM.csv at 3cbe4a3dfdd714e51ba1597591e08fde48878644

Files

root 0240020cd2 Initial design: ESP32-S3 presence sensor with camera, mmWave, PIR, temp/humidity, light

- KiCad schematic and PCB layout (45x35mm board)
- Full BOM with JLCPCB part numbers
- ESPHome firmware configuration
- 3D-printable wall-mount enclosure (OpenSCAD + STL)
- Pin mapping and power budget documentation

2026-03-29 12:53:54 -05:00

2.9 KiB

Raw Blame History

1	Reference	Value	Footprint	JLCPCB_Part	Quantity	Description	Unit_Price_Est
2	U3	ESP32-S3-WROOM-1-N16R8	RF_Module:ESP32-S3-WROOM-1	C2913202	1	WiFi+BLE MCU 16MB Flash 8MB PSRAM	$2.80
3	U2	AMS1117-3.3	Package_TO_SOT_SMD:SOT-223-3_TabPin2	C6186	1	3.3V LDO Regulator 1A	$0.08
4	U4	AP2112K-1.8	Package_TO_SOT_SMD:SOT-23-5	C51118	1	1.8V LDO for camera DOVDD	$0.10
5	U5	AP2112K-2.8	Package_TO_SOT_SMD:SOT-23-5	C51114	1	2.8V LDO for camera AVDD	$0.10
6	U6	SHT41	Sensirion_DFN-4-1EP_1.5x1.5mm	C2911456	1	Temp/Humidity ±0.2°C I2C	$1.20
7	U7	BH1750FVI	Package_SO:WSOF-6_1.4x1.7mm	C78960	1	Ambient Light 1-65535 lux I2C	$0.50
8	U1	USBLC6-2SC6	Package_TO_SOT_SMD:SOT-23-6	C7519	1	USB ESD Protection	$0.15
9	J1	USB_C_16P	Connector_USB:USB_C_Receptacle_GCT_USB4125	C2765186	1	USB-C 16pin receptacle	$0.30
10	J2	FPC_24P_OV5640	Connector_FFC-FPC:Molex_503480-2400	C2856805	1	24-pin 0.5mm FPC connector	$0.20
11	J3	LD2410C	Connector_PinHeader_1.27mm:PinHeader_1x05_P1.27mm	N/A	1	1.27mm 5-pin header for LD2410C	$0.05
12	J4	AM312_PIR	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm	N/A	1	2.54mm 3-pin header for AM312	$0.03
13	D1	LED_Blue	LED_SMD:LED_0402_1005Metric	C2286	1	Blue status LED 0402	$0.02
14	R1	1K	Resistor_SMD:R_0402_1005Metric	C11702	1	LED current limit	$0.01
15	R2	10K	Resistor_SMD:R_0402_1005Metric	C25744	1	PIR pulldown	$0.01
16	R3	4.7K	Resistor_SMD:R_0402_1005Metric	C25900	1	I2C SDA pull-up	$0.01
17	R4	4.7K	Resistor_SMD:R_0402_1005Metric	C25900	1	I2C SCL pull-up	$0.01
18	C1	10uF	Capacitor_SMD:C_0805_2012Metric	C15850	1	LDO input cap	$0.02
19	C2	22uF	Capacitor_SMD:C_0805_2012Metric	C45783	1	LDO output cap	$0.03
20	C3	100nF	Capacitor_SMD:C_0402_1005Metric	C1525	1	LDO decoupling	$0.01
21	C4	100nF	Capacitor_SMD:C_0402_1005Metric	C1525	1	ESP32 decoupling	$0.01
22	C5	100nF	Capacitor_SMD:C_0402_1005Metric	C1525	1	ESP32 decoupling	$0.01
23	C6	10uF	Capacitor_SMD:C_0805_2012Metric	C15850	1	ESP32 bulk cap	$0.02
24	C7	10uF	Capacitor_SMD:C_0805_2012Metric	C15850	1	Camera power filter	$0.02
25	C8	100nF	Capacitor_SMD:C_0402_1005Metric	C1525	1	Camera decoupling	$0.01
26	C9	10uF	Capacitor_SMD:C_0805_2012Metric	C15850	1	LD2410C decoupling	$0.02
27	C10	100nF	Capacitor_SMD:C_0402_1005Metric	C1525	1	SHT41 decoupling	$0.01
28	C11	100nF	Capacitor_SMD:C_0402_1005Metric	C1525	1	BH1750 decoupling	$0.01
29	SW1	BOOT	Button_Switch_SMD:SW_SPST_PTS810	C116501	1	Boot button (GPIO0)	$0.05
30	SW2	RESET	Button_Switch_SMD:SW_SPST_PTS810	C116501	1	Reset button (EN)	$0.05
31	H1	MountingHole	MountingHole:MountingHole_2.2mm_M2_Pad	N/A	1	M2 mounting hole	$0.00
32	H2	MountingHole	MountingHole:MountingHole_2.2mm_M2_Pad	N/A	1	M2 mounting hole	$0.00
33
34				MODULES (not on PCB - plug in)
35	MOD1	OV5640	Camera Module 5MP 120° wide-angle	N/A	1	24-pin FPC OV5640 module	$3.50
36	MOD2	HLK-LD2410C	24GHz mmWave Radar Module	N/A	1	5-pin presence radar	$2.50
37	MOD3	AM312	Mini PIR Sensor Module	N/A	1	3-pin PIR sensor	$0.50
38
39				TOTAL PCB COMPONENTS		28	~$5.50
40				TOTAL WITH MODULES		31	~$12.00
41				PCB FABRICATION (5pcs JLCPCB)			~$8.00
42				SMD ASSEMBLY (per board)			~$12.00
43				TOTAL PER BOARD (assembled)			~$32.00

2.9 KiB Raw Blame History

2.9 KiB

Raw Blame History