Bill of material

Overview of parts

Mandatory

0. bcMeter Pi Hat (order it prepopulated (~95€) or build your own by producing the PCB and assembling the components (~5€ without componentes each for 10+ orders on jlcpcb or similar))
1. Raspberry Pi 3A or Zero 2 W (~35€)
2. MicroSD Card(~10€)
3. Power Supply 5.25V/2A (~15€)
4. Air Pump (~10-200€)

Download 3D Printable files (A-E)

STL for 3D Printing (SLA or FDM) github repository - printing material

Use black filament / resin. FDM is prone to leakage if not properly set up. If possible, mix resin with flex resin.

We have a stock of populated PCBs available, just contact us, if interested.

Filter Paper (H)

We're using AE33 filter Paper with bcMeter. You can use any filter which scattering factor is know.
You may send us a sample of your filter paper and we happily calibrate bcMeter with it!
We can also provide you with a small amount of filter paper to get started.

Amazon Links for additional Material (I)

Description	Quantity	Price	Link
22AWG Wire	1	$9.99	https://www.amazon.com/NorthPada-Electronic-Electrical-Tinned-Voltage/dp/B08979VWP5/ref=sr_1_15?dchild=1&keywords=22+awg+wire&qid=1626014422&sr=8-15
Hot Glue	1	$6.99	https://www.amazon.com/Baffo-Adhesive-Project-Craftwork-Diameter/dp/B07XC3VJRH/ref=sr_1_8?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=hot+glue+black+sticks&qid=1626014378&refresh=1&sr=8-8
Rubber Band	1	$12.95	https://www.amazon.com/Neoprene-Rubber-Black-Self-Adhesive-Sponge/dp/B00EE9HTPW/ref=sr_1_10?dchild=1&keywords=Rubber+Shore+A+tape&qid=1626014507&sr=8-10
Silicone Hose	1	$3.99	https://www.amazon.com/Silicone-Vacuum-Hose-Performance-Black/dp/B07792YB15/ref=sr_1_14?dchild=1&keywords=silicone+hose+5mm&qid=1626014620&sr=8-14
m3 Threads	1	$12.59	https://www.amazon.com/iplusmile-Embedment-Threaded-Printing-Projects/dp/B087NBYF65/ref=sr_1_43?dchild=1&keywords=m3+screw+threads&qid=1626014698&sr=8-43
M3 Phillips Screw	1	$7.29	https://www.amazon.com/uxcell-Stainless-Phillips-Machine-Combine/dp/B07P3ZJN2K/ref=sr_1_18?dchild=1&keywords=m3+screws+8mm&qid=1626014873&sr=8-18
M3x8mm Hex Screws	1	$8.49	https://www.amazon.com/uxcell-M3x8mm-Thread-Button-Socket/dp/B01B1OD62C/ref=sr_1_3?dchild=1&keywords=m3+screws+8mm&qid=1626014812&sr=8-3
SanDisk 16GB 3-Pack	1	$17.48	https://www.amazon.com/SanDisk-3-Pack-microSDHC-Memory-3x16GB/dp/B089DPCJS1/ref=sr_1_11?dchild=1&keywords=microSD+Card&qid=1626014929&refinements=p_36%3A1253503011&rnid=386442011&s=pc&sr=1-11

Component locations on PCB

#	Position	Product number	Description	Quantity per bcMete	Price per component	Quantity 1 bcMeter	Sum	VAT 19%	Total
1	C1	EEE-FK1K4R7L	4.7uF	1	0,50 €	1	0,50 €	0,10 €	0,60 €
2	C2, C12	CC0805KRX7R9BB104	100nF	2	0,10 €	2	0,20 €	0,04 €	0,24 €
3	C3, C13	AC0805KKX7R9BB105	1uF	2	0,50 €	2	1,00 €	0,19 €	1,19 €
4	C4	EEE-FP1C101AP	100uF	1	0,60 €	1	0,60 €	0,11 €	0,71 €
5	C5	TMCMC1D106MTRF	10uF Tantal	1	1,00 €	1	1,00 €	0,19 €	1,19 €
6	C6	CC0805KRX7R9BB104	0u1	1	0,10 €	1	0,10 €	0,02 €	0,12 €
7	C7, C10	CC0805KPX7RABB102	1nF	2	0,10 €	2	0,20 €	0,04 €	0,24 €
8	C8, C11	AC0805JRX7R9BB103	10nF	2	0,25 €	2	0,50 €	0,10 €	0,60 €
9	C9, C14	EEE-FN1E100R	10uF	2	0,40 €	2	0,80 €	0,15 €	0,95 €
10	C15	TMCMC1C226MTRF	22uF Tantalum	1	0,95 €	1	0,95 €	0,18 €	1,13 €
11	D1, D2	Generic	IRL81A	2	1,00 €	2	2,00 €	0,38 €	2,38 €
12	D3	Generic	Status LED	0	0,20 €	0	0,00 €	0,00 €	0,00 €
13	D4	Generic	LED_RABG	0	0,50 €	0	0,00 €	0,00 €	0,00 €
14	DS1	Display	OLED IIC	1	5,00 €	1	5,00 €	0,95 €	5,95 €
15	J1	D6F-P0010A1	Omron D6F	1	49,60 €	1	49,60 €	9,42 €	59,02 €
16	J2	Generic 2.54mm Header	TMP	1	0,20 €	1	0,20 €	0,04 €	0,24 €
17	J3	Generic 2.54mm Header	3.3V Header	1	0,20 €	1	0,20 €	0,04 €	0,24 €
18	J4	Generic 2.54mm Header	5V Header	1	0,20 €	1	0,20 €	0,04 €	0,24 €
19	J5	Generic 2.54mm Header	Pump 5V Header	1	0,20 €	1	0,20 €	0,04 €	0,24 €
20	J6	Generic 2.54mm Header	Raspberry_Pi_2_3	1	0,20 €	1	0,20 €	0,04 €	0,24 €
21	J7	Generic 2.54mm Header	heater	1	0,20 €	1	0,20 €	0,04 €	0,24 €
22	J8	Generic 2.54mm Header	DS18B20 Temp Sensor	0	0,20 €	0	0,00 €	0,00 €	0,00 €
23	Q1, Q2	Generic	LPT80A	2	1	2	2,00 €	0,38 €	2,38 €
24	Q3, Q4	MMBT3904 RFG	MMBT3904	2	0,2	2	0,40 €	0,08 €	0,48 €
25	Q5	SI2318DS-T1-GE3	N-Channel 40-V (D-S) MOSFET	1	0,5	1	0,50 €	0,10 €	0,60 €
26	R1, R2	CRCW08054K70JNEA	4k7	2	0,1	2	0,20 €	0,04 €	0,24 €
27	R3, R4	CRGCQ0805J100R	100R	2	0,2	2	0,40 €	0,08 €	0,48 €
28	R5	RC0805FR-0710KL	10k	1	0,1	1	0,10 €	0,02 €	0,12 €
29	R6	RC0805FR-07470RP	470R	1	0,11	1	0,11 €	0,02 €	0,13 €
30	R7	RC0805FR-0710KL	4K7-10K	1	0,1	1	0,10 €	0,02 €	0,12 €
31	R8, R10	CHP0805QJW-4R7ELF	4R7	2	0,35	2	0,70 €	0,13 €	0,83 €
32	R9	ERJ-6GEYJ560V	56R	1	0,1	1	0,10 €	0,02 €	0,12 €
33	SW1	Generic 2.54mm Header	Interrupt	1	0,1	1	0,10 €	0,02 €	0,12 €
34	U1	MCP3428-E/SL	MCP3428	1	6	1	6,00 €	1,14 €	7,14 €
35	U2	LM1117MPX-3.3/NOPB	AMS1117-3.3	1	1,2	1	1,20 €	0,23 €	1,43 €
36	U3	SHT40-AD1B-R2	SHT4x	1	4	1	4,00 €	0,76 €	4,76 €
37	PUMP		D15S PWM Controllable Membrane Pump	1,0	95	1	95,00 €	18,05 €	113,05 €
38	PCB		Circuit board	1,0	10,00 €	1	10,00 €	1,90 €	11,90 €
39	HEAT		Heating element	1,0	5,00 €	1	5,00 €	0,95 €	5,95 €
40	CASE		3D printing housing	1,0	45,00 €	1	45,00 €	8,55 €	53,55 €
41	MAT		Material costs	1,0	15,00 €	1	15,00 €	2,85 €	17,85 €
42	PSU		5V2A Power Supply + USB Cable	1,0	10,00 €	1	10,00 €	1,9	11,9

PCB / Gerber Files for bcMeter

find gerber files for PCB fabrication on on Github)