- on Test & Measurement
- Published in issue 5/2013 on page 46
Measuring barometric pressure and air temperature with a USB stick
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CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
R1-R5 = 4.7kOhm
C1 = 10µF 10V (X5R)
C2,C3 = 330nF (0603)
C4,C5 = 22pF (0603)
T1,T2 = 2N7002 (SOT232)
IC1 = AP1117E33G-13 (SOT-223)
IC2 = PIC18F14K50-I/SO, programmed, Elektor # 120481-41
IC3 = pressure sensor type BMP085 or BMP180 (Bosch Sensortec)
X1 = 12MHz quartz crystal, HC49US case
USB-A connector, surface mount, Lumberg type 2410 07
USB stick casing, type USB1SW, Conrad Electronics # 531275-89
PCB # 120481-1
Assembled and tested module, Elektor # 120481-91 
Project source and hex code files, Windows software and DLL with source code, free download from