Clemens Valens
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The sounding logic probe/tester

Even if you have an upmarket logic analyzer and are completely at ease with its operation, you are unlikely to use it to debug simple circuits like Arduino and Raspberry Pi add-on boards. That’s where Beep comes in.
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Download the BOM list
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.
Component list
Component List
Default: 5%, 0.25 W
R1, R3 = 2.2MOhm
R2 = 1MOhm
R4, R6 = 10kOhm
R5 = 1kOhm
R7 = 0Ohm (alternatively, wire piece)
Default: 0.2” pitch
C1,C2,C3 = 4.7µF 50V (2mm pitch)
C4 = 82pF
C5 = 470nF
C6 = 330nF
C7 = 100nF
IC1 = HEF4040BP (or equivalent)
IC2 = CD4050BE (or equivalent)
IC3 = HEF4093BP (or equivalent)
SW1 = slide switch, 2-pole 3-position (RS 702-3568 or similar)
BZ1 = buzzer 12mm diam.
JP1, JP2 = 2-pin pinheader
2 pcs DIP-16 IC socket (IC1 and IC2)
1 pc DIP-14 IC socket (IC3)
Case, Hammond 1593D
PCB, Elektor Store # 140410-1

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