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The Raspberry Pi Ruler Gadget

fun with a time-of-flight sensor

The Raspberry Pi Ruler Gadget
Although designed as a giveaway gadget for trade shows and similar events where Elektor is attending, this ruler can electronically measure distances of up to two metres with the help of a VL53L0X time-of-flight (ToF) sensor.
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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


R1-R22 = 470Ω, SMD 0805



LED1-LED22 = green, SMD 0805



40-way (2x20) pinheader socket, 0.1” pitch, 16mm tall (e.g. Samtec ESQ-120-33-T-D)

6-pin SIL pinheader, 0.1” pitch

6-way SIL pinheader socket, 0.1” pitch

VL53L0X ToF sensor module

PCB # 180483-1 from the Elektor Store

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