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Tommy Yu

Open drivers and a verified UART protocol reference for ERDI 905 nm laser rangefinder modules. Notes on what datasheets leave out.

Joined on Oct 8, 2026

Tommy Yu

Oct 26

What a first article inspection for a rangefinder actually contains

#hardware #manufacturing #embedded #codequality

3 min read

Tommy Yu

Oct 25

Why "eye safe" is a wavelength argument, not a marketing claim

#hardware #embedded #robotics #safety

3 min read

Tommy Yu

Oct 25

Five things in a rangefinder protocol document that cost two weeks each

#embedded #arduino #hardware #c

3 min read

Tommy Yu

Oct 25

Your lidar says 40 m and reaches 9 m: the four numbers that decide a real range

#hardware #embedded #iot #arduino

3 min read

Tommy Yu

Oct 22

What a laser rangefinder module actually costs: 59 published prices

#hardware #embedded #robotics #opensource

5 min read

Tommy Yu

Oct 8

What a 905 nm rangefinder datasheet does not tell you

#hardware #iot #arduino #embedded

7 min read

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