Path: ...!news.mixmin.net!news.swapon.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Michael Schwingen Newsgroups: comp.sys.raspberry-pi Subject: Re: Need help with PI PICO... Date: 29 Mar 2024 15:02:34 GMT Lines: 16 Message-ID: References: <20240323183723.b2902fb94d75422b924c1bc7@eircom.net> <20240324072346.81064ff46570e669982a1f4e@eircom.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: individual.net oYokFPwVAs8IMubw7WYVlQXT0x/MqHSjuIx6tXLN9tAtDbJYEf Cancel-Lock: sha1:M4zyBWJgFnogHY9PYfQV0IJ/h4Y= sha256:mwnLGaESAuneerfyKNu8QEA0Q4rrMTVa0HAMiVx0j24= User-Agent: slrn/1.0.3 (Linux) Bytes: 1568 On 2024-03-25, The Natural Philosopher wrote: > > I have noticed that with absoluteley no change in sensor location I get > up to ± 0.5cm variation in delay. Sounds reasonable (or even quite good) for such a cheap sensor. Does yours come with a datasheet that specifies accuracy limits? The datasheet on the Sparkfun website claims "the ranging accuracy can reach to 3mm", but does not give any guaranteed limits - and I believe there are lots of clone parts thay may be even worse. cu Michael -- Some people have no respect of age unless it is bottled.