From e4f7a7cfb654ccd2fb4117bbb1ad9957949e5de6 Mon Sep 17 00:00:00 2001 From: Denis Denisov Date: Tue, 10 Nov 2020 21:50:28 +0300 Subject: [PATCH] Update README.md --- README.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 51049be..e58b711 100644 --- a/README.md +++ b/README.md @@ -6,7 +6,7 @@ Simple thermometer using sound card input and output, a thermistor and couple of One should assemble components as shown on scheme below: -![Thermometer scheme](https://raw.githubusercontent.com/denis-ftc-denisov/soundthermo/master/scheme.png +![Thermometer scheme](scheme.png) * Lout should be connected to left channel of sound card output * Rout should be connected to right channel @@ -35,4 +35,4 @@ where `R1` and `R2` are resistor values. Unfortunately, due to different volumes really equation is like `Vout = R2 * Vin * k / (R1 + R2)`. So firstly we do measurement via right channel (where we know both `R1` and `R2`), to determine `k`. After that we repeat same measurement using left channel. Knowing `Vin`, `Vout`, `R2`, and `k` we can determine value of thermistor. -After that we compute real temperature via approximation formula. \ No newline at end of file +After that we compute real temperature via approximation formula.