From a685fae02077d60d8dee068601f8beee96753433 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Alse=CC=81r?= <henrik.alser@me.com>
Date: Sun, 17 Jan 2021 23:09:33 +0100
Subject: [PATCH] Cleanup

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 6360726..d31070b 100644
--- a/README.md
+++ b/README.md
@@ -96,7 +96,7 @@ The crystal will resonate at a specified frequency. Its waveform will be used as
 - Find the device/Crystal.
 - Place it close to `PH0` and `PH1`, pin 5 and 6 (`RCC_OS_CIN` and `RCC_OSC_OUT`).
 - Connect the component with wires to the mentioned pins. Value 12MHz.
-- Connect one 22p capacitor to each pin on the crystal and connect the other end of the capacitors to GND.
+- Connect one 22pF capacitor to each pin on the crystal and connect the other end of the capacitors to GND.
 
 ### 7) Serial Wire Debug (SWD) connector
 
@@ -117,7 +117,7 @@ One easy way to get power to your project is through USB. It can deliver up to 1
 
 ### 9) 3.3v Power Supply
 
-The MCU needs a stable voltage. A common for digital components is 3.3v. To this end we will use a fixed LDO (low dropout) regulator, with a 5v input (powered from the USB connector) and 3.3v output. We will use the [AP2125N-3.3TRG1](https://www.elfa.se/en/ldo-voltage-regulator-3v-360ma-sot-23-diodes-incorporated-ap2125n-3trg1/p/30041163)
+The MCU wants to be powered from a 3.3V rail. To this end we will use a fixed LDO (low dropout) linear regulator, to convert a 5V input (from the USB connector) to a 3.3V output. We will use the [AP2125N-3.3TRG1](https://www.elfa.se/en/ldo-voltage-regulator-3v-360ma-sot-23-diodes-incorporated-ap2125n-3trg1/p/30041163) for this.
 
 Look in the [datasheet](https://www.elfa.se/Web/Downloads/_t/ds/AP2125_eng_tds.pdf) for a typical application circuit. Later we will design the power supply for the PWM3389 sensor, which is a bit trickier.
 
-- 
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