From fa486f0f57c80a735f8dc6df65930ad03e828804 Mon Sep 17 00:00:00 2001
From: "Sam Calisch (admin)" <calisch@mit.edu>
Date: Sun, 1 Oct 2017 14:46:58 -0400
Subject: [PATCH] Update README.md

---
 README.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/README.md b/README.md
index 5eb0e88..8ee0602 100644
--- a/README.md
+++ b/README.md
@@ -88,4 +88,15 @@ reset
 shutdown
 ```
 
+## Hello worlds
+
+* <a href='modules/spi'>SPI (Serial Peripheral Interface)</a>
+
+* <a href='modules/twi'>TWI (i.e., I2C)</a>
+
+* <a href='modules/uarte'>UARTE (i.e., UART with DMA)</a>
+
+* <a href='modules/pwm'>PWM (Pulse width modulation)</a>
+
+
 
-- 
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