Errata from class 8 July

presentations/arduino-intro-2016/talk.md

@@ -106,7 +106,7 @@ Thinker, Jack of all Trades - Master of None
 ## What is Arduino?
 
 \begin{center}
-$\mu$C + reset button + led + USB
+\includegraphics[width=0.75\textwidth]{images/arduino-overview.jpg}
 \end{center}
 
 It's a kit (on a board) with the bare minimum components to easily use the $\mu$C
@@ -607,7 +607,8 @@ increment
 ## Cylon Simulator: Part. 1; Pin Setup
 
 ~~~ C
-setup() {
+int delay_ms;
+void setup() {
 	pinMode(3, OUTPUT);
 	pinMode(4, OUTPUT);
 	pinMode(5, OUTPUT);
@@ -619,7 +620,7 @@ setup() {
 ## Cylon Simulator: Part. 2
 
 ~~~ C
-loop () {
+void loop () {
 	for (int i = 4; i <= 7; i++) {
 		delay_ms = analogRead(A0);
 		digitalWrite(i - 1, LOW);