Electronics Design
(Week 07).
group project: use
the test equipment in your lab to observe the operation of a microcontroller
circuit board Please refer to Francis
Lance section.
individual project:
redraw the echo
hello-world board, add (at least) a button
and LED
(with current-limiting resistor), check the design rules, make
it, and test
it. (extra credit: simulate its operation)
This
is the board we are to modify:
Find here the modified BOM
list based on the Hello world board with required additions:
|
Part |
Value |
Device |
|
RESONATOR |
20MHZ |
RESONATOR |
|
C2 |
1uF |
Capacitor - unpolarized |
|
IC1 |
ATTINY44-SSU |
ATTINY44-SSU |
|
R1 |
220 ohms |
Resistor |
|
R2 |
100K |
Resistor |
|
R4 |
0 ohms |
Resistor |
|
S1 |
|
6MM_SWITCH |
|
U$1 |
Blue emission |
LED |
|
U$3 |
|
AVR ISP SMD header |
|
U$4 |
|
FTDI SMD header |
