Schematic
GND GND
VCC
VCC
GND
L293DD
1.5k
0.1uF
GND
1.5k
1.5k
1.5k
1.5k
0.01uF
1.5k
1.5k
1.5k
1.5k
GND
GND
GND
GND
GND
GND
GND
GND
V_EXT
V_EXT
VDD
VCC
VDD
VDD
VDD
GND
VDD
VDD
10k
10k
10k
10k
10k
10k
10k
10k
VDD
VDD
V_EXT
GND
1
2
3
4
J2
1 2
3 4
5 6
7 8
9 10
11 12
J1
1
2
3
4
5
6
J3
EN1
1
IN1
2
OUT1
3
GND1
4
GND2
5
GND3
6
GND4
7
OUT2
8
IN2
9
VS
10
EN2
11
IN3
12
OUT3
13
GND5
14
GND6
15
GND7
16
GND8
17
OUT4
18
IN4
19
VSS
20
IC1
R5
DC
B
A
POWER
C1
R1
R2
R3
R4
C2
R6
R7
R8
R9
E
F G H
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
1
2
3
JP1
H5-1
H5-2
1
2
H4
R10
R11
R12
R13
R14
R15
R16
R17
1
2
3
4
H1
1
2
3
4
H2
1
2
JP2
1
H6
1
2
H3
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
SIG2
SIG2
SIG2
SM2
SM2
SM2
SM1
SM1
SM1
SM3
SM3
SM3
SM4
SM4
SM4
SIG1
SIG1
SIG1
SIG3
SIG3
SIG3
SIG4
SIG4
SIG4
SIG5
SIG5
SIG5
SIG5
SIG7
SIG7
SIG7
SIG7
SIG6
SIG6
SIG6
SIG6
SIG8
SIG8
SIG8
SIG8
VDD
VDD
V_EXT
V_EXT
UI ECE 341 Lab
1
A
B
C
D
E
A
B
C
D
E
1 2 3 4 5 6
Board Mounting Holes
Power Select Jumper
32MX7 Signal Headers
Ground Header
Board VDD Power LEDBoard VDD Power Filter CapsSM Board to 32MX7 Board Connector
L293DD Stepper IC
4-Wire Stepper Motor Header
6-Wire Stepper Motor Header
External Power
32MX7 Signal LEDs
V_EXT Measure Point
LED Power