28119 Parallax Inc, 28119 Datasheet - Page 122

• Manufacturer Part Number: 28119
• Description: KIT UNDERSTANDING SIGNALS
• Manufacturer: Parallax Inc

Specifications of 28119

• Lead Free Status: Contains lead
• Accessory Type: Oscilloscope
• Interface Type: USB
• For Use With/related Products: BASIC Stamp® 2 and Board of Education
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

P15
√
Once the circuit is built, connect the probes of the OPTAscope as shown Figure
8-15.
220
Ω
1 µF
10
kΩ
P15
P14
P13
P12
P11
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
Vss
X2
X3
Vdd
10
Pot
kΩ
Vin
20
Vss
Vin
kΩ
LM358
Vss
OPTA
OPTA
OPTA
scope
scope
scope
CH1
CH2
GND
Figure 8-14:
Op-amp with
potentiometer
Note: If using
the HomeWork
Board, leave
out the 220 Ω
resistor. It is
already built
into the board.
Figure 8-15:
Photoresistor
RC-Time circuit
wiring diagram
with
OPTAscope
probes
Note: If using
the HomeWork
Board, replace
the 220 Ω
resistor with a
jumper wire. A
220 Ω resistor
is already built
into the board.