Breadboard Logic Probe

Breadboard Logic Probe

Breadboard Logic Probe
a breadboard friendly logic probe that indicates logic HIGH, LOW, and PULSE.

Design Documents

Schematic Diagramschematic_J413A_breadboard_logic_probe.pdf
Bill of MaterialsBreadboard Logic Probe BOM.pdf
PCB Gerbersgerbers_J413A_breadboard_logic_probe.zip
Source Codecode_J413A_breadboard_logic_probe.zip

Specifications

Power Requirement3.3V to 5.0V, 25mA maximum
InputTTL or CMOS levels, jumper selectable
IndicatorsHIGH, LOW, PULSE

Operation
The Logic Probe PCB is designed to plug into 5 rows of a standard breadboard.
picture

There are 5 breadboard pins, at least 3 of which must be connected

1) VCC
2) VCC
Logic supply voltage, 3.3V to 5.0V,
connect to either power pin
3) INSignal Input
4) GND
5) GND
Logic ground,
connect to either ground pin

LED Indicators

LeftGreenLOW
MiddleYellowPULSE
RightRedHIGH

Indicator LEDs

The "TTL" jumper determines what logic levels will be used

No JumperCMOS logic levels
Jumper InstalledTTL levels

Purchase

Available fully assembled and tested
Buy it at Tindie