Logic Probe Kit

Intro: Logic Probe Kit

The following instructions will allow you to build a practical test tool for troubleshooting and analyzing digital and microcontroller circuits. The complete Assembly and Instruction Manual can be downloaded from the the following web link:Don's Projects

STEP 1: Bill of Materials

Here's the components needed to build the Logic Probe shown in the Bill of Materials (BOM) picture.

STEP 2: Logic Probe Circuit Schematic Diagram

Here's the circuit schematic diagram for the Logic Probe.

STEP 3: Adding Resistors

Add the 1K and 330/470 ohm resistors onto the pcb and solder.

STEP 4: Add the (2) Capacitors

Place the (2) 150nf (0.15uF) capacitors onto the pcb and solder.

STEP 5: Add Battery Clip, Battery, 7 Segment LED Display, and Hex Inverter IC

Add a 5V Voltage Regulator IC, (2) 14 Pin DIP sockets, the Hex Inverter IC and the 7 Segment LED display components onto the pcb and solder them.

STEP 6: Add the 9V Battery

Snap a 9V Battery to the battery clip. The Letter L should be displayed on the 7 Segment LED Display. Next soldered a red wire on the pcb where "Probe" is located. Last, soldered a black wire next to the black wire attached to the 9V Battery Clip. Now, the Logic Probe is ready to trouble or analyze digital or microcontroller circuits.

Comments

[hunaintariq]

i want to make this project on pcb kindly help me out please. ASAP

[material_hirdles]

Nice Job!!! Will it able to show pulse as well ???

It would be highly appreciated if u kindly post a demo video!!

Regards

[frollard]

Great Job! Hackaday tagged! Neat little build, I didn't see, where does one get a hold of the pcb?

[Mrdon219]

I'll be posting cost info on the kit at my blog within a couple of days.