New Custom Circuit Board Project- ProbeMaster is Born

Last week I finally started designing a project I’ve had in mind for several years. The concept is simple:

A basic breakout circuit board that I can connect to any device under test (DUT) and the result is many spare connections- some with on/off switches already in series and others unpopulated to add any components, connections and measuring equipment I desire.

ProbeMaster PCB

The PCB design was done in KiCad which turned out pretty great I trhink:

ProbeMaster PCB
ProbeMaster PCB

Boards should be here by the end of the week and I will start on the video. As always- source files are in my GitHub repo so you can make your own too.

MKme/probemaster: Probing breakout for hardware hacking. Hook measurement equipment & components into DUT (



The intent of this portable kit is to be able to make electronics projects anywhere I go.

The basics are in oscilloscope multimeter soldering equipment some parts and micro controllers. With these or do we know parts in a laptop computer I can build just about anything at least to the prototype phase

With a small amount of money you can re-create this kit with your own equipment starting small you can build it up as I did. check out the video for full instructions.

Antenna Tester Under $100?

Checking out more budget gear today- the Nano VNA Vector Network Anaylzer.

VNA I bought:

Cool VNA/RF videos:

More interesting VNA uses:

VNA firmware & PC software:


Display: 2.8 inch TFT (320 x240)

●RF Output: 0 dbm (±2dbm)

● Display: 2.8 inch TFT (320 x240)

● Size: 54mm x 85.5mm x 11mm

●Weight: 63 grams

● PCB: 50mm x 68mm x 10mm (without connector, lever switch)

● Measurement Frequency:10KHz – 1.5GHz

● Measurement range: 70dB (50kHz-300MHz), 60dB (300M-900MHz), 40dB (900M-1.5MHz) enable extended firmware

● USB interface: USB tyoe-C communication mode: CDC (serial)

● Power: USB 5V 120mA, can use battery powered, maximum charging current 0.8A (battery included )

● Number of scanning points: 101 (fixed)

● Display Tracking: 4, Marking: 4, Setting Save: 5


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#VNA #RF #Analyzer

NEW Way To Learn Programming & Electronics?

Checking out the new maker kit from Swift IO which allows hobbyists and makers to use a powerful processor and run Swift programming language in their projects.

This is a new way to learn programming Swift language on some easy hardware. Check out the swift kit here:

Gear I use in these videos➢

Board Features:

i.MX RT1052 Crossover Processor with Arm® Cortex®-M7 core @600MHz

Micro SD card slot, supporting standard and high capacity SD cards

Micro USB connector for power

On-board USB to UART for serial communication

46 GPIO on left and right edges

On-board GRB LED