Whereas the associated fee and measurement of check gear have each fallen dramatically up to now decade, few, if something in the marketplace right this moment can compete with the tiny Flea-Scope by Richard Testardi. This ~$13 oscilloscope, logic analyzer, and waveform generator combo is able to taking 18 million samples per second (Msps), and exists as a PCB barely bigger than two quarters. Maybe better of all, it operates through any Chromium-based net browser operating on a pc, pill, or telephone, with out extra software program set up!
The Flea-Scope is predicated on the PIC32MK MCU — and PCB recordsdata, the BOM, and construct directions may be discovered right here. It makes use of principally SMD parts, which in Testardi’s case are actually reflowed utilizing a toaster managed by one other Flea-Scope. When you’ve gotten previous or sidestepped this little chicken-and-egg downside, you’ll additionally wish to hand solder solder on a BNC connector for probe attachment.
The machine is programmed by the board’s six-pin ICSP header, after which you’ll be able to plug it in through USB and open a browser to entry its GUI. As outlined in its guide, the Flea-Scope contains a single 18 Msps analog enter with a 10-bit ADC decision, together with 9 digital logic analyzer pins. It additionally has a set off out pin to permit two Flea-Scopes to work collectively like a multi-channel oscilloscope or a extra succesful logic analyzer.
Whereas this small unit may not substitute a financial institution of pricey check gear, for excessive portability at a near-disposable worth stage, it could seem laborious to beat the Flea-Scope!
