Whilst the Saleae is a great little device (and I'm awaiting delivery on a pre-ordered Logic Pro 16) I don't feel it can't be compared to the PICKit Serial Analyzer solely on the basis of the number of channels it has.
Unfortunately (for Microchip's sales and marketing team) the word 'Analyzer' in the product title does it a disservice. For instance - rather than just monitor, record and analyze (like the Saleae) it can:
- act as an I2C master device - sending commands and receiving responses (either individual or scripted) to and from slave devices
- mimic an I2C slave device by receiving and responding to I2C commands from a master
The Saleae can neither send nor respond...
Then consider that the PICKit Serial can do pretty much the same with SPI, LIN and USART protocols, and on top of that up to 4 devices can be plugged in at a time to give multiple bi-directional channels.
In my opinion it's a great little (and largely overlooked) piece of kit that has its place alongside the Saleae for sure (which unquestionably wins in terms of speed), but for these protocols it's more than up to the job.
Agreed - investing time to build a clone of this little device is mostly negated by its low price. However building 4 in the same enclosure (perhaps an old 4-port USB hub) could be an interesting way to pass an evening.