My WP-34S : USB to Serial cable prototype

[jebem]

(01-23-2015 08:15 PM)Dave Frederickson Wrote:  You may have noticed that Harald offers several versions of USB-Serial adapters. The one to which I refer is the one with the two buttons, similar to the original RS-232 cable from HP.

However you choose to connect the adapter to the 30b, this is the easiest way to get a programming adapter (solder six wires and you're done). Harald also sells crystals and caps, so one-stop shopping! I chose to buy an adapter from a forum member, but if you want to build your own that's fine.

Dave

Thanks, Dave, for your advertizing here on Harald's solutions.
As you say, not everyone has the skills or the time to do it yourself and build from scratch, reinventing the wheel.

Concerning the WP-34S support, I have contributed with money not only on the Eric's keyboard overlays, but also for the WP-34S open source project.

That said, and to clarify my point once for all:
Harald's offerings do not fit my needs.

As stated in my initial post, I needed a flash box integrating:
- Independent power supply;
- Visual monitoring on all operations;
- Press buttons for the flash procedures;
- Maintain the calculator integrity by using a home made POGO connector;
- Low cost solution.

Like many others in this forum, I enjoy DIY and have the required skills, so I decided to create my own design to fulfill my requirements.
Because I like to share knowledge with others, I have shared the results here.
That's all.