Hi , I hope I am in the right forum department?
I have a DS20UMD Hyperion Digital servo. On Hyperion homepage I can download a small PC program (hyperion servo commander) to adjust the Servos min and max angle . eg to at 90 degree range instead of the 180 default. However to use the PC program with the servo I need a "Hyperion" USB to servo serie interface .
I am curious , What is this for an interface? and any schematics out there ?
You need better google-fu. ;)
Looking up your device, I found the page for the servo at Hyperion:
I read thru the PDFs given - so they have a dongle adapter that connects to USB, and the servo. According to one of the PDFs (programming manual), the white wire on the servo is a TX/RX pin...
So, I went to see if I could find this adapter, via one of their distributors:
Apparently, this place in HK carries it for about $20.00 USD:
From there, I looked at the product description:
Down at the bottom, it is mentioned "The Hyperion PRGUSB Series adapters are based on a Silicon Labs CP210x Chipset." with a link to Silicon Labs page (which is broken) - but a bit of searching around on the site let me know that the CP210x is actually a USB to Serial UART bridge chip:
Likely, what it does is nearly the same as the USB interface on the Arduino - converts a USB port into a TTL serial port, that can them comm with the servo via the white pin. Likely there is some special initialization code/routine (ie - a series of PPM commands to the servo?) that tells the servo to go into "programming" mode...
Now - that still doesn't get you far; the issue is "what are the serial commands" being sent and data received. For that, you would have to talk to Hyperion (I doubt they would give it to you); if you really wanted to know (and someone else hasn't done it - I wasn't able to find much out there), you would set things up on a Windows box, with the software, the USB adapter/programmer, and a "bus pirate" in-between - and start reverse engineering. It won't be easy, but with enough time an tenacity, such an effort could be rewarding.