Hardware Voyager Emulator

[agarza]

(08-21-2021 08:29 PM)rprosperi Wrote:  

(08-21-2021 07:57 PM)agarza Wrote:  [snip]
Right now I’m working on the keypad ‘decoder’ so that when you’re in programming mode you can see the key names along with the key coordinates.

If that, or other features, come along after one has purchased one of these, what is needed to updated the f/w to a newer version?

a. What h/w is needed? USB cable? Special cable? etc.

b. What special s/w is needed?

c. What skills are needed, or it is just downloading a new image file?

a) The board has a one row, 6 pin female header to program it. It is a SPI (Serial Peripheral Interface).

You can use basically any Arduino programer (I personally use the usbasp, it is really cheap, fast and readily available. Even Amazon has them.)

b) You need the avrdude software to load the firmware. It runs on Mac OS, Linux and Windows. It's the software Arduino uses to upload it's sketches (firmware).

c) It's not really difficult. The idea is to have fun assembling the calculator. But I have included an option on tindie to ship it assembled.