RPN Scientific Firmware for the Spikenzielabs Calculator Kit
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03-01-2016, 12:53 PM
Post: #10
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RE: RPN Scientific Firmware for the Spikenzielabs Calculator Kit
Hi Maximillian,
Sounds like an excellent project! Please keep us posted. Regarding the displays, those look like they would work just fine. I am using modules with the TM1638 driver (eg. ebay: 351374870047), because they have LED's and pushbuttons which I am utilizing for indicators and additional keys, however the module you chose also has Arduino drivers so it should be a great choice. Regarding the Atmel chip on the SpikenzieLabs calculator enclosure, there is zero room for a socket so the processor is soldered directly to the board (see picture attached). I guess I've been lucky and I haven't yet fried one of these chips, plus they are good for so many programming cycles that I didn't think about socketing it. Probably a good idea though! Regarding the programmer, I am using one based on the CP2102 USB chip with a 6-pin wire connector (see picture 2 attached). I don't remember where I bought mine, but I just searched ebay and there seem to be a large variety. The one pictured here works perfectly -- including resetting the processor when accessing the serial port, etc. Good luck with the project and have fun! Steve. |
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