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Mar 13, 2017 at 22:59 comment added Michel Keijzers Yes I will go for the software solution first, probably for debugging, timing is not so much a problem.
Mar 13, 2017 at 22:14 comment added James Waldby - jwpat7 All of the approaches are easy to try – if you have time to experiment and if you have a serial port on your host computer – and you can take debugging out after using it. Anyway, if you have a serial port or a USB-serial device, it's probably worth trying out software serial, since the extra bit of CPU usage for debugging might be not a problem.
Mar 13, 2017 at 22:02 comment added Michel Keijzers Thank you (again ) for the extra explanation ... it seems the CPU might be a problem if I would go debugging by approach 3. Maybe an extra Arduino is not so bad idea after all. At least it will give many more things to try (still in 'learning' mode).
Mar 13, 2017 at 18:14 history edited James Waldby - jwpat7 CC BY-SA 3.0
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Mar 13, 2017 at 18:08 comment added James Waldby - jwpat7 @MichelKeijzers, see edit 1
Mar 13, 2017 at 18:08 history edited James Waldby - jwpat7 CC BY-SA 3.0
edit 1
Mar 13, 2017 at 11:27 comment added Michel Keijzers Thanks for all the possibilities ... A second Arduino seems a bit like overkill (but if it works, it works, just have one so far, I'm a beginner). The second sounds a bit troublesome, since my program might be rather complicated in time. However, the third seems very good and exactly what I need. Can I also ask one additional question? I'm intending in time maybe also to use SRAM, SD and/or an extra EEPROM ... will I get similar problems again (that the SD /SRAM/EEPROM (SPI) also uses hardware RX/TX ?)
Mar 13, 2017 at 11:25 vote accept Michel Keijzers
Mar 13, 2017 at 4:13 history answered James Waldby - jwpat7 CC BY-SA 3.0