Timeline for Can RX pin(s) be used as TX instead?
Current License: CC BY-SA 4.0
12 events
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| Feb 4, 2021 at 19:07 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 5, 2021 at 18:40 | answer | added | Adamelli | timeline score: 1 | |
| Dec 28, 2020 at 18:40 | comment | added | chrisl | You might wanna google for a transmit-only software serial library. That will also make the code smaller, as no receive code is included. | |
| Dec 28, 2020 at 17:05 | comment | added | Adamelli | Ah, yes, thanks Gerben. (The ID approach is what I meant by the One-Wire analogy.) | |
| Dec 28, 2020 at 16:56 | answer | added | Majenko | timeline score: 0 | |
| Dec 28, 2020 at 16:55 | comment | added | Gerben | You could also have single serial connecting that's shared with all the Nanos, and add an id to each message. For example, "turn motor 3 on", where only the third Nano would take action on that message. | |
| Dec 28, 2020 at 16:55 | comment | added | Gerben | As far as I can see, you can use the same RX pin on all your SoftwareSerial instances. You'd only have to "sacrifice" one pin. | |
| Dec 28, 2020 at 16:48 | comment | added | Gerben |
Are you aware that the Arduino (Uno, Mega2560) do not allow more than one instance of SoftwareSerial? are you sure, because one of the two example sketches uses two SoftwareSerial instances. Only one instance can receive at a time. Maybe that's what you were referring to, but OP only needs TX.
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| Dec 28, 2020 at 16:48 | comment | added | Adamelli | @jsotola Two to 20 motor modules controlled by Arduino slave devices (such as Nanos) running simple equations are sent variables from a master device (such as an ESP32). | |
| Dec 28, 2020 at 16:44 | comment | added | jsotola | what are you trying to build? | |
| Dec 28, 2020 at 16:44 | history | edited | Adamelli | CC BY-SA 4.0 |
added 39 characters in body
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| Dec 28, 2020 at 16:37 | history | asked | Adamelli | CC BY-SA 4.0 |