sidtupper
New Member
- Joined
- May 18, 2021
- Messages
- 10
I'm making a MPPT solar pump controller using a Drok buck PSU (200310) controlled with an arduino UNO R3, as shown in this drawing, using the library and example at https://github.com/bengineer19/BuckPSU. I'm stalled at not being able to communicate with the Drok. On a logic analyzer I can see that commands are getting to the Drok Rx pin but nothing is coming back on the Tx pin. I've tried obvious stuff like swapping Tx / Rx and various baud rates (9600 vs 4800) without success. I'd really appreciate hints on how to get past this.
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