Yukiko Posted April 26, 2023 Report Share Posted April 26, 2023 It is possible to communicate with another microcontroller (like Arduino) using the USB port (micro B ) directly connected to a port Mini usb controller ??? Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted April 26, 2023 MVP 2023 Report Share Posted April 26, 2023 Not really. You need a driver on the PC to communicate with the USB port on the Samba. Typically you use the RS232 (RJ12) port on the PLC. Joe T. Quote Link to comment Share on other sites More sharing options...
Fernando Castro Posted April 27, 2023 Report Share Posted April 27, 2023 17 hours ago, Joe Tauser said: Not really. You need a driver on the PC to communicate with the USB port on the Samba. Typically you use the RS232 (RJ12) port on the PLC. Joe T. complementing Joe's answer that USB port is actually an USB to RS232 converter embedded in the PLC. In any case, it is easier to use directly the serial port into the PLC the RJ12 (both are physically the same com). Quote Link to comment Share on other sites More sharing options...
Pavel_setnicar Posted April 27, 2023 Report Share Posted April 27, 2023 And arduino as I know operate on TTL signals logica l"1" is +5 0r 3V, logical"0"is 0V. Serial ports on samba are real RS232 signals (+-10V) where logical "1" is -10V and logical "0" is +10V. Quote Link to comment Share on other sites More sharing options...
redhunter Posted January 10 Report Share Posted January 10 On 4/28/2023 at 7:43 AM, Pavel_setnicar said: And arduino as I know operate on TTL signals logica l"1" is +5 0r 3V, logical"0"is 0V. Serial ports on samba are real RS232 signals (+-10V) where logical "1" is -10V and logical "0" is +10V. So is there a way to get around this? Serial adapter on the arduino? Quote Link to comment Share on other sites More sharing options...
MVP 2023 Ausman Posted January 10 MVP 2023 Report Share Posted January 10 You need to goggles "convert 232 to TTL" and vice versa to find a whole host of adapters that might work. Quote Link to comment Share on other sites More sharing options...
Pavel_setnicar Posted January 10 Report Share Posted January 10 Using this https://vi.aliexpress.com/item/1005003091082827.html?spm=a2g0o.productlist.main.7.12f6nnNTnnNTgu&algo_pvid=6ea240c0-c56c-4f95-88b1-37e5953486df&aem_p4p_detail=202401100407583607811113199410007751814&algo_exp_id=6ea240c0-c56c-4f95-88b1-37e5953486df-3&pdp_npi=4%40dis!EUR!0.49!0.42!!!0.52!!%402101fb1a17048884783171605ee0d9!12000024024728654!sea!SI!111006486!&curPageLogUid=jQJKfO8xxbPs&utparam-url=scene%3Asearch|query_from%3A&search_p4p_id=202401100407583607811113199410007751814_4 but than you need to make this http://pencho.my.contact.bg/start/comp/rs232/unitronics-rj11.htm You can also buy it from Unitronics. Quote Link to comment Share on other sites More sharing options...
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