3 ms·
Pretty confident, if the recieving machine is compromised, it is only connected to the opto coupler, that ensures only one way traffic, on one pin. Somehow you
by nelop 9mo ago
Pretty confident, if the recieving machine is compromised, it is only connected to the opto coupler, that ensures only one way traffic, on one pin.
Somehow you would have to get a receive pin to transmit, and then get through the opto coupler and then it just hits a pin that's designed to only send data.
- IncreasePosts 9mo agoSorry, I didn't mean for your project, but for using a RS232 null modem like OP suggested
- justincormack 9mo agoPins on modern hardware like that are all bidirectional you set the direction in software normally.
- nelop 9mo agoOhhh that's a good point, you can set the Rx pin to Tx, then it still has to get through the opto isolator, and then it's talking to a port that's set to Tx.