Rs233 make TXD high just using other pins, I don't want to hook up any serial input
Posted: Sat Jun 10, 2023 3:48 am
I have just purchased this pair
https://www.aliexpress.com/item/1005003 ... 1802W6GwfD
At the LORA transmit end I will have an on/ off switch. Just need to make TXD high just using other pins, I dont want to hook up any serial input.
The send receive units are pre-set up and are handshaking every minute.
Any ideas
https://www.aliexpress.com/item/1005003 ... 1802W6GwfD
At the LORA transmit end I will have an on/ off switch. Just need to make TXD high just using other pins, I dont want to hook up any serial input.
The send receive units are pre-set up and are handshaking every minute.
Any ideas