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Instructions for use:
(Taking the access MCU as an example, how to connect each row of pins)
TTL (UART) side:
VCC: DC 3V-5.5V
GND: Connect to GND
TXD: Connect to MCU.RX (Signal Flow: MCU.RX ← SP3232 ← RS232.TX )
RXD: Connect to MCU.TX (Signal Flow: MCU.TX → SP3232 → RS232.RX)
CTS, RTS is not used by default.
RS232 side:
RXD: Connect RS232.TX (Signal Flow: RS232.TX →SP3232 → MCU.RX)
TXD: Connect to RS232.RX (Signal Flow: RS232.RX ←SP3232 ← MCU.TX)
GND: Connect to RS232.GND
CTS, RTS is not used by default.
Package Included:
3 pcs TTL to RS232 Module
Dok S
Reviewed in the United States on May 31, 2024
Just connect the wires and you're off and running
Mike
Reviewed in the United States on November 8, 2023
One worked out of the two. The other seemingly broke when being soldered for permanent install.
Reader6969
Reviewed in the United States on October 9, 2023
They work as expected. One broke after
Dave S.
Reviewed in the United States on April 12, 2023
Very well made, nice soldering, excellent silkscreen, and they work great.
Customer
Reviewed in the United States on September 6, 2022
2 not working all and 1 works but got extremly hot and burnt!
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