Your cart is empty.
Your cart is empty. Parameter:
RS232 communication chip: SP3232.
DB9 Interface Type: Female.
Operating voltage: 3V-5V;
Overvoltage protection: YES (with four bidirectional transient suppression diode signal voltage protection.)
Hardware flow control: YES.
RS232 signal outside lead: YES (reserved RS232 signal pin hole);
DuPont Line: YES (Package includes four 20cm high quality DuPont wires);
Interface:
TXD RXD VCC GND RTS CTS (TTL);
TXD RXD GND RTS CTS (RS232);
The back of the module with a connection diagram;
Module instructions
1, one end connected to the MCU, the other end connected to a PC serial port or other DB9 plug case
VCC: 3V-5V
GND: Connect to GND
TTL signal terminal
TXD: Connect to MCU.RXD (Signal Flow: MCU.RXD ←SP3232 ← PC.TXD)
RXD: Connect MCU.TXD (Signal Flow: MCU.TXD → SP3232 → PC.RXD)
CTS: Connected MCU.CTS (Signal flow: MCU.CTS ← SP3232 ←PC.RTS)
RTS: Connect MCU.RTS (Signal Flow: MCU.RTS → SP3232 → PC.CTS)
2, one end connected to the MCU, the other end through the pin hole to connect the RS232 signal (default is not soldered RS232 pin)
VCC: 3V-5V
GND: Connect to GND
TTL signal terminal
TXD: Connect to MCU.RXD (Signal Flow: MCU.RXD ← SP3232)
RXD: Connect MCU.TXD (Signal Flow: MCU.TXD → SP3232)
CTS: Connected MCU.CTS (Signal flow: MCU.CTS ← SP3232)
RTS: Connect MCU.RTS (Signal Flow: MCU.RTS → SP3232)
RS232 signal terminal
TXD: Connect RS232.RXD (Signal flow direction: SP3232 → RS232.RXD)
RXD: Connect to RS232.TXD (Signal flow direction: SP3232 ← RS232.TXD)
RTS: Connect to RS232.RTS (Signal Flow: SP3232 ← RS232.RTS)
CTS: Connect to RS232.CTS (Signal Flow: SP3232 → RS232.CTS)
Package Included:
1xRS232 to TTL Serial Port Module
4x20cm DuPont wires
Tony G.
2025-08-08 16:08:10
Used on some S-100 computer boards. Works well.
Mark
2025-04-13 13:43:52
Likes: Quality and performance.Dislikes: none
Brian J
2025-02-14 09:53:37
I used this in an ESP 8266 project and it works perfectly!
Recommended Products
