![UGEEK Original Design! Serial Port Expansion Board RS232 for Raspberry Pi 3 Model B, 3B+, 3A+ GPIO UART Shield | With IR receive|board design|board boardboard raspberry - AliExpress UGEEK Original Design! Serial Port Expansion Board RS232 for Raspberry Pi 3 Model B, 3B+, 3A+ GPIO UART Shield | With IR receive|board design|board boardboard raspberry - AliExpress](https://ae01.alicdn.com/kf/HTB1hQ2VLFXXXXaKXpXXq6xXFXXXt/UGEEK-Original-Design-Serial-Port-Expansion-Board-RS232-for-Raspberry-Pi-3-Model-B-3B-3A.jpg)
UGEEK Original Design! Serial Port Expansion Board RS232 for Raspberry Pi 3 Model B, 3B+, 3A+ GPIO UART Shield | With IR receive|board design|board boardboard raspberry - AliExpress
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Raspberry pi3: C++ serial communication not working properly (Raspberry pi was working!) - Stack Overflow
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Sunguru IT Channel 01: Raspberry Pi] 5. How do you make the serial console work on the Raspberry Pi 3 Model B+
![UGEEK Original Design! Serial Port Expansion Board RS232 for Raspberry Pi 3 Model B, 3B+, 3A+ GPIO UART Shield | With IR receive|board design|board boardboard raspberry - AliExpress UGEEK Original Design! Serial Port Expansion Board RS232 for Raspberry Pi 3 Model B, 3B+, 3A+ GPIO UART Shield | With IR receive|board design|board boardboard raspberry - AliExpress](https://ae01.alicdn.com/kf/HTB1rAH4LFXXXXcKXpXXq6xXFXXXx/UGEEK-Original-Design-Serial-Port-Expansion-Board-RS232-for-Raspberry-Pi-3-Model-B-3B-3A.jpg)
UGEEK Original Design! Serial Port Expansion Board RS232 for Raspberry Pi 3 Model B, 3B+, 3A+ GPIO UART Shield | With IR receive|board design|board boardboard raspberry - AliExpress
![Unable to read the RS232 attached GPIO pins the same way as USB serial port on Pi3 - Raspberry Pi Stack Exchange Unable to read the RS232 attached GPIO pins the same way as USB serial port on Pi3 - Raspberry Pi Stack Exchange](https://i.stack.imgur.com/JqPA6.jpg)