Can't get serial communication working on Atmega328 - Networking, Protocols, and Devices - Arduino Forum
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Standalone Arduino with ATMEGA328P / Serial working, but serial programming not (only once after buning bootloader) - Arduino Stack Exchange
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Ws16 Micro Usb Flip Mwc Serial Port Atmega328p Mpu6050 6 Axis Gyro Accelerometer Sensor Socket For Ftdi Lcd Oled Connector - Connectors - AliExpress
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