3pcs Mini Module ATmega328P CH340G Chip 5V 16MHz Developer Board for Arduino Nano with 3pcs USB Cable, Soldered

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Question:Why my Mac can not recognize the nano board? Answer:You simply need to install the CH340 driver, the driver link: https://sparks.gogo.co.nz/ch340.html If it still cannot be recognized by the computer, please install the driver according to this tutorial: https://www.arduino.cc/en/Guide/DriverInstallation Question:The driver has been installed successfully, but the upload still does not work, what should I do? Answer:Try setting "ATmega329P (Old Bootloader)" in the Arduino software. Tools->Processor->ATMega328P (Old Bootloader)."Just Choose IZOKEE: Your expert for Micro-Electronics! One-Stop-Shopping with Various Electronic Modules, Components and Tools! " The pin headers are already soldered to the board. Technical specifications Microcontroller: Atmel ATmega328 Operating voltage: 5V Input voltage: 7-9V Flash memory: 32 KB ATmega328 of the 2 KB can be used for the bootloader. SRAM: 2 KB Clock frequency: 16 MHz Analog I / O pins: 8 EEPROM: 1 KB ATmega328 DC current per I / O pins: 40 mA (I / O pins) Digital I / O pins: 22 PWM output: 6 Power consumption: 19 mA Dimensions: 0.70 "x 1.70" Delivery : 3 X Nano V3 board 3 x USB cable