Amazon.com: ELEGOO Nano Board CH 340/ATmega+328P Without USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 Without Cable) : Electronics
Amazon.com: SunFounder IIC I2C TWI Serial 2004 20x4 LCD Module Shield Compatible with Arduino R3 Mega2560 : Electronics
Arduino Nano 33 IoT — Arduino Online Shop
Diymore 3.3v Expansion Prototype Shield I/o Io Module For Arduino Nano V3.0 3.0 Io Iic I2c Interface Dc Power Supply Pwm - Integrated Circuits - AliExpress
Amazon.com: SparkFun Qwiic Shield Compatible with Arduino Nano-connect the I2C bus (GND, 3.3V, SDA and SCL) to four Qwiic connectors (two horizontally and two vertically mounted)-daisy chaining-Soldering Required : Electronics
Amazon.com: Mini Nano V3.0 ATmega328P Microcontroller Board w/USB Cable for Arduino : Electronics
Amazon.com: HiLetgo 3pcs Nano V3.0 ATmega328P CH340G 5V 16M Mini USB Micro Controller Board Development Board with PIN Headers Pin Unsoldered : Electronics
Amazon.com: Wishiot DS3231 Real Time Clock Module High Precision AT24C32 IIC RTC Sensor Without Batteries for Arduino Nano Mega2560 Leonardo Raspberry Pi (Pack of 5) : Electronics