When you go to elegoo.com and download the .zip for their nano with the ch340, there are a bunch of ch340 drivers. what are these for?

They are for different operating system, say win10 or Mac. Pls. download ans install the driver according to your system.

Does this have bootloader installed ?

I'm surprised by the previous answers - the instructions plainly tell you to install a bootloader. Without the bootloader it may sort of work, but I found that even a simple program would not run properly. So, I recommend resetting, loading the bootloader and then loading your program.

What is the max voltage to power it through vin pin? have used 12v no problem. want to try 16v. description at top says 6-20v, but later says 7-12v.

I have used 16v no problem but 12v is best. Have not used 16v for long duration however. Try it. If damaged it is only $4 lost

Can it be programmed thru the micro-USB port or do you need a special cable connected thru the 6-pin (2x3) header?

They can indeed be programmed through the USB. I haven't even soldered the six pin header on yet. (This package contains 3, and none of the pins are soldered on.) You do need a driver for the USB chipset, but it's easily found on Elegoo's website, and works just great. I really like mine.

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ELEGOO Nano Boards V3.0, ATmega328P CH340, 3-Pack, Compatible with Arduino

Product ID: 42284009

Details

Brand
ELEGOO
Connectivity Technology
USB
Memory Storage Capacity
512 KB
Model Name
Nano
Ram Memory Installed Size
32 MB

⚡16 MHz high-speed CPU

📏Compact breadboard-friendly size

🔌Multiple power input options

13599 Ft

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Description

🚀 Elevate your maker game with ELEGOO Nano – small board, big possibilities!

TRIPLE PACK VALUE - Get 3 boards at once—perfect for prototyping, team projects, or sharing the innovation
VERSATILE POWER INPUTS - Auto-switching between USB, 7-12V unregulated, or 5V regulated power sources
CH 340 USB TO SERIAL DRIVER - Seamless connectivity with easy driver installation for hassle-free coding
POWERFUL 16 M HZ A TMEGA 328 P CHIP - Smooth, reliable processing for all your DIY projects
ULTRA COMPACT BREADBOARD FRIENDLY - Maximize your workspace with a sleek 1.9" x 0.4" footprint

The ELEGOO Nano Board CH340/ATmega+328P is a compact, breadboard-friendly microcontroller compatible with Arduino Nano V3.0. Powered by a 16 MHz ATmega328P CPU and CH340 USB-to-serial chip, it supports multiple power inputs with automatic source selection. This triple pack offers a cost-effective solution for both beginners and pros, featuring a pin layout optimized for versatile prototyping and easy driver setup.

Specifications

ASIN	B0713XK923
Best Sellers Rank	#203 in Single Board Computers (Computers & Accessories)
Brand	ELEGOO
Built-In Media	[Mini-B USB cable]
CPU Speed	16 MHz
Compatible Devices	Arduino Nano V3.0, various devices with Mini-B USB, and devices compatible with the Mini or Basic Stamp pin layouts (such as certain boards from Arduino, Adafruit, or SparkFun)
Connectivity Technology	USB
Customer Reviews	4.6 out of 5 stars 1,854 Reviews
Item Dimensions L x W x H	1.9"L x 0.4"W x 0.7"H
Item Weight	0.1 Ounces
Manufacturer	ELEGOO
Memory Storage Capacity	512 KB
Mfr Part Number	EL-CB-005
Model Name	Nano
Model Number	CA-EL-CB-005
Operating System	FreeRTOS
Processor Brand	Atmel
Processor Count	1
Processor Speed	16 MHz
RAM Memory Installed	2 KB
RAM Memory Technology	SRAM
Ram Memory Installed Size	2 KB
Smart Home Compatibility	Not Smart Home Compatible
Total Usb Ports	1
Unit Count	3.0 Count
Wireless Compability	802.11b

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13599 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

1 month ago

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