Can this be used to update Ender 3 Pro firmware?

Yes, it can. Not all Ender 3 or Ender 3 Pro printers ship with a bootloader. You can use this to either burn a bootloader and then flash the firmware via USB, or you can use this to flash the firmware directly to the main board. I have used it to burn a bootloader onto a Creality 1.1.3 board, and then flashed the firmware from the source code Creality has available on their site.

I have an Ender 3 without a bootloader, will this work to flash Marlin firmware directly to the board without installing a bootloader?

Yes, as USBAsp I was able to load a bootloader on an Ender3 board.

Will this programmer work with win 7 and atmel studio 7? where is the operating instructions?

Here is document link, https://protostack.com.au/download/Users%20Guide%20(AC-PG-USBASP-UG-V2.0).pdf

On the instructions pdf, 4.2.3 procedure, step d, where do i find a bootloader binary file to go from this thing to the ender 3?

Believe I got the boot loader from YouTube video on how to. You should be able to get it from the creakily site also

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for ATMEL 51 AVR USB ISP ASP Microcontroller Programmer Downloader with Cable + 10Pin to 6Pin Adapter Board for Ender 3 or Ender 3 Pro

Product ID: 280750740

Details

Brand
Geekstory
Compatible devices
Personal
Hardware interface
USB
Item weight
0.3 Ounces
Style
Classic

⚡Supports 3.3V & 5V power supply

💻Windows-only USB interface

🔌6-pin & 10-pin adapter included

S/.124

Duties & taxes included

In stock

Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your microcontroller game — never miss a flash!

ONBOARD AT MEGA 8 CHIP - Reliable, built-in microcontroller chip ensures stable and efficient programming every time.
ENDER 3 PRO COMPATIBLE - Specifically designed to update and flash firmware on popular Ender 3 and Ender 3 Pro 3D printers.
FIRMWARE UPGRADE READY - Easily update your programmer’s firmware via the dedicated programming interface to stay ahead.
DUAL VOLTAGE POWER SUPPORT - Effortlessly programs microcontrollers with both 3.3V and 5V power options, maximizing compatibility.
PLUG PLAY USB CONVENIENCE - Seamlessly connects to your PC’s USB port for instant programming without bulky setups.

The ATMEL 51 AVR USB ISP ASP Microcontroller Programmer is a compact, Windows-compatible device featuring an onboard ATMega8 chip, dual voltage support (3.3V/5V), and a user-friendly 6-pin interface with a 10-pin to 6-pin adapter. Ideal for quick firmware updates on Ender 3 and Ender 3 Pro 3D printers, it offers reliable, upgradeable programming with power and status LEDs for real-time feedback.

Specifications

ASIN	B07NZ59VK2
Best Sellers Rank	#96,824 in Computers ( See Top 100 in Computers ) #1,477 in Single-Board Computers
Brand	Geekstory
Compatible Devices	Personal Computer
Compatible devices	Personal Computer
Customer Reviews	4.2 out of 5 stars 499 Reviews
Hardware Interface	USB
Hardware interface	USB
Item Weight	0.3 Ounces
Item weight	0.3 Ounces
Manufacturer	Geekstory
Mfr Part Number	GR0151+GR3382
Model Number	USBASP-GR0151+GR3382
Operating System	Windows
Style	Classic
Style Name	Classic
UPC	747356629607
Unit Count	1.0 Count

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