Does anyone know how to update the bootloader on these boards?

use the ATmega328p (old Bootloader) setting. works good for me

I am unable to upload a sketch to all 3 boards.. even when switching to old bootloader, are they bad boards?

I purchased 2 sets of 3ea LAFVIN boards assembled with headers and USB cables August 2020. Using Arduino IDE 1.8.5 could not upload sketch to Nano. Changed Tools->Board=Arduino/Genuino Uno and was able to upload sketch. The Nano thinks it is a Uno. I do not know if there are any other differences.

What voltage battery for these?

Variable. Can connect to USB via mini-USB connecor. Higher voltages up to 9V can connect to power pins

"irremote library by sherriff" compatibility.... having eliminated most other issues, i suspect incompatibility. any btdt or advice?

Sometimes these ship without bootloaders. You will have to flash it yourself if that’s the case. This can be done with a known good Arduino.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

LAFVIN Nano V3.0, ATmega328P 5V 16M Micro-Controller Board for Arduino (3 Pack With USB Cable)

LAFVIN Nano V3.0, ATmega328P 5V 16M Micro-Controller Board for Arduino (3 Pack With USB Cable)

Product ID: 214966687

Details

Brand
LAFVIN
Compatible Devices
Personal
Hardware Interface
USB
Item Weight
0.2 Ounces
Style
Classic

⚡16 MHz clock speed

🔌5V operating voltage

🔢14 digital I/O & 8 analog inputs

Description

🚀 Nano-sized tech, mega-sized possibilities!

COMPACT POWERHOUSE - ATmega328P microcontroller delivering reliable 16 MHz performance for seamless Arduino IDE integration.
VERSATILE I O ARSENAL - 14 digital pins (6 PWM) plus 8 analog inputs empower complex robotics, IoT, and automation projects.
FLEXIBLE POWER OPTIONS - Supports USB power or external 5V-12V supply, ensuring your projects stay energized anywhere.
PLUG PLAY SIMPLICITY - Includes USB cable for instant connection and programming—no extra accessories needed.
BREADBOARD FRIENDLY DESIGN - Compact form factor fits perfectly on breadboards, accelerating prototyping and innovation.

The LAFVIN Nano V3.0 is a compact, Arduino-compatible microcontroller board powered by the ATmega328P chip running at 16 MHz. Operating at 5V, it offers 14 digital I/O pins (including 6 PWM) and 8 analog inputs, making it ideal for diverse electronics projects from robotics to IoT. Included USB cable enables easy programming and power supply, while its breadboard-friendly size and flexible power options make it a versatile choice for both beginners and pros.

Specifications

ASIN	B07G99NNXL
Brand Name	LAFVIN
Compatible Devices	Personal Computer, Laptop, Printer, Router, Monitor, Smartphone, Tablet
Country of Origin	USA
Customer Reviews	4.5 4.5 out of 5 stars (2,123)
Hardware Interface	USB
Item Weight	0.2 Ounces
Manufacturer Part Number	LA-020
Model Number	8541582500
Number of Items	3
Number of Packs	3
Style Name	Classic
UPC	781520418697

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced from reputable international marketplaces in US, UK, and UAE. We have a robust verification process to ensure product authenticity, and each item is inspected at our warehouse before shipping to customers. Every product comes with applicable warranties and our standard return policy for your peace of mind.

How long does delivery take to India and is it reliable?+

We typically deliver within 4-9 business days to major Indian cities. Each order is trackable end-to-end through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

Why are prices different from Amazon prices?+

All products are sourced from US, UK, and UAE. Our prices include international shipping costs, customs duties, payment processing fees and logistics handling to ensure smooth delivery to India. We handle all customs clearance so you don't face any hidden charges later.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews