Espruino 1.4 Open Source JavaScript Microcontroller

Espruino 1.4 Open Source JavaScript Microcontroller

Marsoni

M251S

$66.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Espruino 1.4 Open Source JavaScript MicrocontrollerTry the JavaScript of things with the Espruino 1. 4 the world's first open source JavaScript microcontroller! This tiny board features an STM32 microcontroller pre programmed with Espruino, allowing you to start coding in JavaScript immediately. The Espruino offers instant code execution which provides quick and easy debugging and allows projects to be tested live instead of waiting for flashing. It works with Windows, Mac OS, Linux, Raspberry Pi,

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We offer a 30-day return/exchange service after receiving.
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With no other reviews I was a bit hesitant to buy this cable at first. I've seen so many other brands and sellers that sell cable that is half the gauge they claim. Or cable that is not totally copper and has tin or other poor metals in it. Especially at this low price I worried. I went ahead and bought some anyway though and figured I would chance it. For the amount of money I'd be saving it was worth it. If it wasn't as advertised I could just return it anyway. It arrived in a couple days. It is truly 1/0 AWG, and it is 100% copper. Strands packed dense but still flexible. Comes in a nice carry case. I crimped and soldered on some ends. Everything looks great and is working great. Would definitely recommend and would buy again.

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Reviewed in the United States on January 3, 2016

Verified Purchase

Austin Grimes

Chelsea, US

★★★★★ 5

Good wire

Color: Black, Size: 15 feet

Great wiring

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Reviewed in the United States on October 20, 2025

Verified Purchase

626

New York, US

★★★★★ 5

Great wire.

Color: Black, Size: 15 feet

The flexibility is wonderful to work with. I used the red and black for a car audio application and it was a perfect choice for bending and snaking through the engine compartment and interior of the car. I have some just sitting on a bench and it still hasn't corroded and it's at least 3 years old. The insulation is very supple and has a nice feel to it and it carried current no problem of course.

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Reviewed in the United States on July 4, 2023

Verified Purchase

David w

Grantham, US

★★★★★ 5

Size

Color: Black, Size: 20 Feet

Perfect fit

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Reviewed in the United States on December 14, 2025