How do you shorten the wires but keep the end pins attached?

What I usually do is just fold the wire, but if you really wanna shorten them heat the part of the wire that you wanna get rid of the rubber part, cut the excess amount of wire and solder the both ends together. Put some rubber or tape on the naked part of wire as well.

I need a 30 pin male to female extention for my LCD controller board but it needs to be 1mm pitch, will these do? or are they to bigger pitch?

Hello LynnThank you for your interest in Elegoo Dupont wires.If you mean the diameter of the pins then it is 1mm and wil fit in your LCD controller board.Should you have additional questions please feel free to let me know.Best regardsElegoo Support Team

I have bare wires from various hardware , how do I make the connection to these wires in order to put the male pins into the Arduino?

You could use a breadboard or for a more permanent solution, cut the wires and solder them to the bare wires (or twist them together) and wrap with tape (preferably electrical tape).

Is the inside cable twisted or is it a single cable?

It is braided cable in my ones, others i have seen are single strand - Don't buy the even cheeper ones!

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ELEGOO Multicolored Dupont Wire

Product ID: 47870395

Details

Brand
ELEGOO
Colour
Dupont Wire to
Material
copper-clad
Number of cable strands
12 UK
Voltage
5 Volts

🌈Multicolored for easy organization

📏20cm length, perfect for breadboards

🔌120 versatile jumper wires

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Rp426496

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Description

⚡ Wire up your genius — never run out of connections again!

FLEXIBLE DURABLE - Premium copper-clad aluminum with PVC insulation ensures reliable, long-lasting connections.
COLOR CODED CLARITY - Vibrant multicolor wires eliminate guesswork and streamline complex projects.
CUSTOMIZABLE LENGTHS - Each 20cm wire can be separated to fit odd-spaced headers and unique setups effortlessly.
COMPLETE CONNECTIVITY KIT - Includes 40-pin male-female, male-male, and female-female cables for every Arduino need.
BEGINNER APPROVED PRO TRUSTED - Ideal for hobbyists and pros alike, making prototyping faster and less stressful.

ELEGOO’s 120-piece jumper wire kit offers a versatile, color-coded solution with male-to-male, male-to-female, and female-to-female 20cm cables. Crafted from durable copper-clad aluminum and PVC, these wires ensure secure, flexible connections for Arduino and breadboard projects. Perfect for beginners and pros, this kit simplifies prototyping with organized, customizable wiring options.

Specifications

ASIN	B01EV70C78
Best Sellers Rank	355 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Jumper Wires
Brand	ELEGOO
Colour	Dupont Wire 120pcs(male to female,male to male, female to female)
Country Of Origin	China
Customer Reviews	4.7 4.7 out of 5 stars (14,582)
Global Trade Identification Number	00746591610906
Included Components	jumper wire
Item Weight	0.06 Pounds
Manufacturer	ELEGOO
Manufacturer Part Number	EL-CP-004
Material	copper-clad aluminum, PVC
Model Number	EL-CP-004
Number Of Wires	3
Product Warranty	6 months
Strands	12 UK
UPC	719377200424 746591610906
Unit Count	1.0 count
Voltage	5 Volts

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