I am prototyping a Wi-Fi thermometer with an ESP8266 and an HT11, it works on the breadboard (!) and now I am designing a 3D printable cabinet. I would like the final thing to be completely dis-mountable, so I am avoiding soldering.
The ESP8266 and the HT11 come with pins that I need to connect. I can use female-female jumper wires, but the standard sizes (I see only 10 and 20 cm on sale) are too long for me.
Any suggestions on how to make a a short female-female jumper cable? I'd say I need a 2 or 3 cm long cable maximum.