8/12/2023 0 Comments Dual headphone jackHere is my solution, first you need to open the “control” plastic (the dial-up button,etc). But, when plug it all the way in, you can’t get the mic works, and the sound is horrible. Okay, so when I plug the headphone half-way on my laptop, i can hear the normal sounds, and the mic is work as well. To make sure that you have Nokia headphone, just plug your headphone to an android device or Nokia device and make sure its work. This method is only tested on (let say) Nokia headphone. First i want to say that TRRS pins are not always the same, i mean, the pins you mentioned above is an iPhone pins (Left, Right, Ground, Mic), and Nokia (and most headphone out there) pins are Left, Right, Mic, Ground. Here is how to convert TRRS to TRS without anything. Once you’ve done that, the wires can be soldered directly to the inputs on your PCB, or connected to jumper wire pins so they can be inserted into a breadboard. Before soldering or connecting them to anything conductive, run a flame over the wires quickly to burn off the insulation, then wipe clean. There’s a very thin coating of insulating material on each wire, which is how they can be bundled together without any plastic insulation. If you only need a mono audio input with the TRRS connector, you can combine the combine the red and green wires to make a single mono audio wire, then combine the ground wires to make a single ground wire. If you can get to the pins inside the plug’s housing, the pins of the TRRS plug connect like this: The TRRS plug connects to the wires like this: You’ll also find a plastic cord that’s used to strengthen the headphone cable:
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