There really isn’t too much more to this build — mostly power, a needle cartridge, and a Bluetooth audio transmitter. There’s a TTP223 touch module on the lid that allows [JGJMatt] to turn ...

Long-range RC transmitter “I started using Bluetooth devices like the HC-05 modules, but I found that these sometimes randomly disconnected. Since then I’ve been using the NRF24L01 modules ...

The TC418 is a Bluetooth 4.2, dual-transmitter device featuring the low-latency version of Qualcomm’s aptX audio transmission codec. Regular aptX, FastStream, and SBC are also supported (aptX HD ...