JamHamster has created a self-contained, Arduino-powered cassette tape to easily load ZX Spectrum software downloaded from the Internet. There are ways to load downloaded cassette tape audio files without a device like this. If you have a ZX Spectrum, you can plug your smartphone into the cassette tape port and play audio files from that. If, like JamHamster, you have a ZX Spectrum +2 with a built-in tape deck, you can do the same thing using an auxiliary cable to cassette adapter. This project is just a tidier and more convenient way to achieve the same results. JamHamster’s unit is a specialized version of a TZXDuino, which is an open source Arduino device designed for storing and playing ZX Spectrum tape files. The typical TZXDuino is a bit bulky, but JamHamster’s version fits entirely inside of a cassette tape’s plastic shell. That includes the tape heads, so this can be inserted into a tape deck and used like a normal cassette. Inside of the enclosure are an @arduino.cc Nano board, a 0.96” I2C OLED screen…