Adafruit PCM5100 I2S DAC with Line Level Output - 100dB SNR e-Paper Charge Time: About 1 hour

Charge Time: About 1 hour depending on battery status

1 x BBC Micro:bit

such as an Arduino or AVR

A bit of soldering is required to attach the two matrices onto the FeatherWing but it's very easy to do and only takes about 15 minutes

Adafruit PCM5100 I2S DAC with Line Level Output - 100dB SNR e-Paper Charge Time: About 1 hourThe Adafruit PCM5100 I2S DAC breakout board offers high quality stereo audio output with a signal to noise ratio of 100dB. It requires no MCLK or I2C configuration simply provide I2S audio input and the chip will output clean line level audio with ease. This breakout board supports 16, 24, or 32 bit audio data and automatically detects the correct format. The PCM5100 chip integrates power on reset, power saving mode, and a charge pump for excellent