Bluetooth Audio Receiver and Playback Module (Bluetooth 4.0) [Discontinued] _RPI_HAT_Inputs Also connect a ground pin

Also connect a ground pin together and power with an independent 5V supply to keep from loading the power supply too much

And it's still very small at just 284mm x 127mm x 21mm

GPS Receiver for Arduino is a unit embedding GPS module and antenna in a small foot-print enclosure

MCP3424 18-Bit ADC-4 Channel with Programmable Gain Amplifier x1

Bluetooth Audio Receiver and Playback Module (Bluetooth 4.0) [Discontinued] _RPI_HAT_Inputs Also connect a ground pinThis Bluetooth Audio receiver module includes a USB port and TF card slot. With a pre amp output, you can drive headphones or a 3W speaker directly. You can also add an active power amplifier and connect a loudspeaker. The module supports MP3, WMA, WAV and lossless FLAC audio formats. This module supports playback from TF or USB flash drive. All playback is controlled by buttons, and an sound equalizer has build in to meet different favor. With its