IOT Product Diagrams and Specifications

Bluetooth Module (with antenna) Specifications SHINE MP3 library Bare Metal USB Power Input A2DP input signal Port for UART Debugging Circuit “Bookshelf Quality” $150 MSRP -> $30 for parts or less Design Questions How many bits of audio do you need? What’s the maximum number of bits that would be reasonable? What’s the bit rate/throughput? What’s the noise floor Do you have to use a DAC? Bluetooth Speaker Adapter Circuit USB Power Power Supply Bluetooth Audio Signal Bluetooth Module (with antenna) M0 Class D Amp Line Out A2DP I2S/SPI DAC UART Debugging Circuit

Bluetooth Module (with antenna) Bluetooth Speaker Hub Circuit Specifications SHINE MP3 library Linux USB Power Input A2DP input signal Design Questions How many bits of audio do you need? What’s the maximum number of bits that would be reasonable? What’s the bit rate/throughput? What’s the noise floor Do you have to use a DAC? USB Power Power Supply Bluetooth Audio Signal Bluetooth Module (with antenna) Linux SOC Class D Amp Line Out I2S/SPI DAC A2DP ADC GPIO Control Buttons SPI SPI Line In SoundCloud API Ethernet MAC LCD Display