# 8-bit audio recorder ## Description An 8-bit audio recorder for use with a Raspberry Pi. The point of this circuit is to learn how to use an ADC, which is why it connects to the GPIO. ## Project Details - **Owner:** tcarswell - **Created:** 8/9/2022 - **Last Updated:** 9/26/2022 - **Visibility:** Public ## Key Components ### ? — [+3V3 Power/Voltage](https://www.flux.ai/adrian95/plus3v3-powervoltage.md) **Pins:** - +3V3 ### ? — [+3V3 Power/Voltage](https://www.flux.ai/adrian95/plus3v3-powervoltage.md) **Pins:** - +3V3 ### ? — [Raspberry Pi 4B](https://www.flux.ai/lwcassid/null.md) **Pins:** - 10/100 LAN Port - 3V3 - 3V3 - 5V - 5V - 5V - 5V - 5V IN - DATA - - DATA - - DATA + - DATA + - DSI Display Port - GND - GND - GND - GND - GND - GND - GND - GND - GND - GND - GND - GPIO 0 (ID_SD) - GPIO 1 (ID_SC) - GPIO 10 (MOSI) - GPIO 12 (PWM0) - GPIO 13 (PWM1) - GPIO 14 (TXD) - GPIO 15 (RXD) - GPIO 16 - GPIO 17 - GPIO 18 (PCM_CLK) - GPIO 19 (PCM_FS) - GPIO 2 (SDA) - GPIO 20 (PCM_DIN) - GPIO 21 (PCM_DOUT) - GPIO 22 - GPIO 23 - GPIO 24 - GPIO 25 - GPIO 26 - GPIO 27 - GPIO 3 (SCL) - GPIO 4 (GPCLK0) - GPIO 5 - GPIO 6 - GPIO 7 (CE1) - GPIO 8 (CE0) - GPIO 9 (MISO) - GPIO11 (SCLK) - HDMI - Micro USB ### J1 — [Microphone](https://www.flux.ai/vasyl/microphone.md) - Manufacturer Part Number: Microphone - Part Type: Microphone **Pins:** - GND - OUT ### U1 — [AD7819YNZ](https://www.flux.ai/vasy_skral/ad7819ynz.md) - Manufacturer Name: Analog Devices - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/AD7819.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: AD7819YNZ **Pins:** - CS - DB0 - DB1 - DB2 - DB3 - DB4 - DB5 - DB6 - DB7 - EOC - GND - OE - START - VCC - Vin - VREF ### U2 — [OPA2376AIYZDR](https://www.flux.ai/jecstronic/opa2376aiyzdr.md) - Manufacturer Name: Texas Instruments - Part Type: Operational Amplifier (OP-AMP) - Datasheet URL: https://rocelec.widen.net/view/pdf/kfueswpfmk/sbos406g.pdf?t.download=true&u=5oefqw - Manufacturer Part Number: OPA2376AIYZDR **Pins:** - - - - - + - + - ~ - OUTPUT - V- - V+ *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/tcarswell/8-bit-audio-recorder](https://www.flux.ai/tcarswell/8-bit-audio-recorder).* --- *Generated from [https://www.flux.ai/tcarswell/8-bit-audio-recorder](https://www.flux.ai/tcarswell/8-bit-audio-recorder)*