Tools, APP Software Used etc.

	KiCAD Kicad
	arduino IDE Arduino

Description

SI4732 Allwave DSP radio controlled by Pi Pico

Raspberry Pi pico can control SI4732 via I2C interface.

The Pi pico program that controls the SI4732 can be found on GiHub.

Additional functionalities are needed when using SI4732.

Audio power is insufficient and sound has distortion,

so it need to add amplifier with lowpass filter.

And high-frequency amplification is also required.

The circuit diagram shown here realizes them.

The Operational Amplifier NJM4580 is used for audio amplifier.

Transistor S9018 is used for high frequency amplification.

Buttons for operation are connected to pin headers installed on the board.

The display unit is connected to the I2C of Pi pico.

Code

Github:SI4732_allwave_radio_controlled_by_pi_pico

https://github.com/asmnoak/SI4732_allwave_radio_controlled_by_pi_pico

SI4732(SI4735) Library

https://github.com/pu2clr/SI4735

Schematic and Layout

Schematic

schematic2.pdf

Download Gerbers Download BOM(Bill of materials)

May 17,2024

1,161 views

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SI4732 Allwave DSP radio controlled by Pi Pico

SI4732 is well known Allwave DSP radio IC. Raspberry Pi pico can control SI4732 via I2C interface. PCB designed with SI4732 and Pi pico.

1161

Published: May 17,2024

Download Gerber file 8

BOM(Bill of materials)

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Topic

Raspberry Pi

Radio

KiCad Design Contest-Communication Theme

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