DSP6951

Arduino Library for DSP6951 DSP Radio IC.

Supported devices

• DSP6951
• M6951 module

Known issue

• Tuning to AM doesn't work.

Getting started

Circuit

(resistor is all 10k)

According to datasheet, the rated voltage is 3.3v.

However in my environment, it didn't work with 3.3v.

So I powers it with 5v and it worked successfully. (Also maximun voltage is 5.8v, so it is OK for the moment)

Sketch

#include <DSP6951.h>

DSP6951 radio;

void setup() {
  Serial.begin(9600);
  radio.begin();
  radio.setVolume(50);
  radio.setMode(DSP6951::FM);
  radio.setChannel(81.3);
}

void loop() {
  Serial.println(radio.getCNR()); //get "Carrier to noise ratio" and print it
  delay(300);
}

API Reference

• void begin(void);

Initialize IC and prepare to work.

• void setVolume(uint8_t volume);

Set output volume to the specified value(0-100).

• void setChannel(float freq);

Set channel to the specified frequency.

• void setMode(bool mode);

Set working mode (DSP6951::AM or DSP6951::FM)

Currently only FM is supported. AM support will be added soon.

• void setMute(bool mute);

Set mute or not. Set true to mute, false to unmute.

• uint8_t getCNR();

Get CNR(Carrier to noise ratio).

• uint8_t getRSSI();

Get RSSI(Received Signal Strength Indication).

• bool isTuned();

Get whether it is successfully tuned to the channel or not.

• uint8_t getVolume();

Get current volume value. (0-100)

• float getChannel();

Get current frequency.

• bool getMode();

Get current working mode. (DSP6951::AM or DSP6951::FM)

• bool getMute();

Get current mute state.

• void tune();

Tune to current frequency expressly.

It doesn't needed in usual.

LICENSE

This library is published under MIT LICENSE.

See LICENSE.