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| /* | ||
| * | ||
| * SI4844 and STM32F1 connections | ||
| * | ||
| * | SI4844 pin | STM32F1 pin | Description | | ||
| * | --------- | ------------ | ------------------------------------------------- | | ||
| * | 2 | PA11 | Interrupt pin | | ||
| * | 15 | PA12 | Regurlar digital pin used to RESET control | | ||
| * | 16 | PB7 (SDA) | I2C bus (Data) | | ||
| * | 17 | PB6 (SCL) | I2C bus (Clocl) | | ||
| * | ||
| * | ||
| * By Ricardo Lima Caratti, 2024. | ||
| */ | ||
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| #include <SI4844.h> | ||
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| #define RESET_PIN PA12 | ||
| #define INTERRUPT_PIN PA11 | ||
| #define DEFAULT_BAND 1 | ||
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| SI4844 rx; | ||
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| void setup() { | ||
| Serial.begin(9600); | ||
| delay(1000); | ||
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| Serial.print(F("\nESP32C3 - Begin...\n")); | ||
| Serial.flush(); | ||
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| instructions(); | ||
| // Some crystal oscillators may need more time to stabilize. Uncomment the following line if you are experiencing issues starting the receiver. | ||
| // rx.setCrystalOscillatorStabilizationWaitTime(1); | ||
| rx.setup(RESET_PIN, INTERRUPT_PIN, DEFAULT_BAND); | ||
| showStatus(); | ||
| delay(200); | ||
| rx.setVolume(48); | ||
| showStatus(); | ||
| } | ||
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| // Shows instruções | ||
| void instructions() { | ||
| Serial.println(F("-------------------ESP32C3---CONTROLLER------------------")); | ||
| Serial.println(F("Type F - FM; A - AM; 1 to 7 - SW1 to SW7")); | ||
| Serial.println(F("Type f - Custom FM - from 77 to 109 MHz - Step 200kHz")); | ||
| Serial.println(F("Type h - Custom FM - from 101 to 104 MHz - Step 200kHz")); | ||
| Serial.println(F("Type + or - to sound volume")); | ||
| Serial.println(F("Type B to Bass; T to Treeble and N to Normal")); | ||
| Serial.println(F("Type c - custom band 5.7 to 6.2 MHz")); | ||
| Serial.println(F("Type C - CB (custom Band 27.0 to 27.5 MHz")); | ||
| Serial.println(F("Type o to Power Down")); | ||
| Serial.println(F("Type I to Firmware Information")); | ||
| Serial.println(F("---------------------------------------------------")); | ||
| delay(500); | ||
| } | ||
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| // Shows firmware information | ||
| void show_firmware_information() { | ||
| Serial.println(F("\nSI4844 - Firmware information\n")); | ||
| rx.getFirmware(); | ||
| Serial.print(F("Final 2 digits of Part Number..: ")); | ||
| Serial.println(rx.getFirmwarePartNumber(), HEX); | ||
| Serial.print(F("Firmware Major Revision........: ")); | ||
| Serial.println(rx.getFirmwareMajorRevision()); | ||
| Serial.print(F("Firmware Minor Revision........: ")); | ||
| Serial.println(rx.getFirmwareMinorRevision()); | ||
| Serial.print(F("Component Major Revision.......: ")); | ||
| Serial.println(rx.getFirmwareComponentMajorRevision()); | ||
| Serial.print(F("Component Minor Revision.......: ")); | ||
| Serial.println(rx.getFirmwareComponentMinorRevision()); | ||
| Serial.print(F("Chip Revision..................: ")); | ||
| Serial.println(rx.getFirmwareChipRevision()); | ||
| Serial.println(F("*****************************")); | ||
| } | ||
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| void showStatus() { | ||
| Serial.print(F("Band Index: ")); | ||
| Serial.print(rx.getStatusBandIndex()); | ||
| Serial.print(F(" - ")); | ||
| Serial.print(rx.getBandMode()); | ||
| Serial.print(F(" - Frequency: ")); | ||
| Serial.print(rx.getFrequency(),0); | ||
| Serial.print(F(" KHz")); | ||
| if (rx.getStatusBandMode() == 0) { | ||
| Serial.print(F(" - Stereo ")); | ||
| Serial.print(rx.getStereoIndicator()); | ||
| } | ||
| Serial.print(F(" - Volume: ")); | ||
| Serial.print(rx.getVolume()); | ||
| Serial.println(""); | ||
| } | ||
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| // Control | ||
| void loop() { | ||
| // Read from keyboar (Arduino Serial Monitor) | ||
| // Band switch and sound volume control | ||
| // It can be replaced by your keyboar, encoder or push button device. | ||
| if (Serial.available() > 0) | ||
| { | ||
| char key = Serial.read(); | ||
| switch (key) | ||
| { | ||
| case 'F': | ||
| rx.setBand(1); // FM band | ||
| break; | ||
| case 'f': | ||
| Serial.println(F("Custom FM Band: from to 77 to 109 MHz - Step 200 kHz")); | ||
| rx.setCustomBand(3,7700,10900,20); | ||
| break; | ||
| case 'h': | ||
| Serial.println(F("Custom FM Band: from to 101 to 104 MHz - Step 200 kHz")); | ||
| rx.setCustomBand(3,10100,10400,20); | ||
| break; | ||
| case 'a': | ||
| case 'A': | ||
| rx.setBand(20); // AM band | ||
| break; | ||
| case '1': | ||
| rx.setBand(28); // SW1 band | ||
| break; | ||
| case '2': | ||
| rx.setBand(29); // SW2 band | ||
| break; | ||
| case '3': | ||
| rx.setBand(31); // SW3 band | ||
| break; | ||
| case '4': | ||
| rx.setBand(33); // SW4 band | ||
| break; | ||
| case '5': | ||
| rx.setBand(35); // SW5 band | ||
| break; | ||
| case '6': | ||
| rx.setBand(37); // SW6 band | ||
| break; | ||
| case '7': | ||
| rx.setBand(39); // SW7 band | ||
| break; | ||
| case '+': // sound volume control | ||
| rx.volumeUp(); | ||
| break; | ||
| case '-': | ||
| rx.volumeDown(); | ||
| break; | ||
| case 'o': | ||
| Serial.println(F("Power Down")); | ||
| delay(500); | ||
| rx.powerDown(); | ||
| break; | ||
| case 'c': | ||
| // Configure the Pre-defined Band (band index 26) to work between 5.7 to 6.2 MHz | ||
| // See Si48XX ATDD PROGRAMMING GUIDE, pages 17,18,19 and 20. | ||
| Serial.println(F("Custom Band: 5.7 to 6.2 MHz")); | ||
| rx.setCustomBand(26,5700,6200,5); | ||
| break; | ||
| case 'C': | ||
| // Configure the Pre-defined Band (band index 40) to work between 27.0 to 27.5 MHz | ||
| // See Si48XX ATDD PROGRAMMING GUIDE, pages 17,18,19 and 20. | ||
| Serial.println(F("Custom Band: 27.0 to 27.5 MHz")); | ||
| rx.setCustomBand(40,27000,27500,5); | ||
| break; | ||
| case 'I': | ||
| case 'i': | ||
| show_firmware_information(); | ||
| break; | ||
| } | ||
| } | ||
| if (rx.hasStatusChanged()) | ||
| { | ||
| showStatus(); | ||
| } | ||
| } | ||
|
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