KIT ST4732 from China (Firmware Update)

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See how to update the firmware on:
About PU2CLR SI4735 Arduino Library:
Be a member of Facebook group Si47XX for Radio Experimenters ()

New features

* The final code (HEX file) is about 2.5K smaller than the previous one (now you have more memory to add new features);
* Twenty three bands. Two VHF(FM); one LW; two MW; and Nineteen SW bands covering from 1800 to 30000 kHz;
* Band, Volume, Step, Bandwidth, AGC/Attenuation are now controlled by encoder;
* __"Vol-"__ buttons is free to implement new features. It has no function for while;
* __"BAND-"__ now is used to control Softmute Attenuation;
* All the previous status of the receiver can be rescued when you turn it on (including SSB mode, bandwidth, volume, frequency, BFO etc);
* The bandwidth now is a property of the band (you can use different bandwidth for different bands);
* Bandwidth control on FM mode (Auto, 110, 84, 60 and 40 kHz);
* Bandwidth control on AM mode (1, 2, 2.5, 3, 4 and 6 kHz);
* Bandwidth control on SSB mode (0.5, 1, 1.2, 2.2, 3 and 4 kHz);
* AGC (Automatic Gain Control) and Attenuation control;
* Softmute Attenuation Control;
* FM/RDS presentation was improved;
* The seek function was improved (it is more precise on FM mode). The seek direction is controlled by the encoder (clockwise or counter-clockwise. Press encoder push button for seeking
* Steps: 1, 5, 9, 10, 50 and 100 kHz;
* Now you can configure MW band space to 9 or 10 kHz;
* New FM band from 64 to 84 MHz;
* New MW band from 531 to 1701 kHz for Europe, Africa and Asia;
* The frequency on Display is bigger than the previous version;
* Now the bandwidth sequence is ordered by bandwidth values;
* After about 4 seconds, all command buttons are all disabled and the encoder control goes back to the frequency;
* The current status of the receiver will be stored only after 10 seconds of inactivity.

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