Function declaration. Function Menu selection by a button. It has three different operations as following: 1. Test Mode. Press button before power on, then power on, IC will enter into test mode automatically. In this mode, it can test led and circuit. 2. Change Display Mode. ( press the button less than 1.5 seconds) It will change a display mode by short press one time button(less than 1.5 seconds). 2.1). S1 Mode: slow flash 1. It will display “S1” on LED screen. In this mode, It's the slowest display and update. 2.2). S2 Mode: slow flash 2. It will display “S2” on LED screen. In this mode, Its speed is appropriate. 2.3). F Mode: fast flash. It will display “F” on LED screen. In this mode, It's the fastest display and update. 3. Sensitivity Mode. ( press the button more than 1.5 seconds) It will change signal detection sensitivity by long press one time button(more than 1.5 seconds). 3.1). L Mode: low sensitivity mode. It will display “L” on LED screen. In this mode, It can filter weak jamming signal, It is not sensitive to the interference of power supply. 3.2). M Mode: medium sensitivity mode. It will display “M” on LED screen. In this mode, It can filter the weaker jamming signal, Signal detection sensitivity. 3.3). H Mode: high sensitivity mode. It will display “H” on LED screen. In this mode, It can filter the weaker jamming signal, It is sensitive to the interference of power supply. NOTE: This kit has 64 pcs LEDs, you can weld LED on any solder joints from D1 to D64, and you had better weld them in one row or one column by the same LED. Product item KKK908 Package: 1 x 4 Color 8x8 FFT Audio Spectrum Analyzer Audio Indicator Voice Control Matrix LED Red/Blue/Green/Yellow Electronic DIY Kits
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