VFD music spectrum screen is a classical vacuum display device with the pickup and STM32F103 processor to display a unique music spectrum 10 display modes; one key to learn environmental noise and calculate the display threshold; 2 sleep modes built-in clock can It is the clock or it can be the audio spectrum depending on the situation. Horizontal distribution of 25 frequency bands vertical display of frequency band voltage gradients dual-mode input silicon microphone MEMS and audio input with STM32F103 processor to analyze and display the sound spectrum. Configurable functions: MEMS gain setting noise learning setting display speed setting sleep pattern setting clock setting. Product size Length height and width: 176x50x28mm power supply: Type-c 5V-2A can not use fast charging; 12V-1A power supply should not have too much noise clean power supply is the best Necessary matters needing attention: the light column on the far right keeps beating one bar in a quiet environment which is a normal situation. The situation will only last for 10 seconds. After jumping to the clock it will return to normal to avoid noise interference. The music spectrum needs to reach 3 bars when it starts. Brightness beaming bar below the clock please know before buying. VFD music spectrum Electrical Characteristics: br Input Voltage: 5V Type-C/12VDC br Sleep current: 0.03A 5V br Working current: 0.3-08A 5V br Input channel: Audio input X1 br Frequency Response: 600Hz-20KHz br Input Impedance: 50kOhm br Dimensions LWH: 176x50x28mm br Screen material: glass br Shell material: acrylic PMMA br MCU: STM32F103 br Display resolution: 25 segments and 15 levels br br Option Description: br MODE Display mode selection 0-10 br GAIN – gain setting br Range: 0-19 The gain is gradually increased the default value: 0; br LEARN Noise learning setting press up/down to enter noise learning mode the bottom display br A horizontal line any sound produced during this process will be sampled as noise saved and will be filtered out as much as possible when actually displayed. br SPEED speed setting 0-4 from slow to fast the default value is 2; br SLEEP Sleep setting 0: no sleep; 1: display the clock when quiet; 2: close when quiet; br br Sensitivity – br 1. Adjustment of the back input attenuation potentiometer for audio cable br 2. The GAIN option adjusts the internal gain applicable to the pickup mode br —————– br Precautions: br 1. Please connect the power supply according to the specified parameters so as not to damage the motherboard please use the power supply certified by the relevant agencies; br 2. There is high voltage in the machine and it is forbidden to touch the exposed part during use; br 3. Do not immerse in water or use in conditions with humidity higher than 90% only indoor or car use; br 4. Do not use any solvent or liquid other than anhydrous alcohol to wipe the screen; br 5. Glass vacuum device no vibration; br
Vastarry Vacuum Fluorescent Display Music Spectrum VFD Music Spectrum Music Control Level Audio Indicator Rhythm Analyzer Music Spectrum Level
$24.79