(KIT DIY) VU meter Indicator LED KA2284 LM3915 MCU
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IC KA2284 Audio Level Indicator DIY
Melody audible, visual music! Five-point LED audio level indicator kit
This package LED indication logarithmic 5:00 KA2284 integrated circuits as the core, Which is characterized as follows:
1. Constant current output
2. a wide operating voltage (3.5V--12V)
3. The ALC circuit without telescoped diode or transistor
4. Brightness level in amplitude can be adjusted
5.Chips : KA2284
6.PCB Board Size : 40X19mm
The KA2284 is a monolithic integrated circuit designed for 5-dot LED level meter drivers with a built-in rectifying amplifier. It is suitable for AC/DC level meters such as VU meters or signal meters.
FEATURES
*High gain rectifying amplifier included(Gv=26dB)
*Low radiation noise when LED turns on
*logarithmic indicator for 5-dot LED of bar type.
*Constant current output( 15mA)
*Wide operating supply voltage(3.5V~16V)
*Not necessary diode or transistor for ALC
*Minimum number of external parts required.
Schematic Diagram credits image to leetsacademy
The 10k Ohms blue variable resistor is a adjuster of input which how user satisfy the level of LED lights and their output of amplifier matching for indicator.
Check prices on Shopee or Check prices on Lazada
LM3915 10 LED Audio Level Indicator VU Meter
Schematic Diagram
MCU TYPE 12 LED 2CH Channel Audio VU Meter LED Level Sound.
The sampling time-sampling, so that there is dual-channel simultaneous parallel input signal changes fast, the amplitude of the two light bar display may vary, this is a normal situation. user can freely adjust each light bar and the main vertex of the real speed of light, with the most suitable for their own display. Audio input through the TI original signal isolation, the maximum to avoid the single-chip high-frequency interference to an audio circuit in series. Different colors of light alone provided a current limiting resistor.
Operating voltage consume: 7-12V / 100MA. positive and negative reversed will cause light damage level.
Display effect:
1. Strip show+after vertex travel whereabouts
2. Strip show after+the disappearance of the vertex travel
3. The strip display+no vertex display
4. Strip show+right after the vertex flow disappears
5. The strip display+three lights
6. Striped marquee display+vertex effect
7. Vertex+strip show right jump lamp lights two bits whereabouts
Material: PCB
1. Light color: 7 green+2 orange+3 red
2. Operating voltage: 7-12V/100MA
3. PCB size: about 80x14mm
4. LED module size: about 58x14mm
MCU Chip 32 LED VU Meter Level Indicator
PCB Size:105*10mm
LED size:82*10mm
24 Green+8 Red
Features:
1. Mono 32 segment widening lights to ensure adequate dynamic
range and fine enough.
2. Exclusive custom widening lights strip. ( There are no similar
lights in the market ).
3. The rising speed and the falling speed of the light bar, the
holding time and the falling speed of the peak can be adjusted
separately.
4. Real-time mode and AGC mode selection (super wide range of
AGC adaptive algorithm to ensure the best effect)
5. Small size, can be easily loaded into small case.
6. Single button operation.
7. brightness adjustment function.
Specific operation: ( There are LED instructions operating time )
MCU type Spectrum Display Module Stereo VU Meter Indicator Music Spectrum Analyzer 20-segment LED Level Display
Stereo VU meter indicator music spectrum analyzer 20-segment LED level display
Input Voltage: USB 5V or 12V
Display Characteristics: 20 Segments, 10 Levels
Frequency Response: 30-20khz
Dimensions: 200 * 26 * 25mm(Approx.)
DIY Kits 384 Pcs LED Lights Digital Audio Music Spectrum Analyzer Display
Great DIY kit for electronic enthusiasts in electronic applications.
5V USB power supply and 3.5mm audio signal input.
8.5cm x 23cm big size spectrum sound waves display screen.
384 pcs LEDs bring you the amazing music spectrum sound waves beating effect.
With clock function, can be used a clock, can display date, time and week.
Specifications:
Power Supply: 5V USB
Audio Signal Input: 3.5mm / 0.14in
Board Size: 8.5 * 23cm / 3.3 * 0.9inch
Material: Acrylic
Package Weight: 300g
VU Meter Audio Power Amplifier Panel Dual Analog
Specifications:
Cover material:PMMA+PS
Color:As the picture show
Model:P-78WTC-BGB-S106
Size: about 15.4cm/6.06"x1.8cm/0.71"x4.6cm/1.81"
DCR= 650Ω+-10%, If=500uA+-10%
Lamp :White Light x 3pcs
LED Lamp Voltage :12V DC
(With a resistor to limited the current for protect the LEDs)
Melody audible, visual music! Five-point LED audio level indicator kit
This package LED indication logarithmic 5:00 KA2284 integrated circuits as the core, Which is characterized as follows:
1. Constant current output
2. a wide operating voltage (3.5V--12V)
3. The ALC circuit without telescoped diode or transistor
4. Brightness level in amplitude can be adjusted
5.Chips : KA2284
6.PCB Board Size : 40X19mm
The KA2284 is a monolithic integrated circuit designed for 5-dot LED level meter drivers with a built-in rectifying amplifier. It is suitable for AC/DC level meters such as VU meters or signal meters.
FEATURES
*High gain rectifying amplifier included(Gv=26dB)
*Low radiation noise when LED turns on
*logarithmic indicator for 5-dot LED of bar type.
*Constant current output( 15mA)
*Wide operating supply voltage(3.5V~16V)
*Not necessary diode or transistor for ALC
*Minimum number of external parts required.
Schematic Diagram credits image to leetsacademy
The 10k Ohms blue variable resistor is a adjuster of input which how user satisfy the level of LED lights and their output of amplifier matching for indicator.
Check prices on Shopee or Check prices on Lazada
LM3915 10 LED Audio Level Indicator VU Meter
Schematic Diagram
MCU TYPE 12 LED 2CH Channel Audio VU Meter LED Level Sound.
The sampling time-sampling, so that there is dual-channel simultaneous parallel input signal changes fast, the amplitude of the two light bar display may vary, this is a normal situation. user can freely adjust each light bar and the main vertex of the real speed of light, with the most suitable for their own display. Audio input through the TI original signal isolation, the maximum to avoid the single-chip high-frequency interference to an audio circuit in series. Different colors of light alone provided a current limiting resistor.
Operating voltage consume: 7-12V / 100MA. positive and negative reversed will cause light damage level.
Display effect:
1. Strip show+after vertex travel whereabouts
2. Strip show after+the disappearance of the vertex travel
3. The strip display+no vertex display
4. Strip show+right after the vertex flow disappears
5. The strip display+three lights
6. Striped marquee display+vertex effect
7. Vertex+strip show right jump lamp lights two bits whereabouts
Material: PCB
1. Light color: 7 green+2 orange+3 red
2. Operating voltage: 7-12V/100MA
3. PCB size: about 80x14mm
4. LED module size: about 58x14mm
MCU Chip 32 LED VU Meter Level Indicator
PCB Size:105*10mm
LED size:82*10mm
24 Green+8 Red
Features:
1. Mono 32 segment widening lights to ensure adequate dynamic
range and fine enough.
2. Exclusive custom widening lights strip. ( There are no similar
lights in the market ).
3. The rising speed and the falling speed of the light bar, the
holding time and the falling speed of the peak can be adjusted
separately.
4. Real-time mode and AGC mode selection (super wide range of
AGC adaptive algorithm to ensure the best effect)
5. Small size, can be easily loaded into small case.
6. Single button operation.
7. brightness adjustment function.
Specific operation: ( There are LED instructions operating time )
MCU type Spectrum Display Module Stereo VU Meter Indicator Music Spectrum Analyzer 20-segment LED Level Display
Stereo VU meter indicator music spectrum analyzer 20-segment LED level display
Input Voltage: USB 5V or 12V
Display Characteristics: 20 Segments, 10 Levels
Frequency Response: 30-20khz
Dimensions: 200 * 26 * 25mm(Approx.)
DIY Kits 384 Pcs LED Lights Digital Audio Music Spectrum Analyzer Display
Great DIY kit for electronic enthusiasts in electronic applications.
5V USB power supply and 3.5mm audio signal input.
8.5cm x 23cm big size spectrum sound waves display screen.
384 pcs LEDs bring you the amazing music spectrum sound waves beating effect.
With clock function, can be used a clock, can display date, time and week.
Specifications:
Power Supply: 5V USB
Audio Signal Input: 3.5mm / 0.14in
Board Size: 8.5 * 23cm / 3.3 * 0.9inch
Material: Acrylic
Package Weight: 300g
VU Meter Audio Power Amplifier Panel Dual Analog
Specifications:
Cover material:PMMA+PS
Color:As the picture show
Model:P-78WTC-BGB-S106
Size: about 15.4cm/6.06"x1.8cm/0.71"x4.6cm/1.81"
DCR= 650Ω+-10%, If=500uA+-10%
Lamp :White Light x 3pcs
LED Lamp Voltage :12V DC
(With a resistor to limited the current for protect the LEDs)
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