* * Software to convert background mask to 128圆4 at: * * IMPORTANT: Sound source must be grounded to the Arduino or other MCU's to work. * * Working portion of code was taken from Adafruit Example Sound Level Sketch for the * Adafruit Microphone Amplifier * * * Remaining code was written by Greg Stievenart with no claim to or any images or information * provided in this code. * This code must be modified to work with other display devices. OLEDMeter sketch was written for use with I2C SSD1306. Please feel free to modify and share * this code for any 128圆4 LCD or OLED. I have only seen marginal attempts to * animate meters and I hope this one will set a standard. * OLEDMeter was written to utilize any 128圆4 display. For Reverse light modification it is necessary to do the following: Below are codes for VU meters with linear scale and arc scale. However, it is better if you are able to get Oled displays with different addresses, or if there is a possibility, to change the address of one display with soldering according to some of the instructions given online. My OLED displays had the same I2C address, so I had to make two identical devices, which cost only a few dollars more as much as the Arduino. It can be made with just one Arduino, but in that case, OLED displays must have different I2C addresses. The device is very simple to build and contains only a few components.Īs can be seen, the VU meter contains two identical assemblies for each channel separately. Specifically in this case the codes are slightly modified(SSD1306 Oled), and in the hardware, part is added a simple input circuit (envelope follower) so that the VU meter can be connected directly to the output of the audio amplifier. Photo color might be a little different from the actual product due to color display of different monitors.The device is made according to the instructions of "stevenart" in the forum where you can also find the original code(for SH1106 Oled). Supersize with exquisite appearance: cool black case, 2PCS blue VU meters, and clear indicators look vintage and dynamic, can perfectly match a variety of usage scenarios, very suitable for audiophiles who have more than one amplifier or speaker.Īudio input: Channel 1 & Channel 2 RCA / XLR / MicrophoneĪudio output: Channel 1 & Channel 2 RCA / XLRĭimensions(W*D*H): 450*305*163mm / 17.72*12.13*6.42in Independent volume control: Two control knobs to adjust the volume of channel 1 or 2 seperately, each channel is independent and does not interfere with each other, without affecting the output sound quality, convenient to use. MIC/LINE Switch: support to switch between MIC and LINE two kinds of inputs at will, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets, it can protect the interface and increase the service life. also equipped with dual-channel microphone input, dynamic decorative audio environment. Now use the upgraded version: AC 90-245V universal voltage.Īs the large panel is easy to have static electricity in winter, please wipe it with a damp cloth before using it.ĭual-channel VU meter: with dual-channel RCA/XLR input and output, the input is compatible with MP3, phones, computers, CD Players, and other audio devices, the output can be connected to active speakers, amplifiers, mixers, etc.
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