Components
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Resistor 100K |
x 12 | |
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Resistor 4.7K |
x 2 | |
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Capacitor 10uF 16V |
x 14 | |
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Capacitor 100uF 35V |
x 1 | |
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Capacitor 100nF |
x 1 | |
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Capacitor 330nF |
x 1 | |
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PT2258 |
x 1 | |
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B3B-XH-A |
x 6 | |
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B2B-XH-A |
x 1 | |
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B4B-XH-A |
x 1 |
Description
PT2258 Volume Controller
PT2258 Volume Controler
This circuit controls the volume of up to 6 channels from 0dB to -79dB.
Connect this through I2C to a microcontroller, like an Arduino to control the volume. Sample code for Arduino below using this lib: https://github.com/sunrutcon/PT2258
#include <PT2258.h>
PT2258 volume;
void setup() {
volume.init();
volume.setMute(0);
}
void loop() {
for (uint8_t i = 1; i < 80; i++) {
volume.setMasterVolume(i);
delay(100);
}
}
Schematic and Layout
Schematic
pt2258_vol_control.pdf
Feb 23,2021
15,272 views
end-flag
PT2258 Volume Controller
2 Layers PCB 65 x 70 mm FR-4, 1.6 mm, 1, HASL with lead, Yellow Solder Mask, White silkscreen
PT2258 based 6 channel audio volume controller for 5.1 systems.
15272
20
6
9.46 (6)
Published: Feb 23,2021
Download Gerber file 479
BOM(Bill of materials)
PCBWay Donate 10% cost To Author
File Last Updated: 2023/02/08 (GMT+8)
File update record
2023-02-0804:18:18
Parts List (BOM) is updated.
Only PCB
PCB+Assembly
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No changes needed if using ESP8266 with Arduino core.
The schematics was already there as an image and the BOM in the description, but I added a schematic in PDF and the BOM in XLS.
Thank you