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Firmware (C and HEX) files for the Multi-Channel Volume Control
The firmware files for both the PIC16F18146 (control module) and PIC16F15224 (OLED module) chips in the Multi Channel Volume Control.
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Pulse-type rotary encoder with pushbutton and 18t spline shaft
A five-pin rotary encoder with two mounting tabs that has been confirmed as the pulse type. Suitable for use in several projects published in the magazine (see below).
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0.96in cyan OLED with SSD1306 controller
A 4-pin (I²C) OLED screen in cyan. The display active area is approximately 22 x 11mm while the whole module is about 27 x 19mm.
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2.8-inch TFT Touchscreen LCD module with SD card socket
A touch screen display module as used in the Micromite LCD BackPack. Uses a 14-pin header for interfacing to the display (ILI9341 controller) and touch sensor, plus a 4 pin (unpopulated) header for the onboard SD card holder.
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Multi-channel Volume Control volume PCB [01111221]
The main volume control PCB for the Multi-channel Volume Control.
Double-sided PCB with plated through holes, green solder mask and silkscreen overlay.
82 x 94mm.
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Multi-channel Volume Control control PCB [01111222]
The power supply and control PCB for the Multi-channel Volume Control.
Double-sided PCB with plated through holes, green solder mask and silkscreen overlay.
87 x 50mm.
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Multi-channel Volume Control OLED PCB [01111223]
The OLED control PCB for the Multi-channel Volume Control.
Double-sided PCB with plated through holes, black solder mask and silkscreen overlay.
51 x 76mm.
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PIC16F18146-I/SO programmed for the Multi-Channel Volume Control [0111122B.HEX]
A PIC16F18146-I/SO 8-bit wide SOIC microcontroller programmed with the main firmware for the Multi Channel Volume Control (0111122B.HEX).
Note that this microcontroller is also available as part of the Control Module kit for that project.
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PIC16F15224-I/SL programmed for the Multi-Channel Volume Control [0111122C.HEX]
A PIC16F15224-I/SL 8-bit SOIC microcontroller programmed with the OLED module firmware for the Multi Channel Volume Control (0111122C.HEX).
Note that this microcontroller is also available as part of the OLED Module kit for that project.
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Multi-channel Volume Control PCB patterns (PDF download) [01111221-3]
Three PDF files with the PCB patterns for the Multi Channel Volume Control.
All three designs are double-sided, with both layers provided together in the relevant PDF.
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Multi-channel Volume Control control module kit
A kit that includes all the parts needed to build the control and power supply module for the Multi-Channel Volume Control, including the LCD touchscreen. You can connect up to five Volume Control modules to this to control the level of up to 20 audio channels (16 if an OLED Module is included).
See the link below for details on everything included in this kit. A 1m length of ribbon cable is included to connect the various modules in the system.
You will also need at least one Volume Control module. That kit is available separately, as is the optional OLED Module.
Note: the photo shows the fully assembled module.
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Multi-channel Volume Control volume module kit
A kit that includes all the parts needed to build one four-channel volume control module for the Multi-Channel Volume Control. Up to five of these modules (20 channels) can be used together, or four (16 channels) if an OLED Module is included.
See the link below for details on everything included in this kit.
You will also need a Control module, which also provides power to this module. That kit is available separately.
Note: the photo shows the fully assembled module.
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Multi-channel Volume Control OLED module kit
A kit that includes all the parts needed to build the optional OLED and control module for the Multi-Channel Volume Control, including the OLED screen and bezel (which is also the circuit board).
See the link below for details on everything included in this kit.
You still need the Control Module that powers all these other boards (kit available separately), and with this module, you are limited to controlling the volume of 16 audio channels (with four Volume Modules).
Note: the photo shows the fully assembled module.
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