Added code to support selection of the 4 available filters (via remote or rot/enc).Added support for white text on black background.Various serious bugs fixed (vol control etc).You also need a wire connecting the DUE’s GND to one of the DAM’s “ISO GND” pins. You need to connect the DUE’s TX3 and RX3 respectively to the DAM’s “ISO RXD IN” and “ISO TXD OUT” pins.
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This new Universal shield will also take care of the serial connection to the dam (with isolation) but that can be done easily without a shield (if you don’t want galvanic isolation): just connect three wires from the DUE to the isolated serial port of the DAM (enabled since firmware v0.99). However, this shield is only really necessary if you need filter selection memory (the code saves the selected filter / input to the EEPROM). The shield has its own page: Universal Signal Isolator shield for the Arduino DUE You should keep in mind that this code is designed to be used with the Universal shield that I have developed for this purpose. The bitmaps should go into your sketch’s folder. The fonts should go into your UTFT & UTFT_DLB directories, usually found in the Windows user’s Documents folders (for example, here: c:\Users\\Documents\Arduino\libraries\UTFT_DLB\).
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Full graphics support in the minimal display.Minimal display mode as default. Goes into full display when changes are to be made to parameters.Supports full IR remote control functionality. Supports a large range of remote manufacturers.Displays incoming signal sampling rate and type.Switches between the four supported filters.Switches between the two supported s/pdif inputs, as well as the I2S input.The code is currently at a Beta stage, meaning that it is functional but not complete. However, IMHO connecting a computer and typing at a keyboard is not the most practical approach for controlling a DAC, so I decided to make a “dam1021 edition” of my TFT HiFiDuino code. It is possible to access these features by using the dam’s built-in serial port. It supports three digital inputs (Coax & Optical S/PDIF and I2S), high precision digital volume control and the uploading of user-generated filters. This is the home page for the ArDAM1021 Project, an attempt at controlling the Soekris dam1021 Sign Magnitude R-2R DAC by an Arduino.