Open interface

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!Front side [https://remoteqth.com/img/wiki-oi26-panel.png|noborder] {TOC} * '''KEYER''' - CW speed potentiometer. * '''SET''' - button menu of CW keyer. * '''1-3''' - memory button (hold 1 or 2, switches CW output between CW/PTT 1 and 2). * '''CW''' - red light LED. * '''PTT''' - green light LED. * '''FSK''' - blue light LED. * '''X''' - green light LED (reserved outputs from Arduino). * LCD - shown menu CW keyer and played characters. * '''+''' - increase transmit audio volume button. * '''-''' - decrease transmit audio volume button. * '''M''' - mute transmit audio button. * '''RX audio''' - receive audio volume potentiometer. !Back side [https://remoteqth.com/img/wiki-oi26-back.png|noborder] * '''MIC''' - 3,5mm jack Microphone input. * '''RADIO''' - DB25 female connector for Radio. ## +13,8V (150mA) power input. ## CAT CTS. ## CAT TXD / Icom CI-V. ## not use. ## USB D+. ## AGNDC. ## TX isolated. ## PTT1 out '''(max 50V/400mA).''' ## CW1 out '''(max 50V/400mA).''' ## FSK out '''(max 50V/400mA).''' ## MIC input. ## TX audio. ## RX audio. ## Ground. ## CAT RTS. ## CAT RXD. ## USB +5V. ## USB D-. ## RX isolated. ## PTT2 out '''(max 50V/400mA).''' ## CW2 out '''(max 50V/400mA).''' ## reserved out '''(max 50V/400mA).''' ## Foot sw input. ## TX audio GND. ## RX audio GND. * '''PA PTT''' - Cinch PA PTT output '''(max 50V/400mA).''' * '''USB PC''' - isolated USB connect to PC. * '''FOOT SWITCH''' - Cinch foot switch input. * '''PADDLE''' - 6.3 mm stereo jack CW paddle input. * '''12V DC''' - Arduino DC power only - not use. * '''KEYBOARD''' - USB A female connector for USB keyboard (with Arduino Mega-ADK only) * '''ARDUINO USB''' - non isolated USB for Arduino firmware upload only. * '''DTR/RTS''' - DTR/RTS outputs ON/OFF - because the specifications of winkey defines default as ON, you need to have the ability to disable the outputs. !Block diagram [https://remoteqth.com/img/wiki-open-interface26-blok.png] !Cable *[Icom|https://remoteqth.com/hw/openinterface-icom.pdf] *[Kenwood TS-480|https://remoteqth.com/hw/openinterface-kenwood-ts480.pdf] *[Elecraft K2|https://remoteqth.com/hw/openinterface-k2.pdf] !Preset jumper [https://remoteqth.com/img/wiki-open-interface26-jp-plan.png|noborder] * '''JP2''' - switch DTR between FSK or CW outputs. * '''JP1''' - switch CAT interface between Icom CI-V and Kenwood/Yaesu UART. * '''JP3''' - acess DC to your microphone (short) - suitable for electret microphone. * '''JP4''' - Analog ground for codec - default short. !Keyer control more about firmware and keyer control on [author website.|https://blog.radioartisan.com/arduino-cw-keyer/] * Firmware [keyer_pin_settings.h|https://remoteqth.com/download-count.php?Down=hw/open-interface26-pins.h] !Configure control software After connect power on DB25 back side connector and plug usb, windows find device and install it [https://remoteqth.com/img/wiki-open-interface-win-1.jpg] After reboot show two serial COM and USB codec in device manager [https://remoteqth.com/img/wiki-open-interface-win-2.jpg] * [Winkey in wintest configuration|Open Interface Winkey configuration] * [FSK in MMTTY configuration|Open Interface FSK configuration] * [Fixing a bricked FTDI chip] !! Kenwood CAT with [FTDI FT-PROG|https://www.ftdichip.com/Support/Utilities.htm] you can set invert RXD and TXD [https://remoteqth.com/img/wiki-oi-ftprog.png] ![How to assemble the DYI case|Assemble case for Open interface] [https://remoteqth.com/img/wiki-case-20b.jpg|link=Assemble case for Open interface] ![PCB assembly Manual|Open interface assembly manual] [https://remoteqth.com/img/wiki-open-interface26-plan-b.png|link=Open interface assembly manual] ---- Development-> [Open interface III]