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Elite 3.5 LCD ZUMspot kit user guide

Rev 1.0

MMDVM-Pi rev. 1.0 board

The MMDVM-Pi hardware radio interface is part of the Multi-Mode Digital Voice Modem open source
project. It combines the power of an ARM processor and analog radio interface to create a modem to
handle all amateur digital voice modes.

Содержание MMDVM-Pi

Страница 1: ...nc 1 Rev 1 0 MMDVM Pi rev 1 0 board The MMDVM Pi hardware radio interface is part of the Multi Mode Digital Voice Modem open source project It combines the power of an ARM processor and analog radio i...

Страница 2: ...usting signal levels hardware 4 Adding an external display 6 Configuring Pi Star including adjusting signal levels via software 8 Building MMDVM Pi firmware 11 On Windows 10 11 On Ubuntu 12 On macOS 1...

Страница 3: ...r DMR P25 Fusion NXDN and POCSAG Onboard LED to show receive signal level clipping Connection for OLED and Nextion LCD screens 8 pin JST Connector with pigtail wires Open source MMDVM firmware preload...

Страница 4: ...ni DIN 6 connector 3 RX audio White 9600 from radio 4 Signal ground Yellow GND 6 TX audio Green Audio to radio 7 PTT Blue PTT Adjusting signal levels hardware Here is a picture of the test points on t...

Страница 5: ...Radio RX end J1 X Enable DC blocking capacitor on Radio RX end J2 X Bypass 10K variable resistor J2 X Enable 10K variable resistor J7 X Disable DC blocking capacitor on Radio TX end J7 X Enable DC blo...

Страница 6: ...Adding an external display JP8 is where you can solder a header for connecting an OLED display JP10 is where you can solder a header for connecting a NEXTION display For connecting a NEXTION display m...

Страница 7: ...the RX audio trim pot counter clockwise will increase the signal level while turning the trim pot clockwise will decrease the signal level Turning the TX audio trim pot counter clockwise will decreas...

Страница 8: ...UM Radio Inc 8 Rev 1 0 Configuring Pi Star including adjusting signal levels via software From the Configuration menu set the Radio Modem type to ZUM Radio MMDVM for Pi GPIO and then select Apply Chan...

Страница 9: ...kit user guide Copyright 2019 2022 ZUM Radio Inc 9 Rev 1 0 Scroll down to the Modem section to access the invert and level settings then select Apply Changes Scroll back up to the top of the page and...

Страница 11: ...password again Once bash and Linux are installed install GCC for ARM At the bash command prompt type in the following instructions sudo apt get update sudo apt get upgrade sudo apt get install gcc su...

Страница 12: ...ike to readup on using homebrew visit https brew sh Once Homebrew has been installed run the following command brew install libusb autogen automake wget pkg config cmake openocd Install the ARM GCC to...

Страница 13: ...nd git clone https github com g4klx MMDVM If you get an error saying Could not resolve host it likely means that your network is setup for IPV6 and the Pi has not been able to acquire the IPV4 nameser...

Страница 14: ...sudo apt get install git gcc arm none eabi gdb arm none eabi libstdc arm none eabi newlib autoconf libtool pkg config libusb 1 0 0 libusb 1 0 0 dev Go into source folder cd MMDVM Get submodules by ru...

Страница 15: ...IP Address Go to Configuration Expert SSH Access Login to pi star Run command rpi rw Transfer binary from the previous section Building Firmware to the Raspberry Pi Should be under bin mmdvm_f7 bin Yo...

Страница 16: ...guide Copyright 2019 2022 ZUM Radio Inc 16 Rev 1 0 If a window pops up asking if you want to continue connecting select Yes Once logged in you should see a screen similar to this Navigate to the folde...

Страница 17: ...ommand curl OL https raw githubusercontent com veraabad MMDVM Pi_Update master MMDVM Pi_FW_Update sh Run the following command ls If you see something like the following image then continue to the Cop...

Страница 18: ...OS and Linux you can use the Terminal by running the following commands Go to MMDVM folder cd MMDVM scp bin mmdvm_f7 bin pi star pi_star_ip_address You will need to change pi_star_ip_address to the IP...

Страница 19: ...pi star Run command rpi rw Go to the folder where the binary is located This binary file was created from following the previous section Building Firmware Binary file should be under MMDVM bin mmdvm_f...

Страница 20: ...s the IP address of the Raspberry Pi Download Angry IP Scanner from https angryip org download It s available for Windows macOS and Linux Follow the instructions from the installer Once installed open...

Страница 21: ...r use under Windows 10 This is a web page with a good tutorial on how to use the mmdvmcal software tool and a spectrum analyzer to adjustment the signal levels for DMR https www f5uii net en installat...

Страница 22: ...2 ZUM Radio Inc 22 Rev 1 0 Pi Star Facebook support group https www facebook com groups pistar Pi Star Wiki http wiki pistar uk A web page describing the setup of an MMDVM repeater https sadigitalradi...

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