Friday, November 23, 2018

Bluetooth Adapter for Nextion User guide




Test: 
AT 

Set Master

AT+ROLE=M

Set Slave
AT+ROLE=S 

Set Baud

Send:AT+BAUD2
Return:OK2400 ,support:
1--------- 1200
2--------- 2400
3--------- 4800
4--------- 9600(Default) 

5--------- 19200
6--------- 38400 
7--------- 57600 
8--------- 115200 
9--------- 230400 
A--------- 460800 
B--------- 921600 
C--------- 1382400 
  

Wednesday, November 7, 2018

Linux Base Operate and PI-STAR Operation System

1) Re install VIM

Enter ssh mode for PI-STAR
http://pi-star:2222/
Login as
usr: pi-star
pas: raspberry

1, uninstall the purge VIM (poor version)
sudo apt-get remove –purge vim (–purge full remove, include config files) 
sudo apt-get remove –purge vim-gtk vim-doc cscope (option)
sudo apt-get clean

2, Install Vim GVIM (full version)
sudo apt-get install vim 
sudo apt-get install vim-gtk vim-doc cscope (option)




2) ...

Monday, November 5, 2018

MMDVM Repeater User Case show - Sharing and experience

Purpose:
This article purpose is to collect and share MMDVM repeater user case and user sharing.

Reference:
UserGuide for MMDVM Repeater Kit Board (LinkerV3)
http://mmdvm.bi7jta.org/2018/04/about-nano-mmdvm-repeater-kit-board.html
https://mmdvm.io/blog/?p=532

Facebook page bi7jta (Share hub)
https://www.facebook.com/winters.cn

Facebook group (1,000+ member)
https://www.facebook.com/groups/nano.mmdvm/

Case 1,  MTR2000 , share by @ IW6BFE






Saturday, October 20, 2018

Monday, October 1, 2018

Connect to PI-STAR, First step to start your MMDVM toy

Quickly start guide
1  Plug in the power supply , require 5V2A(RPi 3B), 5V1A(RPi Zero W)

2  Configute network for your Pi-star,

1th: if there is a LAN port in NanoPi or RPi, insert RJ45 line, the routers automatically allocate the IP address, use a computer browser (must use Firefox or Chrome) to access the IP address, set up your personal information.


2th: open the phone, search the WiFi hotspot "Pi-Star"
then join it , password is "raspberry" , use mobile browser ,visit http://192.168.50.1,
add the WiFi you need in the WiFi setup column

Reboot.






* This way now just support inner WiFi adapter,not support USB WiFi.

3th: Add a shared WiFi on the cell phone or router, the default access WiFi:

SSID:888888-2G password: 0123456789 ,visit the dashboard as follows
iOS shares WiFi hot spots: http://pi-star.local
Other devices share WiFi: http://pi-star
Login User: pi-star ,Password :raspberry

Just for reference, SSID set to  888888-2G

If the domain name can not be identified, use IP tool APP like “FING” to find the IP address of the box.

3 Configute your digital radio
The default setting frequency is 433.550MHz, DMR mode, time slot 2, color code 1, and DMRid 4600000
Private call to  9990 ,use parrot mode for echo test.

Friday, September 7, 2018

MMDVM HDMI Desktop OS

Power requirements: HDMI screen, if power supply with raspberry 3B together, require more than 5V3A; separate power supply, ensure that the HDMI screen has 5V2A input.


Features: Touch support, need to connect between HDMI's MiroUSB and raspberry USB interface.





Hardware: 7inch HDMI Display-C (1024x600 I advise or 800x480) Raspberry Pi 3B/3B+(or Pi ZW) Duplex hotSPOT by VR2VYE && BI7JTA OS base on Pi-Star V3.4.15 for RPi 3B/3B+/ZERO Can upgrade to new version use ssh command as follow: sudo pistar-update && sudo pistar-ugrade
run startx to start UI
IMG download http://vr2vye.myq-see.com/download/ Discuss thread in facebook https://www.facebook.com/groups/nano.mmdvm/permalink/2073325829364721/ Continue update

Friday, August 31, 2018

User Guide for RPi hotspot with FAN, Simplex hotspot,Model MMDVM_AlloySPOT,RPiZW SPOT Basic Edition


[1] PCB interface definition








[2] Customize case
Reference the alloy case for duplex hotspot, the difference is the FAN inside, LED hole position not same as the case  for duplex hotspot.





[3]  About RX/TX Offset
This board use 14.7456MHz TCXO, default RX/TXOffset  = 0

[4]  OS
1) Pi-Star OS, 
RPi 3B, Zero W http://www.pistar.uk/download/
RPi 3B+ http://www.pistar.uk/beta/

2) Win 7+ ,reference here

[5] Modem Type


[6] Firmware upgrade
sudo pistar-mmdvmhshatflash hs_hat  
or visit http://mmdvm.bi7jta.org/search/label/Firmware_upgrade  

[7] User group
https://www.facebook.com/groups/nano.mmdvm/

[8] To buy
https://www.facebook.com/cqcqcq73

[9] Follow me
https://www.qrz.com/db/BI7JTA

Thursday, August 9, 2018

Pager Setting User Guide 0810





Download
Pager ID programming software
http://mmdvm.io/files/POCSAG/
for windows






Setting
Write your RIC and S/N ,frequency


Enable Night-light

Register your DAPNET account https://hampager.de/
Request your DAPNET Authorkey
Add your Pager to DAPNET
Test send message to yourself.

Run send message to yourself, change the Callsign.
sudo pistar-dapnetapi BI7JTA "Test message 144.5125MHz, RIC 123456"

Add your Pager RIC to DAPNET, one callsign can add multiple RIC



View log
tail -100f /var/log/pi-star/DAPNETGateway-2018-09-01.log  


Pager Feature && instruction
PLL or crystal, 137-199 MHz and 400-499 MHz, POCSAG. 

Please notice that the frequency you use.

*One device just with 4MHz bandwidth.
*The frequency can be customized in the frequency range, 4MHz bandwidth you can program when come out factory.

For example, your order 1x 439.9875MHz, you just can use 437.9875-441.9875 MHz.
You can not use 458.6625MHz when you customize 439.9875MHz.

*Default frequency is 439.9875MHz.

Warning




Q&A
1) You can use the default RIC id if can not write your ID, the first and the second have Beep Beep  voice,

2) Some language  Character coding not support in DAPNET server,  will cause unintelligible text, change to English is ok.

3) Some time DAPNET server connect timeout, try later or change network(WiFi).

Preview
MMDVM HAT can find in shop www.bi7jta.org/cart )





See also
http://vk3xem.net/2018/09/21/gp2009n-alphanumeric-pager/






Bluetooth Adapter for Nextion User guide

Test:  AT  Set Master AT+ROLE=M Set Slave AT+ROLE=S  Set Baud ...