FT911A Transmit icon hangs

I solved the issue of the transmit icon staying in blinking mode and not due to hanging PTT or others </p

Procedure:

  • Switch OFF your FT991A.
  • Power and USB have to be physically disconnected. Pull the connectors.
  • Wait for 30 seconds
  • Re connect the PWR and USB and switch the FT991A to ON

That’s it !

RS232-TTL

Once upon a time somewhere in 2015 i bought a couple of these little converters RS232 tot TTL.

T2k60XXmhOXXXXXXXX_!!12774208

Here is how they work

From the RS232 Port – RX, TX and GND.  Thats the -> -<and the – signs.  Easy enough

– GND

-> RX

<- TX

On the TTL (Arduino)  side – DO NOT USE 5V use 3.3V as this toasts the device and heats up and like tops itself.  It certainly got very toasty when I put 5V across it.  This could be because I messed up somewhere in the wiring but it certainly works well for me.  I can also use the SoftwareSerial library as well so I don’t need to use TX/RX on the TTL Serial pins 0 and 1

So TTL is

– GND

-> – PIN X

<- PIN Y

For my device I used PIN 0 and PIN 1 – TX/RX – but I guess you can use other pins.

TTL RS232 Pinouts
TTL RS232 Pinouts

 

 

 

Hope this helps – it does work!

 
 

Gadgets schematics

Often i buy myself some small gadgets, only to forget about them .This plcae is my storage of these items and their technical descriptions etc


3Watt audio amplifier

PAM8403A

 


Stepmotor driver : EASYDRIVER

EasyDriver v4.4

http://www.schmalzhaus.com/EasyDriver/EasyDriver_v43/EasyDriver_V43_Description.png

http://www.schmalzhaus.com/EasyDriver/index.html


AETHER DIGITAL POTMETER

1pc NEW Aether X9C103S Digital Potentiometer Module F

Supply voltage: 3V-5V
Chip: X9C103S
PCB board size: 2.7 * 1.3CM
10K span potentiometer.
Colour is sent by Random
Potentiometer center tap between 0-10k slide in total 100 (potentiometer wiper typical impedance 40 ohms)
VL and VH digital potentiometer sliding rheostat port corresponding to the low-end and high-end, allowing the input voltage range -5V to + 5V.
Package Included:
X9C103S Digital Potentiometer Module


433MHz RF receiver module specificaties:

– Product Model MX-05V
– Werkt op: 5V
– Ontvangstfrequency: 433.92MHZ
– Ontvanger gevoeligheid:-105DB
– Maten: 30 * 14 * 7mm

433MHz RF transmitter module specificaties:

– Product Model: MX-FS-03V
– Werkt op: 3.5-5.5V
– Werkmodus: AM transfer rate: 4KB / S transmit power: 10mW
– Zendfrequency: 433M

433Mhz RF zender en ontvanger


 

RADAR DETECTOR

Shengyang MH ET Live HB100 X 10.525 Ghz Magnetron Sensor 2 16M Doppler  Radar Menselijk Lichaam Inductie Schakelaar Module voor Ardunio - Aliexpress


AT-09 – Bluetooth

Arduino – AT 09 BLE module

https://www.studiopieters.nl/arduino-at-09-ble-module/


Opentracker_OT+SMT

https://www.argentdata.com/products/otplus.html

OpenTracker+ | Argent Data Systems

 

OpenTracker+ | Argent Data Systems

Openwrt/Lede & APRX

Just before years end i have compiled the latest OpenWRT LEDE & APRX, and added OpenVPN and OpenSSL to it.  The files can be found in the download section. If you have another router, then drop me a line, or call me at DMR at 204 / 2044 or 2045.

Latest Openwrt – APRX images – 19-05-2017

I have added new firmware packages and the latest APRX package in the download section. In case you need firmware for another router, please let me know and I see what I can do.

To install just the package, do as follows….
ssh into your machine (normally something like sss root@(ip-of-machine)
Then change into the tmp directory and execute:

/etc/init.d/aprx stop
wget https://www.pa0esh.com/svn/aprx_2.9.0-Stable_brcm47xx.ipk
chmod 755 aprx_2.9.0-Stable_brcm47xx.ipk
opkg install aprx_2.9.0-Stable_brcm47xx.ipk

In case the installer tells you that you have already the latest package, change the command into:
opkg install aprx_2.9.0-Stable_brcm47xx.ipk –force-download

Erik, pa0esh



Firmware request Openwrt & APRX

Please use this form to request a tailor made firmware for Openwrt & APRX, enabling you to setup your own iGate / Digipeater for APRS.

Your Name:*
E-mail:*
Description of router and firmware requested:*
Type the characters you see here:

* Indicates required fields

APRX 2.9.0

The latest firmware images for Openwrt & APRX have been uploaded in januari 2017. See the download section.
Ans see Google groups for more info…. https://groups.google.com/forum/#!forum/aprx-software

To install just the package, do as follows….
ssh into your machine (normally something like sss root@(ip-of-machine)
Then change into the tmp directory and execute:

/etc/init.d/aprx stop
wget https://www.pa0esh.com/svn/aprx_2.9.0-Stable_brcm47xx.ipk
chmod 755 aprx_2.9.0-Stable_brcm47xx.ipk
opkg install aprx_2.9.0-Stable_brcm47xx.ipk

In case the installer tells you that you have already the latest package, change the command into:
opkg install aprx_2.9.0-Stable_brcm47xx.ipk –force-download

You can test which version you are running:

type aprx -V from the prompt

currently on openwrt the version nummer is not correct but instead will show: 5.05-333-g160eb5d

/etc/init.d/aprx restart

 

Firmware request Openwrt & APRX

Please use this form to request a tailor made firmware for Openwrt & APRX, enabling you to setup your own iGate / Digipeater for APRS.

Your Name:*
E-mail:*
Description of router and firmware requested:*
Type the characters you see here:

* Indicates required fields

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