Module radio tuner IC, NXP TEF6686

Място за дискусия на приемници, антени и друга радио техника, предназначена за DX приеми.

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marsel90
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Re: Module radio tuner IC, NXP TEF6686

Мнение от marsel90 »

Sketch arduino compatible with NXP-TEF6686 (F8602/F8605) controlled with TEF-GTK.

Download here:
https://github.com/marsel90-1/NXP-TEF66 ... uino-Radio
UKFMDXer
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Re: Module radio tuner IC, NXP TEF6686

Мнение от UKFMDXer »

Is there a sketch for AM/FM for the Nico Florica PCB with the LCD2004 display? It would need an extra button to change band. I would like a standalone version for emergency use. The TEF6686 can be used on MW/LW with my amplified loop aerial it gives much better results than my Tecsun PL390. I built an adapter so the amplified loop aerial can be battery powered and I can run the TEF6686+Nano on a 5v battery pack for many hours.
I'm using the older TEF6686 module purchased in March 2021.
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marsel90
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Re: Module radio tuner IC, NXP TEF6686

Мнение от marsel90 »

Test this sketch as well. Standalone - 4x20 LCD and rotary encoder with 'push mechanism are sufficient for basic use
https://github.com/renekint/tef6686_pa1rkt_arduino
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Re: Module radio tuner IC, NXP TEF6686

Мнение от UKFMDXer »

marsel90 написа: съб мар 12, 2022 6:55 pm Test this sketch as well. Standalone - 4x20 LCD and rotary encoder with 'push mechanism are sufficient for basic use
https://github.com/renekint/tef6686_pa1rkt_arduino
Thanks for this. I will need to look at this carefully. Some interesting things in the code - TEF initialisation data is in "tef_init.h" which is where I will need to set the crystal frequency. Everything is controlled from the rotary encoder and push switch - with 'short press' and 'long press'.

I will download the extra libraries and try this in a few days time as good weather is predicted next week and first I want to try making another aerial and testing it.

DaveB
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marsel90
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Re: Module radio tuner IC, NXP TEF6686

Мнение от marsel90 »

We made the simplest pcb for TEF when used on the computer and the TEF-GTK interface.

Изображение

https://www.pcbway.com/project/sharepro ... 7c25a.html
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Re: Module radio tuner IC, NXP TEF6686

Мнение от UKFMDXer »

Thanks for the recent posts marsel90.
I tested out the sketch from pa1rkt after changing the line in the tef_init.h file so that it runs with the 4MHz crystal. It works OK, but is very basic.
Here is my test rig for the LCD display and encoder - it is also very basic.
TEF6686_LCD2004_test_rig.jpg
TEF6686_LCD2004_test_rig.jpg (96.18 KиБ) Видяна 632 пъти
The support brackets for the display are from a Meccano set and just the right size.

I have an enclosure for mounting a pcb with just the tuner and Arduino. 100 mm x 66 mm x 43 mm. It cost about 14BGN from AliExpress including delivery. I will cut one of the boards I already have so it fits the enclosure. I just need to remove 14 mm from the edge where you would mount the buttons and encoder.

Your new pcb layout looks very good - the pcb traces between the tuner and Nano are much shorter and direct than on Nico Florica boards. It may reduce interference when using a whip antenna - but I am connected to outdoor aerials - so it is not a problem.

Thanks for your continued help.

DaveB
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Re: Module radio tuner IC, NXP TEF6686

Мнение от ukdx »

I'm in need of another TEF6686 module. Has anyone here used one of these from this seller? They look suitable for the interface?
https://www.aliexpress.com/item/1005002851995173.html
Icom R8500, Elad FDM-S3, RSP1A, RTL SDR.
RX888mk2, airspy. TEF6686 & GTK interface.
W4KMA 17-100MHz custom Log Periodic.
Korner 19ele BII, Korner 19ele BIII.
Отговори

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