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Pico and analog video output

Posted: 2024-04-08 6:58
by Bel103
Can Luckfox Pico output an analog video? For example, as it does ESP32 using I2S
https://www.youtube.com/watch?v=5t1_XNc3vNw

Re: Pico and analog video output

Posted: 2024-04-08 7:54
by Crocodile
Bel103 wrote: 2024-04-08 6:58 Can Luckfox Pico output an analog video? For example, as it does ESP32 using I2S
https://www.youtube.com/watch?v=5t1_XNc3vNw

Hello, theoretically it is possible, but currently digital signal video outputs with higher transmission capacity and stability have gradually replaced analog signal video in the market. If you are interested in conducting research, the relevant pins of I2S are brought out on the Luckfox Pico. You can explore this. However, actual implementation may be somewhat challenging. If conditions permit, I would recommend using digital signal output, such as driving TFT screens via SPI interface.

Re: Pico and analog video output

Posted: 2024-04-08 10:35
by Bel103
Thanks, but I need to transmit exactly analog video signal due to current infrastructure(
So Luckfox rv1103/1106 dont has DAC to do this?
Unfortunately, I cant find "Lichee Pico". I remember board with similar name, but cant find it right now.

Re: Pico and analog video output

Posted: 2024-04-08 12:11
by Crocodile
Bel103 wrote: 2024-04-08 10:35 Thanks, but I need to transmit exactly analog video signal due to current infrastructure(
So Luckfox rv1103/1106 dont has DAC to do this?
Unfortunately, I cant find "Lichee Pico". I remember board with similar name, but cant find it right now.


I apologize for the confusion regarding the chip model. I meant "luckfox-pico".

In the datasheet of RV1106, it is mentioned that it features a 24-bit DAC channel (mainly used for audio output), which is sufficient compared to the 8-bit DAC channel of the ESP32 in the video you provided. However, unfortunately, in the pro/max series, we have not brought out the corresponding pins (they are available in the plus series).

Since the DAC in RV1103/RV1106 is used for audio output, if you need to carry out secondary development, you will need to consult audio-related documentation.
DAC.jpg

Re: Pico and analog video output

Posted: 2024-04-09 7:29
by ACBIAS
You might want to look at F1C100 / F1C200s chips, which are similar to rv1106 (but don´t have an Ethernet chip nor a neural processor).
Those have both analog input and output and support PAL & NTSC analog video.

Re: Pico and analog video output

Posted: 2024-04-14 19:10
by Bel103
ACBIAS wrote: 2024-04-09 7:29 You might want to look at F1C100 / F1C200s chips, which are similar to rv1106 (but don't have an Ethernet chip nor a neural processor).
Those have both analog input and output and support PAL & NTSC analog video.
Many thanks for the suggestion. But I need NPU(

Re: Pico and analog video output

Posted: 2024-08-08 0:42
by egor_k
Several months have passed since the last post. Is there any analog video output solution available that is compatible with Luckfox RV1106?

Re: Pico and analog video output

Posted: 2024-08-08 6:34
by Crocodile
Unfortunately, there is currently limited discussion within the community about simulating video output. By default, the internal driver already uses the DAC for audio. To achieve this, modifications are needed at the driver level, which is a rather complex task. At this time, we do not have any development plans for this.

Re: Pico and analog video output

Posted: 2024-08-08 8:32
by egor_k
Perhaps someone has tried converting a standard parallel video output to analog video?