Re: RS-HFIQ and Raspberry Pi
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Thanks?for that update, Shirley.? I did have a pi-sdr from SV1EIA but sold it along with the UHFSDR I built years ago. Now R Pi 4's are available, I was hoping I might be able to put something together myself with a low cost codec breakout board to go with the RS-HFIQ, since all the software now seems to have been created?to make a standalone everything box!
Tony
On Mon, 21 Aug 2023 at 16:28, Shirley Dulcey KE1L < mark@...> wrote: The Pi SDR IQ Plus is similar to that concept, but using an SBC from Orange Pi rather than a Raspberry Pi. Although it's most commonly used along with a PC, there is also firmware for standalone operation. (You still need a monitor, and a USB keyboard and mouse.) The next step, which hasn't been taken, would be a more capable front panel controlled by the Orange Pi, with some buttons and knobs so you would not need a keyboard and mouse. That Orange Pi is somewhat dated now (it's similar to the Raspberry Pi 2), but the designer now plans to offer the Raspberry Pi HAT-type board to use with a Raspberry Pi 4, bringing its computing power up to date. Sadly, nothing is currently being shipped due to the parts shortages, but SV1EIA plans to do another round of products soon.
Doing a standalone version with a Raspberry Pi would require the addition of an audio interface to do voice modes. Unlike the Orange Pi model used in the Pi SDR IQ Plus, the Raspberry Pi line does not have a microphone input, and the audio output is done via PWM rather than with a proper audio codec. The performance requirements aren't as high?as for the codec used for the I/Q input and output, so an inexpensive USB interface or board using I2S to communicate with the Pi would do. Or perhaps he will update the board to include a second audio I/O for that.
On Mon, Aug 21, 2023 at 6:15?AM Tony Abbey < tabbey01@...> wrote: I am new to this group, so forgive me if this has been raised before - a simple search didn't find it.
I have an RS-HFIQ and have grafted an STM32F746G-Disco board onto it, with code from Charles Hill. It is gathering dust due to me opting out and buying an ICOM 7100 which I have grafted an external panadaptor onto.
I am excited to see all the effort that has gone into the R Pi code with the sBitx, so it would transform the RS-HFIQ tx/rx if it could be driven in the same way. It looks like we just need a decent codec for the R Pi. Has anyone done this already?
Tony
G3OVH
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