I don’t understand the insistence on digital radio. Why not analog?

— Alexis on 16.07.2018 at 17:21 (UTC)

@Alexis Mostly because I kind-of suck in RF design, so premade digital modules are easier :)

And things like echo cancellation and bidirectional communication are much easier to do digitally. Even digital radios don't usually transmit and receive simultaneously because it would disturb the receiver.

— Petteri Aimonen on 16.07.2018 at 18:41 (UTC)

I'm so glad I'm following you on via. feed - super cool project, even though it didn't turn out as you'd expected.

Hm, maybe that's something for Hackaday "Fail of the week"? :-)

https://hackaday.com/category/hackaday-columns/fail-of-the-week-hackaday-columns/

— Phil on 22.07.2018 at 15:06 (UTC)

@Phil, yeah, it is, just got published :)

— Petteri Aimonen on 23.07.2018 at 11:51 (UTC)

Did you try using ESP Now instead of normal Wifi? It's a much shorter protocol, less overhead. Might be better for noise and power usage, not entirely sure about data rate.

— Neo on 23.07.2018 at 15:38 (UTC)

@Neo

No, actually this is the first time I hear about ESP now. Sounds very interesting, but looks like there is no direct support for it in the esp-open-rtos platform yet: https://github.com/SuperHouse/esp-open-rtos/issues/653

— Petteri Aimonen on 23.07.2018 at 17:48 (UTC)

Did you every continued on with this Project? the Hackaday Comment were full of great advices on how to solve the noise problem. I could imagine this device to work with some adjustments. Maybe even RTOS was updated in certain parts to help even so. Great Project!

— Moses on 01.02.2020 at 17:06 (UTC)

Hello really loved the idea am presently working on such am a bit worry with the udp transmission of ADC output and the reception

— sonhana on 03.04.2020 at 08:53 (UTC)

Its neat and well studied. Thank you for sharing. At the very least you taught people like me to appreciate the intricacies and rigorousness of step by micro step circuit building and the precision needed for a project built from scratch.

— Kevin on 22.05.2020 at 08:07 (UTC)

Fun project!
I would try to lower WiFi output power to find out if the software works.

— Dick on 13.01.2021 at 08:10 (UTC)

Can't tell from my phone but a common problem is shared per and ground on the pcb, and traces too long acting as antenna. You don't necessarily need separate per supply but you fork the ground and power into analog ground and analog vcc at the point of entry, ie at the power plug or battery or buck boost converter. Analog is a tricky beast!

— Kevin on 07.04.2021 at 17:19 (UTC)