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Farhan explicitly stated the zBitx will have an RPi Pico W: " Hence, the zbitx sports a new microcontroller, the Raspberry Pico W (with Wifi and Bluetooth on it!) that handles the front panel. This

The Raspberry Pi Pico is $4. The Pico 2 (a newer version with more CPU power and flash memory) is $5. The wireless variants are an extra $2 but I don't think the zBitx is using one; it already has

The zBitx is called the zBitx because it is based on the RPi Zero 2 W (Zero Bitx), and the RPi Pico W is being added to compliment the RPi Zero 2 W, not replace it. As for the Pico vs ESP or other

Hi Rob, I wonder if there is a 2KOhm or so resistor that is not on the schematic?? That would explain the voltage on RD21.? With LD6 removed, the mic is out of the picture. Can you send a picture

The Pico brings something to the table that those alternatives do not: PIO peripherals. Those let you take most hardware protocols, including non-standard ones, and turn them into something that is

Disconnected WF4RC, Rob Carroll [signature_2773767641] From: BITX20@groups.io <BITX20@groups.io> on behalf of Raj vu2zap via groups.io <rajendrakumargg@...> Date: Monday, March 10,

In general, GPIO is not the best way to interface a display IMO: it might lead you away from being able to use the GPU, and even worse, maybe you’ll waste cycles with bit-banging. (It’s been that

Alternatively, I would ask , why a PICO and not an ESP32 ? Cheaper also ! Regards VU2UPX gmail.com@groups.io> wrote:

Rob, is this with mic or mic unplugged/disconnected ?

Thanks everyone for the discussion, much appreciated. I did find a typo in my measurements documentation. The base is 2.9 v not 3.9. That resolves the concern with QD1. Using a fluke 8062 to measure.

Farhan might I ask whi the pico and not just add a pc8575 or pc8574 i2c gpio expander into the mix if you need more gpio. I think the z2w over pico w is alot better and mre power performance.

sbitx is being praised while zbitx is being talked about. Those who have little knowledge of the knowledge of certain components believe that one day it will be able to do what the sbitx can do with

QD1 is toast, the base to emitter voltage is too high! Recheck and if you find Voltage between base-emitter is much more that say 0.7 volts then replace the transistor and you audio will be

Aaron, The radio works out of the box, have no doubts. However, you can tinker with it if you want to, but no one insists on it. The sbitx wouldnt be what it is without the contributions of so many

Great !!

Solution found. It was chiefly the BFO - and for all I know, I might have set it wrong in the first place 2-3 years ago when I swapped out the board, and never knew.?? I took the advice on the

From what I understood the email from Farhan was explaining that in the future should there be any need to update the firmware to the raspberry pico that to avoid issues with end users needed to

I'm confused with all this. When I open the package, install the batteries I want it to work. I'm not interested in jumping through a bunch of hoops like the DX FT-8. Please don't ship until it

Pierre, As Farhan said: The Pico is updated by the RPi Zero 2W, the user doesn't get involved beyond attaching a USB cable from one device to the other (that's how I understand it) Ken, N2VIP

There appear to be one or more measurement errors here. The bulk of the measurement suggest that the transistor is indeed within its linear range despite the unexplained base emitter voltage. So I