kamilsss655 (Nunu)

Tech #1

Hi there!

Recently I've been looking to modernize my old flashlight Convoy S2+ that I've had for many years. It appears a lot progress has been made in the flashlight technology last time I c...

News #2

Hi there!

Here is something really cool I came across:

https://www.youtube.com/watch?v=RZvX95aXSdM 2025-10-29 19:27:10 +0000 UTC View Post

New models

Here are pictures of the new Quansheng models (from left to right):

• UV-K5 V3

• UV-K1 V3 with extended battery

• UV-K1 V3 with small battery

A...

Pictures of new radio model

Here is device report with pictures of the new Quansheng models.

I will be getting my developer samples of them soon, so I will keep you posted.

New Quansheng models

Hi! Here is a quick update:

Quansheng has sent me pre-release samples of their V2 versions of UV-K5 and UV-K1.

Here are some technical details I know of so far:

1. MCU modifi...

   2025-10-08 09:40:43 +0000 UTC View Post

Inactive accounts with payment declined

Dear Patrons,

I hope this message finds you well.

Recently, some of you may have received an email notifying you that your account has been blocked. I would like to clarify that all pre...

Upcoming new Quansheng versions

Quansheng did follow up with me and provided information that they are now working on a new version of UV-K5 and UV-K1 that will use new, upgraded MCU PY32F071C1BT6.

By the brief inspection i...

TK 11 update

Quansheng reached out to me with an update regarding the TK11 and other upcoming developments. Unfortunately, they’ve decided not to move forward with the TK11 "Open" firmware project. Despite pr...

#1 - DIY

I recently got the ZB2L3 battery capacity tester from Aliexpress. Overall it is an awesome device, but the resistors it comes with got really hot (not touch safe) during operation. I decided to qui...

Linux installation script

Here is my BTRFS RAID 1 on LUKS LMDE 6 installation script I've shared on one of the Timeshift issues I submitted: 2025-08-29 08:03:26 +0000 UTC View Post

PocketPD - cool project!

I just wanted to mention a really cool project I found. It is called PocketPD and it basically lets you turn your USB PD power brick into CV/CC bench power supply!

More info:

• 2025-08-27 19:37:51 +0000 UTC View Post

Quansheng DIY USB charger mod

I recently modded my Quansheng radio charger to work from the USB power source.

If you are considering doing that mod I recommend following IP2326 board from Aliexpress.

• it fits...

  2025-08-27 18:29:35 +0000 UTC View Post

TK11 open firmware - binaries

I got the TK11 firmware binaries from Quansheng if anyone is interested.

I also got some random libraries, but I don't think it is the firmware source code. Also these random pieces of code a...

Custom Linux installation scripts

Lately I have been doing some hardened desktop Linux setups for friends and family based on LMDE 6.

My setup included features like:

• full disk encryption with LUKS with paranoid...

  2025-08-18 19:22:40 +0000 UTC View Post

TK11 - "OPEN" variant

I've received the 'OPEN' variant of the TK11. The Quansheng sales representative is very friendly and professional. Even though they didn't have to, they paid the customs fee that was added during ...

Budget buys #1

From time to time, I’ll post some items from AliExpress that have proven to be a good value.

To start off, here is the Boruit D10 headlamp.

2025-08-04 09:09:14 +0000 UTC View Post

TK11 - new version samples

Hello!

Quick update: Quansheng has contacted me and offered a sample of the latest version of the TK11, which is expected to feature an open CPU and support third-party firmware development. ...

Affordable USB storage solutions - market review

Recently I helped out someone with a data recovery and as a followup I offered to help them out with some sort of external storage backup solution that would prevent data loss in the future.

...

DIGI modes and ESPRI

A while ago I was really close to get the standalone AFSK modem out of ESPRI project.

Here is the WIP PR: http...

Mesh network demo

Here is the mesh network messenger functionality which is included in my firmware starting from version 21.0.

Thanks to Eric for recording and sharing the video materials.

Quansheng TK11 samples

I received the samples from Quansheng, and I have to say, they went above and beyond. Not only did they provide these samples for free, but they also covered the duty fees imposed by local customs,...

Vectatus open-sourced!

I decided to open-source the Vectatus project including:

• firmware source code,

• schematics,

• gerbers, bom, cpl files required to order assembled boards. 2025-04-01 12:31:05 +0000 UTC View Post

News and updates

Hi there! Here are a couple of updates from me:

• Quansheng factory has reached out directly to confirm the shipping information for the new TK11 samples. Hopefully, they will send it o...

  2025-03-18 19:26:53 +0000 UTC View Post

Vectatus - charger mode

Vectatus now supports charging mode with user programmable voltage and current settings.

It also supports detection and indication of deeply discharged batteries.

Of course user can swi...

Vectatus efficiency tests

https://github.com/kamilsss655/vectatus/wiki/Tests

Vectatus - solar charger test

With my tiny solar panel mentioned in previous post I tried charging the alkaline battery. At first I was getting 0.5mA of charging current, and the solar panel voltage was dropping to 2V from 5V d...

Vectatus - solar

I tested Vectatus with small, 5V garden solar cell (8x4cm) and it works. The device starts, LED show output voltage correctly, and the output voltage gets regulated as advertised.

Of course g...

Vectatus updates

I've done some fine calibration of Vectatus to the point where I felt comfortable trying to connect the 5V output to my phone via USB C cable.

To my suprise it works!

The phone was able...

Vectatus is working!

First ever Vectatus board got assembled. It works!

Vectatus update

Vectatus now has programmable voltage snubber that can be adjusted from 100% to 0% to suit very voltage sensitive applications or inductive loads like motors that generate high voltage transients.<...