The Walksnail Avatar HD Mini 1S VTX which was mentioned along with photos in another post (HERE) has now been listed for sale on the Walksnail website at $109 USD.

The weight of the VTX is 6.8g and the weight of the camera is 3.5g, so that's a total of 10.3g. Note that no antenna is included so you have to purchase your own antenna separately.

It has the same 25.5mm mounting holes as the full size Avatar HD VTX.

Caddx Web Shop: https://caddxfpv.com/collections/digital...ini-1s-kit
Flywoo Web Shop: https://flywoo.net/collections/new/produ...ini-1s-kit

Definitely got my attention !!

An overview / review of the Walksnail Avatar HD Mini 1S VTX by Gal Kremer below.

One additional thing to note is that this VTX is limited to 350mW compared to the full 6S version of the VTX with heatsinks on (which can go up to 1200mW).

Why do the goggles have no alternative settings for the 1s vtx it's all the same power levels as the full size. Also there is a warning that the firmwares don't match every time you boot up even though they are both on the latest official firmware releases. The little bastard gets hot after fiddling around in the menu for less than a minute it stutters and lags like crazy until it cools off again.

Did you use the offical firmware for the 1s unit? Ive yet to try out mine but the firmware differs between vtx versions. As for version missmatch message, apparently that was fixed with the pulled firmware.

I've seen a few reports complaining about more inconsistent latency with large spikes with randomly dropping bitrates from the 1S Avatar HD VTX compared to the full size VTX, even at close range. It has been suggested that that use of just a single antenna on the 1S VTX might be compromising signal reliability. The 1S VTX also uses a different power amplifier compared to the full size VTX so it could be to do with that too. So, something to keep an eye on for anyone using this VTX.

For anyone who was wondering what the current draw of the Walksnail Avatar HD Mini 1S VTX is when connected to a regulated 5V supply, it has been measured as 370mA. This means you should be able to safely power the VTX from a regulated 5V pad of most FC's without the need to connect it direct to a 1S voltage supply or to an external 5V BEC.

EDIT: The above value is indeed incorrect as mentioned by ph2t in post #8 of this thread. The actual current draw is just over 1A at the full 350mW power output as shown in post #16 of this thread. So make sure the 5V BEC onboard your FC can supply this amount of current along with current it is also supplying to other components such as the receiver, a buzzer and GPS module if any of those are installed. If in doubt, use an external BEC.

Something to keep in mind if you decide to power the VTX direct from a 1S LiPo is that if the voltage unput range is 3.1V to 5V, so if the voltage drops below 3.1V the VTX will suffer a brownout and you will lose video. Due to voltage sag on 1S LiPos, when people fly them they can sag below 3V momentarily, or people will fly them down to 3V or just below in order to get maximum flight time.

Yeah I found that value for current draw to be incorrect.  It's actually over that value by a fair bit.   On 1S rigs I power mine straight off battery.   Two AIO FCs I've tried can't power it well enough and direct connection to the battery is required.   Step-up DC-DC booster 5V regulators that come on the FCs I've tried just can't provide the required power.

I found those values posted in the WS discord to be incorrect, the OP prolly had a current controlled power supply and limited the amp draw and was in CC mode instead of CV mode hence the lower values.  Lipos won't limit the current draw and push as much as they're internal resitance allows.

I'm not 100% on this current draw - so far I've found the betafpv elrs AIO (12A V2 and 5A models of AIO) can't drive the 1S vtx well enough.

The issues with smearing and latency do occur.  I've found running at 500mW setting (350mW in reality) helps this.  I also run a TBS dipole antenna, not a lhcp one.   The dipole works well for proximity flying the small quads are usually for.   The lastest production firmware (28.xx.xx) has improved these issues and upped the current draw on the VTX considerably.

FYI, Walksnail have a new re-designed Avatar HD 1S VTX in the works which is a few grams lighter than the current 1S VTX and is closer to the weight of the HDZero Whoop VTX. No word on an actual release date yet but it's coming. The current 1S VTX hasn't even been on the market for very long either. Like I always say, never by the V1 version of any product

Well, it looks like the new version of the Walksnail Avatar HD 1S VTX mentioned in my previous post is already released. 

The video that JB put up a couple of days ago (HERE) on comparing the different Flywoo 2S Nano Baby 20 variants (analog, HDZero, Walksnail Avatar, and DJI) shows the Avatar HD version to have the new VTX installed. While it still has a 25.5mm x 25.5mm mounting, it appears to have a slightly smaller overall size with less of the board sticking out beyond the mounting holes, and the bind button has moved from the centre position on one of the sides to closer to one of the corners. Overall weight is said to be slightly less than the original, but there is no official data on that yet.

As of today, the Caddx Website still shows the original version on their product page with the larger board and the bind button in the middle along with specs and size / weight of the original version (see HERE), so it's unclear what version you will get if you order one from Caddx. Maybe they will deplete their stock of the original version before shipping out the newer version to customers.

Here is the new version of the 1S VTX from JB's video. Note the position of the bind button in the corner next to the stand-off on the left side of the screenshot below, and notice how little the board protrudes past the stand-off mountings...



Now compare it to the original version of the 1S VTX which has the bind button right in the middle on the side of the board on the right side of the screenshot below, and the board protrudes a little further out from the stand-off mountings...

Flywoo already sells the new version, but with no new details.

(27-Nov-2022, 02:57 PM)radla Wrote: Flywoo already sells the new version, but with no new details.

As of today, Flywoo still show the original Walksnail Avatar 1S VTX on their product listing along with the specs, size, and weight for the original version. I also see nothing in the listing stating that it's a newer version, but they obviously have access to the new version because it's installed in their 2S Nano Baby 20 Avatar HD quads.

Here is the Flywoo produxt listing for the 1S VTX -> https://flywoo.net/collections/new/produ...ini-1s-kit

Strange, the last days there was a new version badget on the product page.
I ordered one and get a confirmation with the new version. Yesterday they send me the shipped information, but without the "new" in the title:

When it arrives please let us know which version you actually got sent.

I don't think that this will be interesting in 2-3 weeks, because it usually takes that long, but I'm happy to do it.