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Hello
I have chips with both revisions  0x2BA01477 and 0x1BA01477
At revision 0x2BA01477.
Keil gives me the message both when recording and when debugging the controller. But after the message it overwrites the flash and debugs the controller normally.....
Sorry about where the video is hosted ... but it was the first one I came across on google. They warn me that the video will be hosted on the site for only 2 days???
https://streamable.com/6zln8j

The valves are installed in a mountain apartment where, in winter, I go to spend some weekends.
You understand well that if I find a temperature below 10° it is not pleasant.
So, to save on heating costs, the valves always remain in anti-freeze mode and are then adjusted remotely as needed so that I have an acceptable temperature when I arrive.
From research on the internet I see that all those who have this type of valve, of any brand/model WiFi or Zigbee, have the same problem: alkaline batteries empty in 10/15 days.
I can insert any type of battery but if they are empty 2 days before my arrival I cannot adjust them remotely.
For this reason I thought of the circuit I posted, where the valves are normally powered at 5v (via AC)  and, only in the event of a power failure, they are powered by rechargeable batteries which are maintained at around 1.4v by the CN3085.
In the event of a power failure they are powered via diode D2 at 1.4x3-0.4=3.8v and considering that the NiMh discharge curve is quite flat, they still have a few hours of autonomy.
So my only doubt is related to possible malfunctions of the charge regulator due to diode D2

Here are some videos to give you some ideas. Not meant as a product endorsement. This guy sell rebranded AMSCOPE products, or at least get things from the same manufacturer just saying

https://www.youtube.com/watch?app=desktop&v=NfkXitg5R4I
https://www.youtube.com/watch?v=NtBiFHq2Qwc
https://amscope.com/products/led-6w
Edit: The camera look like a Lapsun 1080P 60FPS SONY IMX385 V2 according to this video
https://www.youtube.com/watch?app=desktop&v=5upKluG-qi8
looking more into it you can find all the products here https://lapsun.aliexpress.com/store/612308? spm=a2g0o.detail.0.0.7c9aJ6lAJ6lAGV (here they offer power adapters with the correct wall socket for your country)
or here http://lapsun.com/

Try This one
https://www.amazon.de/-/en/gp/product/B0C5MJFX1X/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

I have it and very satisfied. High enough so can solder below it,
The minus is that magnification is too high, and some times you need smaller one, but can not change. However it is perfect for my use (semi professional) and very low cost and very good quality. Can make video, shoots, working with internal batter, connection to USB as  also to PC.

heat camera is excellent addition for servive surely much better than finger sensory

a zoom between 1 to 10 would suffice the higher you go the shorter th focal length will be

you will mostly be using 4 to 7 depending on component size qnd your eyes

I use an Andonstar AD249S, both for inspection and for assembly, I find it excellent and has an affordable cost.

It’s mainly for repair really, I’ve also heard you can use and heat seeking camera to aid detect faulty components ?
I might be getting involved in repairs on circuit boards for someone and just weighing up the pros and cons

[Old_but_Alive]

why not try rechargeable Alkaline AAA batteries they give 3x1.5V = 4.5V

and claim 8800 mAH ( probably a total lie), but they work for me in my laptop mouse

you would need a charger of course, unless you get the lithium with USB socket

or lithium  https://www.aliexpress.com/item/1005004995221539.html?spm=a2g0o.productlist.main.21.39c855ffwMgXk9&algo_pvid=123cc867-063a-44fe-80ae-9125ab0d0de0&algo_exp_id=123cc867-063a-44fe-80ae-9125ab0d0de0-10&pdp_npi=4%40dis%21GBP%219.15%219.15%21%21%2111.32%2111.32%21%402103251f17167897442396752e66ee%2112000031283679561%21sea%21GB%21135358991%21&curPageLogUid=hzWSSXoYuqKI&utparam-url=scene%3Asearch%7Cquery_from%3A

I use this kind of 1.5v usb rechargeable battery too and they work very well.
I have them in mouse , radio, in my old photo camera and in my telescope too (8 of them !)
And like Old_but_Alive said , don't trust them on the mA/h they give , my AA battery are between 1300 to 1500mA and the AAA are in the 800-900mA.

Cheers

is it for repair or inspection
for repair its is ok with 10x and below 5-7x will be ok
if it is for inspection you can go higher

i suspect you are talking about stereo microscopes
there you get depth vision

you can check l rossmans repairs i remember that he talked about the most preferrable magnification when doing repairs
i cant remember when it was but it was some time ago

get one where you can adjust its magnification lets say 1-10x

also the focus length is also of importance movement to and away from the lens where it stays focused

Hi all,
I’m looking for recommendations for a good microscope with screen or with output for monitor.

I’ve got one of those cheap ones but it’s not very good