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Short and sweet, thank you for this review. 🙂 Complete info too. Would you know which model can also check for internal resistance?

Very useful information, thanks!

Actually you can manually compute for the estimated mah of a battery, I'm using Liitokala D4XL and im just computing for the battery capacity. Its not that accurate but still how, it works.

47 picofaradios

Have you got your money back? Have you tried to remove the marking with Acetone or other solvent?

hola, gracias, puedes hacer que apagar el led sea atenuado?

How to increase sensivity than? :)

When I solder a wire to the top solder pad to create an external touch pad the everything gets more sensitive the longer the wire. Thinking about testing different capacitors with a wire to see if I can get the results I want. I want to have to make contact with a 2' wire. Thanks! This video helped a lot.

I have problem that when I power up, the led turns on & off continuously., even i don't touch it. What should I do?

Hi, i did the exact same thing on four different power banks. Prior to dissembling they could charge and discharge. After i harvested they don’t work on my flashlights or fans, but all button top batteries that i purchased work. Any tips?

This charger will charge up 32650 and 32700 Lithium Batteries

Good stuff this is the only video how to decrease sensitivity thank you 🙏

How to increase sensitivity??

Why is the screen rotated 90 deg.?

I want the exactly opposite to increase the sensitivity. What can be done here 😊🙏

I love the Attiny85! I'm a fan of it!! To be honest I don't really use the UNO much. Either Attiny85 or Esp8266. Very interesting your video! For different reasons. Let me explain myself: I live in the countryside and I have some beehives, which unfortunately started being attacked by the 'Asian hornet' some years ago. I fight them with electrical 'harps' which do their job quite well. The harps are connected to a 12V, 48Ah battery which is connected to two 24V solar panels through a Victron MPPT converter. The system stops the supply to the harps at night. I used to use a timer for that. The problem is that the timer broke and now I'm trying to replace it with an LDR plus relay, plus Attiny85. As the Attiny85 cannot be debugged, or at least I don't know how to, I use a Nano to test the code and then mount the circuit. So far so good, but two problems here: 1. the Attiny runs between 2.8-5.5V, then I need a voltage regulator if I'm going to use the 12V, which I don't really fancy 2. the Attiny is not running properly with the LDR. Probably problems with the code. I'll have to check it thouroughly. Although somewhere I had read that the Attiny Looking for information, I had read that instead of an LDR I could use a solar panel. Exactly like you!!, and that's why I find your video fascinating. I have small 6V solar panels which could do! The only problem is that I don't program the Attiny at low level. Do you know interesting sources to learn how to? Thanks, Pablo

Здравствуйте. Спасибо за видео,очень познавательно.Можно задать Вам несколько вопросов.Хочу приобрести данный модуль,а русскоязычных обзоров нет,при переводе комментариев ,не все корректно и доступно в понимании - онлайн переводчик многое искажает.Могу ли я данный модуль использовать для заряда Li-ion аккумуляторов,для питания каких то своих устройств в пределах доступных характеристик.Что бы Вы порекомендовали по охлаждению данного модуля(справляется ли штатный вентилятор или что то можно самому доработать),какие минусы и плюсы.Да и собственно стоит ли покупать это устройство или присмотреться к более лучшему чем это. Спасибо. Hello. Thank you for the video,very informative.I can ask you a few questions.I want to purchase this module,but there are no Russian-language reviews, when translating comments, not everything is correct and accessible in understanding - online translator distorts a lot of things.Can I use this module to charge Li-ion batteries,to power some of my devices within the available characteristics.What would you recommend for cooling this module(whether the regular fan copes or something can be modified yourself), what are the cons and pros.And in fact, is it worth buying this device or looking at a better one than this. Thanks.

I bought a lot of attiny85 fakes and in fact when I get them they don't work! I found out that if you reset the fuses they work fine afterwards!

47pf 50v?

Nice video. I believe the charger is putting the same amount of current into the AAA battery as it would with an AA at the 1A setting. As you suggested, that is higher than ideal for an NiMH AAA, but it does work. The only way to get it to charge any battery at the lower 500mA setting is to charge more batteries at one time. I would prefer the 500mA setting for AAAs. The charger doesn't allow as much control as some of the chargers with more features, but it didn't cost $50 or more. Do you know if this charger will go into 500mA charging mode with only 3 batteries charging? Or does it have to have 4 batteries charging?

Could have been even better if you explained the step up feature.

how can i determine the mah (capacity) of a battery with this device?

Can i use it to discharge batteries i want to put them at 50% to store it

Nice details and demo. Hopefully proves handy someday when I figure out a good use for the 20 I have. Maybe I can stop the dog from licking everything and switching things off/on randomly. ;>) Keep having fun!

Please note that despite the description, I don’t consider that this device has over voltage protection. In professional systems, over voltage protection normally means a separate independent detection / sensing system that switches the unit off or otherwise disables the unit (possibly by clamping the output) if an over voltage condition is detected. By independent, I mean not part of the normal voltage feedback regulation system. The voltage spike at switch on is almost certainly due one or more of the following reasons: Maybe the speed of the DC-DC converter to transfer power is significantly faster than the time the voltage feedback regulation system takes to adjust the output power. It could be due to a capacitor in part of the feedback/control circuit taking time to charge up, or just poor design. Or it maybe that the original design had a ‘soft start’ system (so that the output voltage ramps up more slowly rather than rapidly) and then this feature was removed without further consideration of any unintended impact. However, considering the relatively low cost, this inexpensive unit is fine for loads that are tolerant of these limitations.

I liked this. Found your explanations clear and easy to follow. Did you use a diode somewhere, like the GND from solar panel? Maybe to 4056 and maybe also the ATtiny. Saw it marked on the PCB, but didn't see close enough to determine if used or hear mention of size/type. I'm actually today playing with similar circuit, just testing some 'Solar Converter IC' to see if I can get a useful 3.7v Li-ion upgrade.(Have a bag full of options) TBH, I am leaning towards your Attiny method for both power extension and non-static display, likely easier too. I think I need a stack of your boards....

Looks like another handy Attiny programmer shield to add to the collection. Please consider using more close-ups and 360 degree views along with specific parts names/details in video or description for future videos. I enjoy your topics and presentation, and think you are heading in a good direction. Personally I just find more details helpful in many ways for my viewing experience. I often wish to recreate, modify or incorporate CZcams things I see, and don't want to reinvent from scratch someone else's idea/demo and like a defined starting point information. General preference not "What I did" vs "How I did this" (Hopefully helpful comment, no criticism intended) Looking forward to your content.

Interesting. Learning PCB design myself currently, using similar components. Appreciate your passing info along as it really helps in a timely manner.

Cool, I have several batches and now I'll be able to test them. Good info and handy for me. Too bad about the declined refund. Probably would have to check if the invoice was original as well in trying to deal with some sellers sometimes. Like that will happen.

FYI, I get a pretty strange waveform, when it goes into current limit: czcams.com/video/JiEiGJToLJU/video.html

After a bit more usage, and response from FNIRSI on the surge, I don't think its a safe device for projects. They said that you can turn it on with your device not connected, then connect to avoid the surge, that's not a solution.

Thanks for the video it was most interesting for me personally I would have stuck with the hand made board for a one-off project but if you think you can sell them then move it over for a final test and put them on Tindi if the demand is there go for it

UPDATE: Aliexpress declined the refund ‐--------- The seller has provided the authorization file from the brand owner / purchase invoice to prove the item was original.

Set int OctX = 0; and reuploaded the sketch- seems to have fixed the high/level bug on the buzzer....

Great content. what in Life is beautiful to You? Oh, and happy repeat day! :D

Amazing Stuff. The world should be a place Of love! Also, I Want to be friends :3