Did the USB C sockets have the CC1 and CC2 resistors? So they can request 5V from a other source

6:10 "Now I did not check... but I assume that if they get it right here, they should get it right there." Famous Last Words.

Hello friend with the Swiss accent. In case you don’t hear it enough, I’de like to thank you and also applaud you for the way you have setup your channel. Your content is extremely well planned and laid out without all the bloat of other UKpostsrs in this space. Lean and clean to the point and. I find myself going back to your videos many years later as a reference point when needed. Looking forward to more truly high quality content next year ! 🙏🏽

Will be interesting to see the usage of the LTE ESPE2

"RC Nun" sounds like the title (and plot) for a Sister Act sequel.

For Andersen power connectors, grab a tube of zinc (dielectric) grease and give the sliding connections a good swab with it. They tend to oxidize if left alone with voltage on them for a long time, and the grease helps immensely. If you can't use the grease, disconnect and reconnect them a couple times every other week or so to scrape any oxidation away from the connection points.

1:34 ... Really like the tiny pointing hand 🤭

Nice reviews Andreas, I am looking forward to the RTK video with the XPLR-HPG-2.

The Andersons and xt60 panel connectors are awesome, thanks Andreas

Nice review(s) Andreas. I was definitely disappointed in the power meter error. I find it so common on every battery monitor that I’ve tried that I’m in the process of designing my own. That way I have control over all the error sources (ADC gain error, offset error, non-linearity, etc) and can compensate accordingly.

Yes! I've been waiting for you to evaluate GPS RTK!

Always love these. So fun

The UBlox eval board video report will be informative. It likely employs "RTK" which uses data from Control Points and sends via Cellular all Satellite corrections to achieve the 10 centimeter or so accuracy; it also provides vertical accuracy at that level.

A good use case for the Ublox would be treasure burying, or cable underground mapping. Nice !!

The power meter may need calibration for zero current. The chep meter I have required a reset button press at 0A

Definitely looking forward to that gps product video

Looks like the product I used for me starling build, rcnun. The plug I have had from a long time. They were cheap once.

I appreciate the useful DC connectors. I used to hate the endless variety of DC connectors on consumer electronic and tried to "standardize" on 3.5 mm coaxial connectors for all my projects. That cut down my inventory in my parts bin but was in many cases inappropriate and gave up too much utility. I will try a more nuanced approach in the future.

Thank you for a useful and interesting video. I look forward to the u-blox video though I suspect the cost of the board and necessary u-blox service will mean it's not a hobbyist item - at least for me!

looking forward to the ublox video

Some years ago I bought a few exactly the same looking ones from a brand Daygreen. Mainly plastic ones with big screw terminals for smaller currents but also a few for higher current that looked identical. I found them very reliable and also able to handle the max rated current with a stable voltage. Nowadays they seem to have raised the prices and these RC Nun branded ones seem more affordable. Great to hear you've found them reliable as well since I've been weary of their quality due to lower price. The name doesnt exactly sound very professional either. It seems common for these brands to pick seemingly random Western words for their brands. Good example are those common relabeled "Liitokala" Li-Ion batteries. In Finnish "liitokala" translates to "flying fish".

Hi Andreas! Great info in this video as usual from you! I was intrigued by the power meter issue and tried to find other mentions of it and could not find any. Still in the videos I've watched it always seems that a battery is used and that got me thinking that it might be an issue with noise from the power supply not been filtered correctly by the meter current sensing circuit. Also, it might worth updating the firmware on the meter.

There goes my "end-of-year bonus"....

Just bought stepper motors and some linear rails with a $5 discount for every $25 spent in my region from aliexpress.

Offset error on the power meter sounds a lot like a common mode error on the diff amp on the current shunt. Somehow sad. It would be a really cool device!

I checked the prices of things I have in my cart on ali, most didn't change even if they say that they did.

13:40 Be careful showing the SIM card. It might show some sensitive codes :)

Curious if I could use a 1A rcnun module as a leadacid/starter battery trickle/maintenance charger in my campervan powered from the victron mppt auxiliary output

Could it be that the power meter is using a Hall Effect sensor to measure currents? If so, then you should be able to see quite an offset when approaching it with a magnet.

Do you think Walter would be a good choice for me if I wanted a Device that could send Telemetry from a RC Plane / Drone like Position, Speed, G-Force and so on to a Server in a fast Way - so the Data could be displayed almost in Realtime?

Oh andreas you asumed 😂

these ones 11:26 have one big disadvantage: you cannot connect through them the modern USB-C power supplies with PD - simply not having CC1 and CC2 to pull down, will tell to the power supply: I don't need any voltage. And there is no power.

Usefull reviews Andreas ! How did you get Walter ? Not on the market yet, isn't it ?

*Summary* 1. *Power Meter WM150 50V/80A* - *Timestamp:* 0:47 - 4:30 - *Price:* $29.52 (free shipping) - *Positives:* - Good build quality with a nice display. - Counts capacity and displays a graph. - Precise measurement for current (amps). - *Negatives:* - Misreads current when no load is connected (0.45 ampere error). - Maximum 150A rating is misleading; it's 80A continuous. - Consumption discrepancy (measures 250 mA consumption while actual is 30 mA). 2. *RCNUN DC-DC Converters (Buck and Buck-Boost)* - *Timestamp:* 4:37 - 7:33 - *Price:* Ranges from $11 to $40 - *Positives:* - Low radio frequency interference (RFI) for buck converters. - Versatile input ranges (buck-boost converters). - Multiple power options available (40A, 6A, 3A, 1A). - *Negatives:* - Uncertain RFI performance for buck-boost converters. One of them is good, though. 3. *DC Connectors (XT30, XT60, Anderson Power Poles) and Tricks* - *Timestamp:* 7:36 - 10:27 - *Price:* XT60 connectors 10 pieces for $10.80 + $3.37 shipping - *Positives:* - Variety of sizes and types (XT30, XT60, XT90, Anderson). - XT60 box mountable connector available. - XT60 connectors have a weatherproof cover option. - *Negatives:* - XT30 connectors may be too small for some applications. - Anderson connectors are more expensive than XT connectors. 4. *Wired USB-C Power Connectors* - *Timestamp:* 10:31 - 12:00 - *Price:* Square ones 10 pieces for $3 + $2 shipping, round ones 10 pieces for $4.71 + $2 shipping - *Positives:* - Easy to mount (clip-on and screw-on options). - Suitable for cases without 3D printers (round version). - Pre-soldered connections. - *Negatives:* - Only for power delivery, no data transmission capability. 5. *Walter, an ESP32 with NB-IOT Functionality* - *Timestamp:* 12:04 - 17:00 - *Price:* Not provided. - *Positives:* - Includes LTE functionality. - Compact and open hardware design. - Features a popular ESP32 microcontroller. - *Negatives:* - LTE functionality not tested in the video. - Relatively new product with limited user feedback. 6. *UBLOX C214 RTK Precision GPS Board* - *Timestamp:* 15:01 - 17:00 - *Price:* Not provided. - *Positives:* - Offers centimeter-level navigation accuracy. - Includes additional 4G functionality. - *Negatives:* - Complex technology may require additional learning. - Specific use case (precision navigation). Disclaimer: I utilized ChatGPT 4 (10 Nov 23) to condense the video transcript into a summary using this prompt: "the following is a transcript, where the speaker shows different products. make a bullet list for each product with price, positive and negative findings. also show the timestamps so that a reader can easily jump into these parts of the video."

Does 2G, GPRS not work in Switzerland? Or is that too slow?

Why no links to the 'UBLOX C214 RTK precision GPS board'

🙂

Hi sir, this question is unrelated to this video i just have a question cuz i know you know a lot about this. How can i power the esp07 module just the chip, cuz when im powering it thru vcc and gnd with 3.6 the led is just open but the program i put in it is not working. I use a programer module to program the chip.

Oh, I thought the 1m GPS restriction was for civilians and that only militaries or authorized users can get access to better accuracy.

Anyone have good search terms for very flexible USB C PD cable? I bought the soldering iron in part 1 and want a very flex cable. Thanks.

Ublox explorer kit -- does anyone know about its availability and pricing? The link provided (as of Nov 12, 19:58 PST) has a "contact us" which ask for detailed information, e.g. about a project, number of employees of your company &etc. In the U.S., to get centimeter precision several years ago required equipment costing thousands of dollars, I'm wondering just how much less this product might be.

I can't find what I am looking for on aliexpress. No search box on the sale page, and they lump electronics in the same category with nose hair trimmers. 6 hour search, zero results.... The only thing that makes sense of this sale, would be to buy things where the shipping was too high..

With these USB-C connectors there is no communication, so it can only deliver 5V and devices will probably only draw 100mA

My daughter is on VOXI uk, on the Vodafone network. In her home, she has never had a good voice or data connection Can anyone recommend a Vodafone network booster that just plugs in and is cheap

curve tracer link is kaput

Looks like cheap aluminium cables on the watt meter

What metre?

GNSS*

Centimeter precision? No, I don't believe it. You will have to create a 5x5 meter grid, with points on each coordinate to prove it to me. Difficult.

Consider replacing the term "Chinese factor" mentioned at 6:45, with a neutral term like "Derated Current Maximum".

toolkitrc products are... habitually inaccurate.

No more Elektroschrott?

Someone decided to "standardize" (as if they had the right to do so) on Anderson Power Pole connectors for Ham radio. Very poor choice and thus a very bad decision. I think I'll order-up some XT60s, LOL !!