I just received my Maynuo M9712 DC Load about a month ago, its "exactly" the same as your unit for about US$440 from AliExpress. I can send the supplier link if anyone wants one from there, as I the first supplier replied "there were not any left in China"... well I got one from another supplier and fast! I also managed to get my hands on the isolated USB adaptor for US$40... wish I had access to your video before that purchase to make one myself... although the one I got works fine. I think there are a few of these units under different brand names, I have not seen any bad reviews of the different variants. I am very glad to have it in my lab... already used it a few times and couldn't have done without it.... the PC connection/software is great.
Both your videos and EEVblog have help me equip my lab, providing great advice based on both of your vast experience. You are doing great work Andreas, keep it up!
I purchased a Maynuo M9712 300W load some time ago, it looks like a copy of the BK precision unit you showed, only price is closer to the one you purchased. AND you cover it later in the video... good stuff.
at 5:55 it should be a voltmeter across the shunt resistor, it measures the current flowing across a known resistance using ohm's law by measuring the voltage across the known value of the shunt resistor
Theoretically, you are right. For me, a meter which measures Amperes is an Ampere Meter. Usually, you would name it on the panel in Amperes and would select the shunt that the reading really is Ampere...
@Andreas Spiess, I understand what you are saying, but to my mind you're wrong. Please consider a noob-user watching your video; this user would switch a multimeter to measuring amps and connect it as you show. This will result in confusing readings compared to what the user expected. That's why I agree with @nicktohzyu, either you show a voltmeter parallel to a shunt resistor OR only a amp-meter in series with "the circuit" (no shunt). That way you don't confuse inexperienced watchers :-) You could put a box around the shunt and volt-meter and call the box an amp-meter. In general I really like and appreciate your work and videos!!! But this is a mishap, that I think you should correct. Ich freue mich auf Eure nächstes Video ;-)
I totally understand about the display Andreas, I love those blue fluorescent displays. I have an ancient second hand Fluke bench meter with a VFD and I love it.
Yeah I bought such a power module dps3005 and a metal casing (all components were included but I connected the switch on the back differently to turn the fan on for high loads or off when on very small load) It's very handy and cheap for a lab power supply for a hobbyist! I run it from a laptop power brick which supplies around 19V only but can deliver several amps, and that's enough for most electronics that only require up to 12V.
+Geert Goossens I think, this is a good concept and a useful second life for a laptop power supply. I also have such an idea for the traveling Hobbyist, which anyway always has a Laptop with him.
Excellent video Andreas, you've convinced me, I need to invest and get myself a proper electronic load, it will save me the trouble of messing with the cheap ones. I was looking at these two for quite some time (Maynuo and Itech). Also having the multimeter grade display, saves you from using an additional two instruments..
I enjoy it so far. But, of course, it is only for people like you and me. Many others will be happy with the cheaper versions, if they do not use them too often.
Good day Andreas and congrats on your new equipment! Nice video again; great explanations to help many makers understand better. Great work! (Btw. you probably already know, but if you have multiple of those cheap 1A/2A Usb load-resistors, they can quite easily be converted to 1A/0.5A. See the video on my channel, which also refers to your comparison)
I have that Maynuo load you mentioned. Specs are good but the manual is completely useless. The cryptic 14-segment VFD is pretty confusing without documentation.
Another useful video but power supplies need to be tested for noise, transient response etc. if they are going to be used on a serious electronics bench. Some shots of your lovely scope and the new load switching between currents would have been nice.
+Mike Hudson You are right. I looked at the noise, but did not include it for this video as most of the viewers will use it to power digital circuits. The transient response is also important for some applications. I try to keep my videos between 10-20 minutes, so, this time, I omitted both.
Great video. I like the analysis. The electronic load is a little pricey though. Maybe in the future you will find a cheaper load like the power supply and review. Your work inspires me to put out some videos too. So far I have not but I think I will soon.
Thanks. Your comparisons are quite good. Enough info to get a good idea but not over the top technical. Actually I bought 2 types of radar boards based on your reviews. Still in the post so I have not tested them yet but you saved me a lot of guessing and reading a ton of sites.
Thank you for yet another informative video! I got interested in the DPS5005, so I checked the specs. It seems it's a voltage step-down device that takes up to 55 V and steps it down 50 V max. I guess you have another power supply feeding the DPS5005 around 40V DC, which in turn is connected to mains power 230 AC(?) So this spawns 2 questions: What power supply was that supplying the DPS5005, and what were you testing in this setup then? I think you were testing a power supply and a voltage step-down in conjunction. Ie, in this setup, can we always be certain that the last device in the chain (here the DPS) is at fault if we get "crappy" results? Sorry if this question is somewhat basic and badly formulated, I hope it's understandable :-)
For this test, I used my bench power supply and only at 12 volts. And you saw the performance of the bench power supply in one of the other tests: It is ok... So, I really tested the DPS5005. For a proper setup, I would use a 48V constant voltage supply and connect the DPS5005 to hat. Then, you would get a decent PS for up to a little more than 40 volt.
The DPS5015 is better bang for the buck with 3x the power in my opinion. The only reason to use the DPS5005 is if you need the compact size or if you want the USB/Bluetooth computer controlled version of it. Pairing it with the proper sized low cost (but not low quality) SMPS is the way to go for a low-cost bench supply
Hello Andreas, first thank for all your knowledge sharing. I wish also to get a DC Load, I just want know if now do you have a updated verdict about the It8512A+? My second choice is the M9811, both are more or less at same price. The largest display on Itech seems also great for me, but still the software seem better on the Maynuo. After few months of usage do you think is still a good choice or you recommends another device in place ? Thanks again for your channel
Morning Andreas. So I see you are tempting me to buy some serious electronic equipment 😀 Once again a subject that I had no proper understanding, but now hmmmm. Might have to be on my Xmas list. Great presentation as always👍 thank you my friend The additional information at SensorsIOT is very clearly laid out👍 Can I put in a request? I love the way you present the information graphically. Would you be able to do a video to show us how you go about making such images and graphs. ✌️
"you are tempting me to buy some ": You are teaching me English sentences I did not know! Concerning Graphics. I am just an ordinary business man. This is, why I use what I know best: Powerpoint and Excel...
Again a very good video ! Also interesting is the efficiency of power supplys, certainly if you gonna do a video about solarpower. What is the inputcurrent with no load and with variable load.
excuse me, if I have a motor hub kit for my bike with a controller of 72v 5,000watts, and if I am building up a battery pack of 72v and 5,000watts, plus the load of the controller. will it come to 70v or less when i connect the load_?
hallo Andreas, I would like to buy a DPS5005-C with the function to connect it to the computer. can you say what could come in connection with the producer?
Ok, dann doch in deutsch :) Ich wollte fragen, ob du schon sagen kannst was da kommen könnte? Da ich mir ein Labornetzteil aus einen DPS5005-C und 48V 5A Netzeil herstellen möchte.
Ich plane genau den DPS5005 mit Kommunikation zu testen... Und ein 48 volt Netzteil ist ebenfalls bestellt. Ich habe mir allerdings das etwas stärkere bestellt, weil die Chinesen teilweise nicht ehrlich mit den Specs sind (max Amperes) und der Preisunterschied relativ klein war...
Oh, da bin ich aber gepannt :) - Weißt du schon wann das Video circa kommt? Das Netzteil wollte ich in Deutschland kaufen, da die vom Preis nicht wirklich günstiger sind als bei AliExpress. Netzteil von Ebay (www.ebay.de/itm/Schaltnetzteil-5V-12V-24V-48V-Netzteil-Trafo-DIY-LED-Strip-Power-Supply-Frei-DHL-/132189957040?var=&hash=item1ec722abb0:m:mA-z3lhBsyQbwTBZcXbxgQg) Ich finde sämtliche Videos von dir klasse und verstehe auch alles, bloß selber ein englischen Satz zu formulieren fällt schwer, da ich so etwas nie mache.
+Gooie Nein. Ich muss die Teile erst bekommen und dann in die Liste einreihen. Leider liefern die meisten Ebay Lieferanten nicht ausserhalb der EU oder zu horrenden Preisen für die Verzollung. Aus China geht das lustigerweise viel einfacher.
Hello Sir Andreas this video is very useful and one thing what video should i start from? I'm a fresh graduate of bs. computer engineer and started working in Test engineering :) and still I need to learn more. THANKS!
If those test leads are the inexpensive stock ones there's no way they're 14AWG. They have extra thick insulation to handle high voltages. I've seen some of them as low as 26AWG. The only way you can confirm that a test lead is 20AWG is to make it yourself.
Those RDTech power supplies are great, I have 7 of them, including the new remote control version which is handy when used with at PC. RDtech's stuffs official store is rdtech.aliexpress.com if someone wants a direct link. RDTech's software is much better than those shown for your load. I'm guessing that is the version he is sending you. It is handy with Bluetooth or USB connection. The seller is a great guy too, very helpful and always easy to get ahold of. Shipping time is super fast as well and well protected as mine has come in a big styrofoam box with bubble wrap inside. I also have 4 of those electronic loads and they are great. The main reason to prefer them over others is the fan control! Thankfully someone was smart enough to have the fan be more than just ON/OFF like with ZKE Tech products and that initial smaller load you had shown. The one you showed by ZIHYU the zpb30a1 (i have v2.7) actually bases the fan speed on the temperature so it only spins as fast as is needed depending on your load value. Just make sure you get the model with the newer fan, it is much quieter than the original As with many fanned devices, adding a bit of space between the fan and heatsink and sealing the outside gap now created, can reduce noise even further without impacting your airflow negatively Speaking of on/off fan controls, if you get one of the RD Tech housings, don't wire the fan as suggested. Modify the circuit by using a transistor (or just connect directly) connected to the fan on the power board (the non all in one units, or ones with a fan, the better price/performance models) so the added external fan turns on only when the internal one does. Little less noise in the lab that way.
Sorry about that, just didn't want anyone to miss out due to an adblocker preventing them from seeing the link or being able to visit his store. I love his products and the value is great when you grab one of his DPS5015 and a 48v DC SMPS to make a low-cost bench power supply. SMPS that are 48V can usually be adjusted over 50v so you get voltage needed to get the entire 0v-50v range and @15A if you get a supply with enough power. The SMPS can also be mounted away from the main unit allowing for the bench portion to be tiny compared to alternatives and lower cost than many 0-30v @ 5A bench supplies that take up 5x more space (ie, Korad KA3005P which seems popular). I still don't get why everyone suggests using Banggood, everything there is overpriced vs. AliExpress, at least from what I've seen. Is it just due to the affiliate program? I'm also biased due to having nothing but bad experiences buying there even though I always paid extra for upgraded shipping. Items were always delayed, poorly built and a much bigger hassle to get things sorted out than aliexpress where sellers are eager to resolve things due to the way it is all setup. But if it helps the channel, I guess it is good in that way and people seem eager to pay a little extra shopping there. I have some more AliExpress shopping to do today (as always) so I'll follow your links. Do they work across the entire site once followed, or do you have a link that works across the entire site? Would love to give back.
I also have some other products from him and they are good. And I ordered a 10A/48volt PS as you describe. I hardly will use much more... The Aliexpress links are fairly new to me and I do not know how they work. They also should be cookie based. So, your purchases should trigger my reward when you start your session with one of the links. Thank you for your support because being UA-camr as I do is quite costly. But I hope, others can profit if I do the testing for hem...
Andreas Spiess a custom firmware is not only interesting because of the user interface design, dataloging or charge controlling and a lot of other ideas ... As you mentioned in you video the Chinese hardware design is quite good but the software... sorry most is crap and will not survive the next windows or linux update. I'm not using my nextion displays any more, because of the half backed software (fixed spacing fonts and many other issues) It would be nice if the Chinese Manufacturer give the software to open source or even the documentation not only copying open hardware designs. I.e. Sigrok makes the Chinese logic analyzers useful. My first look before buying hardware is if it is hackable The success of Espressif is based on the makers and open software / hardware community.
+Christian Meinert You are right. I think, one problem is the price pressure. If you know, that your software will be stolen in five minutes by your competitor, you probably do not invest a lot. The second problem I think is still the language issue. But open source and at least a decent documentation would be for sure a good strategy. BTW I was never successful with Sigrock and Windows.
Software development is expensive and keeping it up to date is even more expensive. Hardware for my home automation is normally done in a few hours but the software is never finished!
+Christian Meinert This is probably also because of our Asian friends. Building HW is also quite complicated, and creating chips even more. And all for a few cents. For me, this is nearly impossible. To manufacture a CPU with so many Transistors, and if an important one is defective, the whole thing does not work anymore... But obviously, they master this process. And in the West, we are still ahead with SW.
I just received my Maynuo M9712 DC Load about a month ago, its "exactly" the same as your unit for about US$440 from AliExpress. I can send the supplier link if anyone wants one from there, as I the first supplier replied "there were not any left in China"... well I got one from another supplier and fast! I also managed to get my hands on the isolated USB adaptor for US$40... wish I had access to your video before that purchase to make one myself... although the one I got works fine.
I think there are a few of these units under different brand names, I have not seen any bad reviews of the different variants. I am very glad to have it in my lab... already used it a few times and couldn't have done without it.... the PC connection/software is great.
Thanks for your feedback. I am sure, your input help others to decide.
Both your videos and EEVblog have help me equip my lab, providing great advice based on both of your vast experience. You are doing great work Andreas, keep it up!
:-)
I purchased a Maynuo M9712 300W load some time ago, it looks like a copy of the BK precision unit you showed, only price is closer to the one you purchased. AND you cover it later in the video... good stuff.
They seem all to be very similar internally...
at 5:55 it should be a voltmeter across the shunt resistor, it measures the current flowing across a known resistance using ohm's law by measuring the voltage across the known value of the shunt resistor
Theoretically, you are right. For me, a meter which measures Amperes is an Ampere Meter. Usually, you would name it on the panel in Amperes and would select the shunt that the reading really is Ampere...
@Andreas Spiess, I understand what you are saying, but to my mind you're wrong.
Please consider a noob-user watching your video; this user would switch a multimeter to measuring amps and connect it as you show. This will result in confusing readings compared to what the user expected.
That's why I agree with @nicktohzyu, either you show a voltmeter parallel to a shunt resistor OR only a amp-meter in series with "the circuit" (no shunt). That way you don't confuse inexperienced watchers :-)
You could put a box around the shunt and volt-meter and call the box an amp-meter.
In general I really like and appreciate your work and videos!!! But this is a mishap, that I think you should correct.
Ich freue mich auf Eure nächstes Video ;-)
I totally understand about the display Andreas, I love those blue fluorescent displays. I have an ancient second hand Fluke bench meter with a VFD and I love it.
So, we are already two ;-)
Yeah I bought such a power module dps3005 and a metal casing (all components were included but I connected the switch on the back differently to turn the fan on for high loads or off when on very small load) It's very handy and cheap for a lab power supply for a hobbyist! I run it from a laptop power brick which supplies around 19V only but can deliver several amps, and that's enough for most electronics that only require up to 12V.
+Geert Goossens I think, this is a good concept and a useful second life for a laptop power supply. I also have such an idea for the traveling Hobbyist, which anyway always has a Laptop with him.
Thank you for your share. As a Chinese, I am very happy to see this.
You are welcome! I work a lot with Chinese products...
Good summary of Ohms Law.
True.
Excellent video Andreas, you've convinced me, I need to invest and get myself a proper electronic load, it will save me the trouble of messing with the cheap ones. I was looking at these two for quite some time (Maynuo and Itech). Also having the multimeter grade display, saves you from using an additional two instruments..
I enjoy it so far. But, of course, it is only for people like you and me. Many others will be happy with the cheaper versions, if they do not use them too often.
Love your videos! Definitely underrated. Keep it up!!
Thanks!
Like i learned, many Year's ago: a German Phrase "wer misst, misst Mist!". And you show it everytime, how this is true.....
+Peter Meißner I had in my script, but at the end dropped it, because most of the viewers would not understand it. But is absolutely true!
Hi Andreas, good to see you again. :)
:-)
Good day Andreas and congrats on your new equipment! Nice video again; great explanations to help many makers understand better. Great work!
(Btw. you probably already know, but if you have multiple of those cheap 1A/2A Usb load-resistors, they can quite easily be converted to 1A/0.5A. See the video on my channel, which also refers to your comparison)
I saw it. But I do not use them anymore (I use the variable one). I was jus glad I still had i laying around to make the point here...
Is it necessary to buy electronic load for beginner.
Thank you
Depends on what you want to do...
I have that Maynuo load you mentioned. Specs are good but the manual is completely useless. The cryptic 14-segment VFD is pretty confusing without documentation.
Thank you for sharing your experience!
Another useful video but power supplies need to be tested for noise, transient response etc. if they are going to be used on a serious electronics bench. Some shots of your lovely scope and the new load switching between currents would have been nice.
+Mike Hudson You are right. I looked at the noise, but did not include it for this video as most of the viewers will use it to power digital circuits. The transient response is also important for some applications. I try to keep my videos between 10-20 minutes, so, this time, I omitted both.
I wonder if the "new version" of the DPS5005 is the one with included Bluetooth connection? I guess we will find out in a couple weeks.
+Jon Raymond Yes, it is
Great video. I like the analysis. The electronic load is a little pricey though. Maybe in the future you will find a cheaper load like the power supply and review.
Your work inspires me to put out some videos too. So far I have not but I think I will soon.
I will do a video about cheaper loads
Thanks. Your comparisons are quite good. Enough info to get a good idea but not over the top technical.
Actually I bought 2 types of radar boards based on your reviews. Still in the post so I have not tested them yet but you saved me a lot of guessing and reading a ton of sites.
:-)
Thank you for yet another informative video! I got interested in the DPS5005, so I checked the specs. It seems it's a voltage step-down device that takes up to 55 V and steps it down 50 V max. I guess you have another power supply feeding the DPS5005 around 40V DC, which in turn is connected to mains power 230 AC(?) So this spawns 2 questions: What power supply was that supplying the DPS5005, and what were you testing in this setup then? I think you were testing a power supply and a voltage step-down in conjunction. Ie, in this setup, can we always be certain that the last device in the chain (here the DPS) is at fault if we get "crappy" results? Sorry if this question is somewhat basic and badly formulated, I hope it's understandable :-)
For this test, I used my bench power supply and only at 12 volts. And you saw the performance of the bench power supply in one of the other tests: It is ok... So, I really tested the DPS5005.
For a proper setup, I would use a 48V constant voltage supply and connect the DPS5005 to hat. Then, you would get a decent PS for up to a little more than 40 volt.
The DPS5015 is better bang for the buck with 3x the power in my opinion. The only reason to use the DPS5005 is if you need the compact size or if you want the USB/Bluetooth computer controlled version of it. Pairing it with the proper sized low cost (but not low quality) SMPS is the way to go for a low-cost bench supply
Hello Andreas, first thank for all your knowledge sharing. I wish also to get a DC Load, I just want know if now do you have a updated verdict about the It8512A+? My second choice is the M9811, both are more or less at same price. The largest display on Itech seems also great for me, but still the software seem better on the Maynuo. After few months of usage do you think is still a good choice or you recommends another device in place ? Thanks again for your channel
The software is the bottleneck. And the Manynuo seems to have a Sigrok driver. I usually use it without SW so it does not hurt.
Andreas Spiess thanks Andreas, yes I also take a look of sigrok and other way to use remotely. Many github projects allow to use the Itech.
Morning Andreas. So I see you are tempting me to buy some serious electronic equipment 😀
Once again a subject that I had no proper understanding, but now hmmmm. Might have to be on my Xmas list.
Great presentation as always👍 thank you my friend
The additional information at SensorsIOT is very clearly laid out👍
Can I put in a request?
I love the way you present the information graphically. Would you be able to do a video to show us how you go about making such images and graphs.
✌️
"you are tempting me to buy some ": You are teaching me English sentences I did not know!
Concerning Graphics. I am just an ordinary business man. This is, why I use what I know best: Powerpoint and Excel...
Again a very good video ! Also interesting is the efficiency of power supplys, certainly if you gonna do a video about solarpower. What is the inputcurrent with no load and with variable load.
This time, the focus was more on the technology of measuring with electronic loads. For sure, efficiency will be an issue with solar power...
excuse me, if I have a motor hub kit for my bike with a controller of 72v 5,000watts, and if I am building up a battery pack of 72v and 5,000watts, plus the load of the controller. will it come to 70v or less when i connect the load_?
As long as your controller is capable to source the current needed by your motor it will deliver the voltage it is made for.
Gloves?
Yes. White.
Nice vid old man !
Thanks!
hallo Andreas,
I would like to buy a DPS5005-C with the function to connect it to the computer. can you say what could come in connection with the producer?
+Gooie Sorry, I do not understand your question
Ok, dann doch in deutsch :)
Ich wollte fragen, ob du schon sagen kannst was da kommen könnte? Da ich mir ein Labornetzteil aus einen DPS5005-C und 48V 5A Netzeil herstellen möchte.
Ich plane genau den DPS5005 mit Kommunikation zu testen... Und ein 48 volt Netzteil ist ebenfalls bestellt. Ich habe mir allerdings das etwas stärkere bestellt, weil die Chinesen teilweise nicht ehrlich mit den Specs sind (max Amperes) und der Preisunterschied relativ klein war...
Oh, da bin ich aber gepannt :) - Weißt du schon wann das Video circa kommt?
Das Netzteil wollte ich in Deutschland kaufen, da die vom Preis nicht wirklich günstiger sind als bei AliExpress. Netzteil von Ebay (www.ebay.de/itm/Schaltnetzteil-5V-12V-24V-48V-Netzteil-Trafo-DIY-LED-Strip-Power-Supply-Frei-DHL-/132189957040?var=&hash=item1ec722abb0:m:mA-z3lhBsyQbwTBZcXbxgQg)
Ich finde sämtliche Videos von dir klasse und verstehe auch alles, bloß selber ein englischen Satz zu formulieren fällt schwer, da ich so etwas nie mache.
+Gooie Nein. Ich muss die Teile erst bekommen und dann in die Liste einreihen. Leider liefern die meisten Ebay Lieferanten nicht ausserhalb der EU oder zu horrenden Preisen für die Verzollung. Aus China geht das lustigerweise viel einfacher.
Hello Sir Andreas this video is very useful and one thing what video should i start from?
I'm a fresh graduate of bs. computer engineer and started working in Test engineering :) and still I need to learn more.
THANKS!
There is no order in my videos. No start and (hopefully) no end. You decide.
Thanks a lot, very interesting!
:-)
If those test leads are the inexpensive stock ones there's no way they're 14AWG. They have extra thick insulation to handle high voltages. I've seen some of them as low as 26AWG. The only way you can confirm that a test lead is 20AWG is to make it yourself.
Good point!
Andreas, all in all, was the Itech Electronic Load a good investment?
Thanks.
Yes. For me it is ok. As I said, the SW is bad and the support also.
Thank you.
:-)
Those RDTech power supplies are great, I have 7 of them, including the new remote control version which is handy when used with at PC. RDtech's stuffs official store is rdtech.aliexpress.com if someone wants a direct link. RDTech's software is much better than those shown for your load. I'm guessing that is the version he is sending you. It is handy with Bluetooth or USB connection. The seller is a great guy too, very helpful and always easy to get ahold of. Shipping time is super fast as well and well protected as mine has come in a big styrofoam box with bubble wrap inside.
I also have 4 of those electronic loads and they are great. The main reason to prefer them over others is the fan control! Thankfully someone was smart enough to have the fan be more than just ON/OFF like with ZKE Tech products and that initial smaller load you had shown. The one you showed by ZIHYU the zpb30a1 (i have v2.7) actually bases the fan speed on the temperature so it only spins as fast as is needed depending on your load value. Just make sure you get the model with the newer fan, it is much quieter than the original As with many fanned devices, adding a bit of space between the fan and heatsink and sealing the outside gap now created, can reduce noise even further without impacting your airflow negatively
Speaking of on/off fan controls, if you get one of the RD Tech housings, don't wire the fan as suggested. Modify the circuit by using a transistor (or just connect directly) connected to the fan on the power board (the non all in one units, or ones with a fan, the better price/performance models) so the added external fan turns on only when the internal one does. Little less noise in the lab that way.
Thank you for your tips! My link directs also to rdtech, just with the possibility to support this channel.
Sorry about that, just didn't want anyone to miss out due to an adblocker preventing them from seeing the link or being able to visit his store. I love his products and the value is great when you grab one of his DPS5015 and a 48v DC SMPS to make a low-cost bench power supply. SMPS that are 48V can usually be adjusted over 50v so you get voltage needed to get the entire 0v-50v range and @15A if you get a supply with enough power. The SMPS can also be mounted away from the main unit allowing for the bench portion to be tiny compared to alternatives and lower cost than many 0-30v @ 5A bench supplies that take up 5x more space (ie, Korad KA3005P which seems popular).
I still don't get why everyone suggests using Banggood, everything there is overpriced vs. AliExpress, at least from what I've seen. Is it just due to the affiliate program? I'm also biased due to having nothing but bad experiences buying there even though I always paid extra for upgraded shipping. Items were always delayed, poorly built and a much bigger hassle to get things sorted out than aliexpress where sellers are eager to resolve things due to the way it is all setup. But if it helps the channel, I guess it is good in that way and people seem eager to pay a little extra shopping there.
I have some more AliExpress shopping to do today (as always) so I'll follow your links. Do they work across the entire site once followed, or do you have a link that works across the entire site? Would love to give back.
I also have some other products from him and they are good. And I ordered a 10A/48volt PS as you describe. I hardly will use much more...
The Aliexpress links are fairly new to me and I do not know how they work. They also should be cookie based. So, your purchases should trigger my reward when you start your session with one of the links. Thank you for your support because being UA-camr as I do is quite costly. But I hope, others can profit if I do the testing for hem...
There is an alternative firmware for the dps5005 available: johan.kanflo.com/hacking-the-dps5005/
Thanks for the link! Interesting. However, I was not unhappy with the user interface.
Andreas Spiess a custom firmware is not only interesting because of the user interface design, dataloging or charge controlling and a lot of other ideas ... As you mentioned in you video the Chinese hardware design is quite good but the software... sorry most is crap and will not survive the next windows or linux update. I'm not using my nextion displays any more, because of the half backed software (fixed spacing fonts and many other issues) It would be nice if the Chinese Manufacturer give the software to open source or even the documentation not only copying open hardware designs. I.e. Sigrok makes the Chinese logic analyzers useful. My first look before buying hardware is if it is hackable The success of Espressif is based on the makers and open software / hardware community.
+Christian Meinert You are right. I think, one problem is the price pressure. If you know, that your software will be stolen in five minutes by your competitor, you probably do not invest a lot. The second problem I think is still the language issue. But open source and at least a decent documentation would be for sure a good strategy.
BTW I was never successful with Sigrock and Windows.
Software development is expensive and keeping it up to date is even more expensive. Hardware for my home automation is normally done in a few hours but the software is never finished!
+Christian Meinert This is probably also because of our Asian friends. Building HW is also quite complicated, and creating chips even more. And all for a few cents. For me, this is nearly impossible. To manufacture a CPU with so many Transistors, and if an important one is defective, the whole thing does not work anymore... But obviously, they master this process. And in the West, we are still ahead with SW.
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