I've killed a few cheap ones, but i have one or two on the bench just in case. Thinking of building a FTDI based one to use with my ESP boards. They do a nice 4 channel one so you can program and debug at the same time 🙂

@@GnuReligion the problem with the mc34063 is the datasheet shows the lower input voltage limit as 3V. The TPS63802 it seems is built to run from a single lithium battery. As the battery voltage drops it switches from buck mode to boost seamlessly. So with luck the user should not notice the light dropping, I won't as its a camping light and I don't do sleeping in a tent unless it's got full onsuiet bathroom, tea or coffee. :-)

@@davidv1289 looks like I end to do some more design work, this is known as specification creap . You know something that the customer wants after they have excepted the quote. :-)

@@DaftOldMan best way to go

@@AJB2K3 can't beat a dead bug

@@davidv1289 I have not run it enough to see how long it will last. Looks likely that I'll have to do that for the final video. I hope you like,e the solution I went for in the next video.

Sounds fun, the answer could be in the soup.

i think your find the next one interesting, i hope 🙂

@@jluke6861 thanks

I've always preferred firmware to software, software is just something you run on a PC. Or something with an operating system. I.E a pi. but i will allow an RTOS as firmware 🙂

thank on popping on by and dropping a comment. Always look forward to a few mouse droppings. 🙂

@@TheEmbeddedHobbyist :) Lol !

@@DaftOldMan it just boils down to getting the one's and noughts the right away around. Glad you liked the lights

@@IanScottJohnston it was the potters wheel segment in my spiral lamp series. Hope you got a little break from your code :-)

So far I've been happy with it. but then I'm happy with anything that's still got lead in it. I do try and go for higher flux content if i can does help if your boards have been sitting around a bit.

Well thanks for trying to come up with a witty ditty anyway.

@@richardperritt I did wonder what it was as I thought of that, but could not think of why it was supplied with a monitor stand.

@@davidv1289 well the project is waiting for the new esp8266's to arrive must have ordered two much for the snail to carry :-)

Got to get the most out of it as the cost is mounting up. I still need a 5V 5A+ PSU to power the thing if i don't over do it. 10A if i turn all the LED's on ;-(

longest amount of muzak in this video to try and get Fred to notice. ;-)

glad it helped

Thanks David, I just thought that it would be better to keep joints as far apart as possible. As they don't flex the same at a joint. The code is how to bit bang the serial data stream on the ESP8266 hope you enjoy the next video.

AndyMouse is soaking up the rays and said he'll be back commenting when the winter sets in. Can't find a contact for Fred.

Still waiting for the washing up bottle so I can make a rocket. My mun wrote to Blue Peter to say "now they have done a show us how to make a wooden sleigh, could they now do a show on how to remove saw marks from kitchen tables" 🙂

it all in the wrist action and lots of kapton tape 🙂

freeCad is a bit like the Arduino IDE. it's happy to say you have a problem but then does it's best to hide the issue. I stopped using the Arduino IDE for that reason, but there are not many options for FreeCad. I agree that it needs an antenna even if just for show 🙂looking for a ESP8266 with external antenna now on AliExpress. so i expect it will get one in the end.

@@hamdiaskar9822 did you do the change the overvoltage trip mod? As if you just raised the output voltage any small spikes will trip it out. I did a video on how to increase the ov trip point.

@@TheEmbeddedHobbyist yes, I raised voltage to 13.6 volts and ovp too.

@@hamdiaskar9822 not sure on that then, are you pulling a lot of current ? We are taking them out of the range they were designed for so there could be differences between units. If the load is producing voltage spikes that could cause an issue. Then I did the first mod before the over voltage protection it did the same thing. Would just shut down randomly. You could try changing the value of the ov mod resistor to increase the trip point, maybe with component tolerances you could still be near the trip point. As no one has a circuit diagram of these psu's that i can find it's all just a bit hit and miss.

@@TheEmbeddedHobbyist no, for stability testing I use a 60 watts halogen bulb, 5 amperes current. I’ll try to find the reason of my problem, maybe try short the optocouplers (I saw 5 of them in the logic board) Optocouplers modification always successful to alter ovp and other protection on ATX PSU, maybe I’ll try on this HP server PSU and hope a good result too.

@@hamdiaskar9822 if you find a fix please let us know incase it helps others. It's hard without circuit diagrams to get it right for everyone. But with a global effort we might find the answer. Fingers crossed its not 42 :-)

@@DaftOldMan it does look good in colour, as you will find out in future videos

I hope so as my wife says I'm always keep her in the dark about things 😅

slowly working on it. having fun re-inventing the wheel software wise. i know that a software down load like WLed will be the easy route, but first you have to try yourself or you learn nothing. Thanks for the comments it means a lot that folk take the time to respond to my videos.

Have you tried a Mag mount on a modern car! My Volvo has a roof a little bit thicker than tinfoil. 😞 I had to get a roof rack and then bridge the two with aluminium angle to mount a 2m/70cm colinear. Thanks for the comment, I hope your will like the rest of the project.

@@TheEmbeddedHobbyist I have a couple of old CB radios somewhere in the loft. One is a modified Ham International ( I can't remember the model). It has high and low bands. Had great fun with this radio back in the day. Oh I just remembered, it's a Concorde-II.

@@daveodessa I think I had a few Midland am radios, it was fun when it was illegal. when they made it legal in the UK it just became id hate to say a bit boring. But by then I'd become a Ham or cured cb'er :-)

The modification works by changing the ratio of the voltage setting pot. This means the output voltage has to increase to give the correct feedback value. the other video's show what else needs to be done if you need to get to 13.8V or so without the overvoltage trip to kick in. Again be careful these PSU's can kill if you touch the tracks with power on or have not given it long enough time for the caps to fully discharge.

@@TheEmbeddedHobbyist I've managed to get 13.75v with a 22k resistor

@@ranetti21 this could be caused by tolerances in the components etc. but once you get near to around 13.8V you might need to do the overvoltage mod as well. there is a video for that as well.

@@DigicoolThings I've got a valve radio and record player which needs restoring, so this and two back to back transformers will give me variable and isolated mains supply.

thanks' for that, I remember to check it out when I get to see what the pinout is on the back.

wanted one for ages, but the China ones are too expensive for the effort I'd expect to have to put in to making it as safe as a Variac can be 🙂

Not sure there, but you could use it in place of a resistor to control the discharge to ground of a timing capacitor.

Used current mirrors in the past but with dual transistors, where they are matched and on the same die so don't suffer from temperature differences as you do with using two separate ones. But a fun little circuit to add to the kit.

@@TheEmbeddedHobbyist It is an interesting little circuit and one I'm adding to my book with credit to you!

@@AJB2K3 great to hear that Adam.

Thanks Andy. glad you found it interesting. there is an a error in the video I'm not sure if I should wait to see if anybody does the calculations and spots it or own up and put it in the description. :-)

@@TheEmbeddedHobbyist I don't do the sum's when watching so if it's a decimal point wrong or something of that nature I wont catch it, but it was a great refresher all the same so Squeaktastic !!

I'd love to say it was was my own code, but while I was working on my own Rs232 driver for the HP34401A I came across this which was created by Niravk patel It still throws the odd error on the meter but not as many as I was. I could not get the refresh as fast as he does. It was on the EEVblog forum. github.com/Niravk1997/HP-Agilent-Keysight-34401A-Control-and-Data-Logging-Software Forgot to say the perf board was cut on my K40 laser, the board mounts on my Ender 3, and the components out of my odds and sods bins.

Makes the connector a lot safer. But I've replaced the board with one i made myself so i can run it from lightburn.

I've used the Meanwell power supplies for commercial products and they have never caused an issue with passing the standards for safety and emissions required for CE marking. And you get quite a bang for your buck, no worries about if it will try and kill you after being fitted like a lot from china.:-0

@@TheEmbeddedHobbyist Yep. A long time ago, after a bad experience, I learned that any mains powered device that says "made in China", must be opened first to check the quality of the earthing is sufficient for safe power-on. I've had a number of devices that have required a bit of remedial work first... for peace of mind at the very least. 🤓

@@DigicoolThings A lot of the time the transformers are not even close to being legal in the UK. the only insulation between the primary and the secondary is twice the enamel thickness. Having spent over £1M getting products through CE marking you get use to rejecting components just by looking at the datasheets. did see two manufactures with different looking PSU's but having the exactly the same RF emission spectrum. I've never seen two runs on the same kit at the same time look the same. 🙂

the sound of seeing a cap for the first time.

Thanks Dustin, it seems like ages when we watched your channel pass the 1K. slowly building the channel one sub at a time.

@@TheEmbeddedHobbyist I know the feeling, but keep doing what you are doing. You can use tools to get more subs and views, but in the end if you like what you do, people will find you. And honestly, I rather have 1K subs that are mostly all engaged, than 10K that bare watch your videos. The first ones are much more worth!

@@DustinWatts I just hate youTube when the sub counter goes up and down by 1, 3 or 4 times a day for a week. But it's all fun in the end. 🙂

Glad somebody else liked the cap's Adam, went down like a limp fish for Fred.

4 reels flintstone, that's a good new nickname. even Dave not from Odessa thought you would like the cap's. look like we both got it wrong. maybe Mr squeak will be along to have a say. 🙂

I'm so disappointed that Fred was not impressed. I think I''ll take to the drink.@@TheEmbeddedHobbyist

@@daveodessa have a few for me then Dave. 🙂

He only likes electrolytic caps… ask me how I know.

@@TheDefpom I wonder why lol.

Should have put some muzac and cheese in to attract the usual suspects.

i tend to build a wish list then buy when I've crossed the free postage limit.

Isn't it free over £20?

@@sdgelectronics yep, it's got the lowest free post break point of all the usual distributor's. Even the same parts are cheaper than they are from Farnell which is in the same group. They are my normal go to for parts, for the others I need to build a bigger whish list. the problem comes when one don't stock all i need. 😞

Well thanks Mr Squeak, wonder where Fred is? He must be in hiding 🙂

@@TheEmbeddedHobbyist Yeah he's usually in first, probably having some Tea!!

@@andymouse I even put in some lift muzak for him. 🙂

@@TheEmbeddedHobbyist :)