Howdy all ! think I should start at the beginning ! Squeak TEH !!...Edit: Comet looks awesome !
@TheEmbeddedHobbyist12 сағат бұрын
thank on popping on by and dropping a comment. Always look forward to a few mouse droppings. 🙂
@andymouse9 сағат бұрын
@@TheEmbeddedHobbyist :) Lol !
@DaftOldMan21 сағат бұрын
I will just have to watch the pretty lights. The coding is beyond my understanding.
@TheEmbeddedHobbyist19 сағат бұрын
@@DaftOldMan it just boils down to getting the one's and noughts the right away around. Glad you liked the lights
@IanScottJohnstonКүн бұрын
So here I am busy coding my Energy Control app and I thought I'd take a break........to find TEH coding...LOL!
@TheEmbeddedHobbyistКүн бұрын
@@IanScottJohnston it was the potters wheel segment in my spiral lamp series. Hope you got a little break from your code :-)
@Alex-M0OOV8 күн бұрын
Hi, are you happy with the Multicore/Loctite 309 60EN? Im considering it, but also looking at an AIM 63/37 solder. Cheers!
@TheEmbeddedHobbyist8 күн бұрын
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.
@AJB2K38 күн бұрын
I can't think of a single witty pun to make about the contents of this mailbag.
@TheEmbeddedHobbyist8 күн бұрын
Well thanks for trying to come up with a witty ditty anyway.
@richardperritt8 күн бұрын
3D print a new knob. Unknown piece is the bracket that holds the tablet. The bottom of the tablet goes in the notches to prevent it slipping.
@TheEmbeddedHobbyist8 күн бұрын
@@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.
@davidv128911 күн бұрын
I was going to say that this project is coming along nicely, but I see Dave Odessa has beaten me to it! Well, it is and I'm looking forward to seeing it in operation. And the antenna poking up the middle is still brilliant. Regards, David
@TheEmbeddedHobbyist10 күн бұрын
@@davidv1289 well the project is waiting for the new esp8266's to arrive must have ordered two much for the snail to carry :-)
@daveodessa14 күн бұрын
The project is coming along nicely. Great stuff TEH.
@TheEmbeddedHobbyist14 күн бұрын
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 ;-(
@AJB2K315 күн бұрын
Don't get any splinters scratching your head!
@TheEmbeddedHobbyist15 күн бұрын
longest amount of muzak in this video to try and get Fred to notice. ;-)
@nickstanley506416 күн бұрын
Thanks for the video. I wanted to send some commands via RS232 to enable some hidden menu items and your video helped me greatly with that.
@TheEmbeddedHobbyist16 күн бұрын
glad it helped
@davidv128921 күн бұрын
I had wondered why you didn't just insert one in place of the bad one. Then I realized it would be two solder joints close together - just before you explained it! I haven't played with these programmable LEDs so I'm looking forward to the code bit. Regards, David
@TheEmbeddedHobbyist21 күн бұрын
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.
@AJB2K322 күн бұрын
Where is @Andymouse and @FredFlintstone?
@TheEmbeddedHobbyist22 күн бұрын
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.
@AJB2K322 күн бұрын
In the words or a Blue Peter Presenter "Here's one I prepared earlier!"
@TheEmbeddedHobbyist22 күн бұрын
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" 🙂
@DaftOldMan22 күн бұрын
I find it impossible to keep strings of white leds working so yours would be 4 times the problem for me.😁
@TheEmbeddedHobbyist22 күн бұрын
it all in the wrist action and lots of kapton tape 🙂
@davidv128927 күн бұрын
More spiral goodness. I wish FreeCAD would just tell you which constraint it is upset with - life would be so much easier. It definitely needs an antenna in the center.😊 Regards, David
@TheEmbeddedHobbyist27 күн бұрын
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.
@hamdiaskar9822Ай бұрын
My HSTNS-PD29 shut down after few minutes, unplug the ac cable and on again, but after a few minutes it will shut down again, and 3 of 4 units here have the same symptoms. What should I do?
@TheEmbeddedHobbyistАй бұрын
@@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.
@hamdiaskar9822Ай бұрын
@@TheEmbeddedHobbyist yes, I raised voltage to 13.6 volts and ovp too.
@TheEmbeddedHobbyistАй бұрын
@@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.
@hamdiaskar9822Ай бұрын
@@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.
@TheEmbeddedHobbyistАй бұрын
@@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 :-)
@DaftOldManАй бұрын
It will look even more like a DNA spiral with colours.
@TheEmbeddedHobbyistАй бұрын
@@DaftOldMan it does look good in colour, as you will find out in future videos
@AJB2K3Ай бұрын
Hopefully this project will be illuminating!
@TheEmbeddedHobbyistАй бұрын
I hope so as my wife says I'm always keep her in the dark about things 😅
@davidv1289Ай бұрын
An interesting project. I'm looking forward to seeing how it turns out. Regards, David
@TheEmbeddedHobbyistАй бұрын
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.
@daveodessaАй бұрын
Maybe use could use the old base to make a new base for a DV27 and get you back on the CB, just like the old days🍺.
@TheEmbeddedHobbyistАй бұрын
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.
@daveodessaАй бұрын
@@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.
@TheEmbeddedHobbyistАй бұрын
@@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 :-)
@ranetti21Ай бұрын
I don't understand, the 24k resistor gets connected to adjustment?
@TheEmbeddedHobbyistАй бұрын
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.
@ranetti21Ай бұрын
@@TheEmbeddedHobbyist I've managed to get 13.75v with a 22k resistor
@TheEmbeddedHobbyistАй бұрын
@@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.
@DigicoolThingsАй бұрын
Nice Variac! That brings back memories... as I don't have or need one, these days. The 36 Amp fuse was an eye opener! 😳🤓
@TheEmbeddedHobbyistАй бұрын
@@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.
@pileofstuffАй бұрын
That power supply looks very much like a telecom device. If it is, the DC will likely be positive ground.
@TheEmbeddedHobbyistАй бұрын
thanks' for that, I remember to check it out when I get to see what the pinout is on the back.
@AnotherMakerАй бұрын
I love that variac. So cool!
@TheEmbeddedHobbyistАй бұрын
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 🙂
@AJB2K33 ай бұрын
Its almost an astable multivibrator
@TheEmbeddedHobbyist3 ай бұрын
Not sure there, but you could use it in place of a resistor to control the discharge to ground of a timing capacitor.
@AJB2K33 ай бұрын
How on earth did you discover this?
@TheEmbeddedHobbyist3 ай бұрын
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.
@AJB2K33 ай бұрын
@@TheEmbeddedHobbyist It is an interesting little circuit and one I'm adding to my book with credit to you!
@TheEmbeddedHobbyist3 ай бұрын
@@AJB2K3 great to hear that Adam.
@andymouse3 ай бұрын
Nice little demo ! interesting what you said about resistors, I had never thought of it like that. Very interesting all around......Squeak!............cheers.
@TheEmbeddedHobbyist3 ай бұрын
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. :-)
@andymouse3 ай бұрын
@@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 !!
@IanScottJohnston3 ай бұрын
Love the home designed perf board components. What are you using for the on-screen DMM readouts?
@TheEmbeddedHobbyist3 ай бұрын
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.
@MileyonDisney3 ай бұрын
That's hilarious! But brilliant! I'll be doing that tomorrow!
@TheEmbeddedHobbyist3 ай бұрын
Makes the connector a lot safer. But I've replaced the board with one i made myself so i can run it from lightburn.
@DigicoolThings4 ай бұрын
Awesome. Those Meanwell PSU modules are always a good buy. Relatively good quality for a reasonable price.
@TheEmbeddedHobbyist4 ай бұрын
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
@DigicoolThings4 ай бұрын
@@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. 🤓
@TheEmbeddedHobbyist4 ай бұрын
@@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. 🙂
@TheDefpom4 ай бұрын
@0:40 yay!
@TheEmbeddedHobbyist4 ай бұрын
the sound of seeing a cap for the first time.
@DustinWatts4 ай бұрын
Postbag.. can't have too many of those! :D And I just saw you've crossed the 1K mark. My sincere congratulations! 🥳
@TheEmbeddedHobbyist4 ай бұрын
Thanks Dustin, it seems like ages when we watched your channel pass the 1K. slowly building the channel one sub at a time.
@DustinWatts4 ай бұрын
@@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!
@TheEmbeddedHobbyist4 ай бұрын
@@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. 🙂
@AJB2K34 ай бұрын
Yay, Capacitors !
@TheEmbeddedHobbyist4 ай бұрын
Glad somebody else liked the cap's Adam, went down like a limp fish for Fred.
@fredflintstone14 ай бұрын
Damn I thought this would be an interesting Post bag, but SMS capacitors do nothing for me, as for the solder I got mine ages ago infact I have 4 reels and it wasn't expensive then, you need to think further ahead and save money ;-) 🙂
@TheEmbeddedHobbyist4 ай бұрын
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. 🙂
@daveodessa4 ай бұрын
I'm so disappointed that Fred was not impressed. I think I''ll take to the drink.@@TheEmbeddedHobbyist
@TheEmbeddedHobbyist4 ай бұрын
@@daveodessa have a few for me then Dave. 🙂
@TheDefpom4 ай бұрын
He only likes electrolytic caps… ask me how I know.
@daveodessa4 ай бұрын
@@TheDefpom I wonder why lol.
@daveodessa4 ай бұрын
Fred will be impressed with the caps. Cheers TEH.
@TheEmbeddedHobbyist4 ай бұрын
Should have put some muzac and cheese in to attract the usual suspects.
@DaftOldMan4 ай бұрын
I don't buy from CPC. Delivery price is way too high.
@TheEmbeddedHobbyist4 ай бұрын
i tend to build a wish list then buy when I've crossed the free postage limit.
@sdgelectronics4 ай бұрын
Isn't it free over £20?
@TheEmbeddedHobbyist4 ай бұрын
@@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. 😞
@andymouse4 ай бұрын
Nice one ! ....Cheers !!!
@TheEmbeddedHobbyist4 ай бұрын
Well thanks Mr Squeak, wonder where Fred is? He must be in hiding 🙂
@andymouse4 ай бұрын
@@TheEmbeddedHobbyist Yeah he's usually in first, probably having some Tea!!
@TheEmbeddedHobbyist4 ай бұрын
@@andymouse I even put in some lift muzak for him. 🙂
@andymouse4 ай бұрын
@@TheEmbeddedHobbyist :)
@AJB2K34 ай бұрын
That's a shocking bit of design.
@TheEmbeddedHobbyist4 ай бұрын
you're right, but at least it's back up and sounding great again.
@AJB2K34 ай бұрын
@@TheEmbeddedHobbyist Well, that's music to my ears.
@TheEmbeddedHobbyist4 ай бұрын
@@AJB2K3 it's not just the music it's the chest thumping bass that i missed. The sub did a fantastic job on rumbles and bang.
@AJB2K34 ай бұрын
@@TheEmbeddedHobbyist it’s all about the base!
@TheEmbeddedHobbyist4 ай бұрын
@@AJB2K3 never understand why they named the low notes after a fish.
@davidv12894 ай бұрын
That's an interesting board layout! I can't think of a reason why anyone would do that, especially with so much room in that area of the board. Thank you for showing us that unique design. Regards, David
@TheEmbeddedHobbyist4 ай бұрын
The board is a multilayer and there are caps that just sit on pads connected by via's along with other components as well. So no way of following a connection. When looking for the short it was impossible to work out where any tracks went as none are visible. Not made to be easily repaired. Along with cans that can't be replaced if removed?
@davidv12894 ай бұрын
@@TheEmbeddedHobbyist Bugger! Still a bad idea to put a via that close to a solder pad.
@daveodessa4 ай бұрын
That was a real bugger, well done for fixing it. A trap for the young players.
@TheEmbeddedHobbyist4 ай бұрын
thanks Dave, not sure how i would replace it.
@andymouse4 ай бұрын
Squeak !!
@daveodessa4 ай бұрын
@@andymouse Cheese
@DaftOldMan4 ай бұрын
Designers don't care about bad design because they never have to fix anything.
@TheEmbeddedHobbyist4 ай бұрын
Most of my projects had a use life of 25 years, so had to be easy to fix. :-(
@IanScottJohnston4 ай бұрын
Bad layout design for sure.....dear oh dear!
@TheEmbeddedHobbyist4 ай бұрын
it was that old assume that bit my bum. i assumed that as they were so close they must be connected. Assume makes an Ass out of u and me.
@gtube23064 ай бұрын
It's a hall switch making the unit you dismanled a flow switch, which the circuit uses to detect the motor is pumping.
@TheEmbeddedHobbyist4 ай бұрын
Indeed that's what it looks like, seems like it didn't like the hard water we have here. Just a shame the bearings didn't hold up to a few years of intermittent operation.
@andymouse4 ай бұрын
Awesome !........squeakycheers. !!!
@TheEmbeddedHobbyist4 ай бұрын
Well thanks 😊 for popping on by Mr Squeak.
@davidv12894 ай бұрын
Ye gods, 300 quid! For that price you would expect some quality bearings. I had to Google "shower pump" to find out what it is used for - homes with low supply pressure. I assume the crossover tube prevents pump damage if just the hot or cold tap is opened? Thanks for showing its guts to us. Regards, David
@TheEmbeddedHobbyist4 ай бұрын
Our water is tank fed from the loft which is normal in the UK, so never much pressure for the shower head which is only a few feet lower than the tank. If it had been a £10 pump it would have been thrown in the bin and no video made, but I thought it was worth it for an expensive one.
@TheDefpom4 ай бұрын
Slap some new bearings in it and it will probably be all good again, alignment has shifted because of the bearings getting loose, well apart from that seal which broke... damn.
@TheEmbeddedHobbyist4 ай бұрын
I think the rotors were well past there prime, been running ruff for far to long. the tolerances are so close on these that a doggy bearing just takes them out. Just got to hope the replacement lasts a lot longer, went for the same pump again as it's far easer to fit just 4 pipes already in the correct place and length. Was hoping it would turn out to be just a capacitor 🙂
@AJB2K34 ай бұрын
You need a gear/bearing puller or a wood brace and a hammer to release it.
@TheEmbeddedHobbyist4 ай бұрын
In the end they went hand in hand to the local recycling centre.
@AJB2K34 ай бұрын
Is this a shower pump? We don't have a pump on our shower.
@TheEmbeddedHobbyist4 ай бұрын
it was fitted about 4 years ago when we had the family bathroom redone and the bubble bath replaced with a walking shower. So with two showers the gravity fed hot and cold water could not cope. So Plummer fitted the pump, its meant to have a 5 year guarantee. but they put so many loops to jump through that i gave up and just bought a new one for £300. 😞
@DaftOldMan4 ай бұрын
Nice. The moving magnet is often used with a hall effect sensor to switch on and off water pumps based on water flow demand.
@TheEmbeddedHobbyist4 ай бұрын
In the end the hot water flow would not set the pump running. So it had to be replaced new one is nice and quiet, well as quiet as a pump can be.