Oh my god Dave discovering that two of the servos are connected to the gyros was just amazing. I instantly had to think of the cat coming closer when not looking. Dave looks at the servos, they do nothing, he starts talking and gesticulating, they move, he stares at them, silence. Hmmmm. Starts talking again, they move. He stares at them, they stop. "I guess, I, huh? Ohh, OOOH! Tilt!"
My friend from croatia actually shipped one of the earliest units out to me when she saw it, was right up my street and built it that very hour. Great thing and so useful that you added the I2C headers and the like, makes it great for more than just gaming and also for bus sniffing/testing!
With regards to Sagan soldering, my uncle Ray showed me how to solder when I was 7 back in 1980. I still have the board and it's a really blobby mess. Later, he showed me how to do it properly and not use so much solder on the joints. He had a junk board with a card edge connector he had me do this with. All I was doing was soldering pieces of bus wire into the holes on the PCB, but I spent hours doing it because I was so enthusiastic by the whole process. Even if Sagan didn't make something functional, he could make a peice of art, and you can keep it and show him later when he gets older.
I had my kids soldering at about the same age, and I've taught a number of other kids to solder. Every time I've been surprised at how good they are at it with a bit of coaching, once they get over their fear of the hot end - even kids with poor handwriting skills seem to do okay. A good lightweight temperature controlled iron helps a lot, and their young eyesight and lack of caffeine makes up for the rest! Modern PCBs with quality solder masks are very forgiving. They get pretty excited when their circuit works. One thing I found to be useful is to give them a "mantra" or rhythm... "iron on, one, two, solder, one, two, iron off" . I'm also explaining to them that the iron needs to heat the pad and the lead at the same time, and I show them what a good joint looks like - and that we're trying to avoid blobby cold joints . We might have to redo a few initially, but they get it very quickly.
Hmmm. Donno. For the mains detection or survaillance i'd just go with a 240V=> 5V transformer. Proper isolation, and with a voltage divider you get frequency and voltage to directly do stuff with AD pins. ..And whilst you're there you can also use it as power supply..
Well.. depends how exact you need to know. Of course you would have to measure before full bridge rectifier, regulator and stuff, but for "no load" operation you could always stop heavy cpu load. For Frequency and "is it around 230V" the voltage before rectifier and with a normally oversized (private project) transfomer would not really drop that much. If you really need an idle running transformer, then use a switching power supply for your load, or better AC surveillance hardware ;-)
Did you pick up on the fact that the silk screen for the pin header on Austin's AC monitor matched the output lugs, pin-for-pin according to his printed sheet?
Mailbaaag - :-) Happy easter - I'm glad that it's vacation time, and I don't have to feel bad enjoying another segment of Dave's fun - whilst skipping out on my own work. Keep up the good work!
The 'big button' on the DualShock4 is actually a touch pad, its a really awesome feature for use with a PC (on the PS4 the game has to be programed for it).
Hi, I am the guy who sent you the blinkenrocket kit. Thanks for showing it! I actually soldered the EASY version of the kit with my daughter. This is only the matrix, the coin cell holder , two buttons and the audio jack. No SMD components. I think 6 is a little early to handle those tiny parts with scissors while melting metal.. But i DID solder the NORMAL version, with all SMD components, last week with a friends kid who is 9.
Pliers! :) sorry, english is not my first language. But speaking of scissors.. i built a machine to help assemble the blinkenrocket kits that uses scissors. check it out here th-cam.com/video/rFaoaCJ1R8o/w-d-xo.html
Am i the only one noticing the safety spacing on the PSM400A from Austin's Circuits is completely missing? The "long" footprint for the resistors come VERY close to the bottom right block of resistors which is connected to the low voltage side. FAIL!
I was doing PCB layout when you had to do it 4 times full size with tape and stick-on pads. Because I was used to working on the track side of pcb's I knew most of the common clips pinouts from underneath and not the way the data sheet shows which was very useful when doing layouts. We had a huge wooden camera on rails to take the photo of the artwork which was on a light box 6 foot square at one end.
OCD alert: There was a protective plastic membrane on the LCD of the game console. Also, the PCB has the button names silk-screened on the front. Glad to see a new mailbag!
Don't talk to me about postage. A viewer on my channel shipped up a SVHS VCR to repair from USA to me in Canada. Cost him 86.00 yanky bucks to ship it to me, and 59 Loonies to ship it back after it was repaired. More in shipping than the repair cost.
What about the Radioshack dry etch transfers or the Bishop Graphics layout tapes, or Kepro circuit systems products? The Heathkit store sold a few of these vintage pc design items.
Hi Ref. the mains monitor . I did something similar about 25 years ago so that we could know when a mains phase ( or phases ) failed and for how long . I wired the opto's outputs up to the printer port of an old double floppy drive laptop and powered it from a 12v lead acid battery which was being trickle charged by the mains . The screen showed events as they happened and the second floppy stored all events . A windy weekend could record lots of glitches etc . The researchers now knew how long their experiments ran before a mains failure etc happened . As you say --- of very limited use . I only built the one and I did not bother with a PCB , I just used veroboard . GW Basic running on Dos was fast enough to capture glitches . The 4 terminal shorting plug -- just use longer screws and put nuts under the plugs to make the plugs longer . Alan
Great mailbag Dave :D I like the Playbuino kit, shame i didn't hear the sounds, those good old 80's 8 bit bleeps!. I would put some smd LEDS around the display so you can play it in a dark room, but that's one of those things you just have to experiment with i guess. Rock on! And the playstation servo control also a great idea!
Hey Dave, you forgot to mention that Protel was an Australian, Tasmanian creation. The MID400 if you look at page 6 of the Fairchild datasheet, you will see the output is as quoted, "Line Monitor". Its output does not switch HIGH/LOW with the AC waveform, but HIGH to LOW on the detection of AC input. It unfortunately cannot be used as a zero crossing detector. I used to work in a factory with 8085 based control system, KELLER/Cellatronics, a German company, and it was purely 240Vac control system, no 24Vdc control supplies. Their input optos were a HP version of the MID400.
Wow He sent you a PS4 controller I know thats not the most expensive thing someone has sent but still ~$65. Its actually a useful tool to have in the shop as its bluetooth so it can sync to a lot of things including PC and android.
There is a error in the code for those servos. It is reading as value=1 when you press the button and it is just sending that to the servo. So it moves one "step", could be that there is min/max values for them somewhere.. Or it is just value that is sent as is, like the analog stick.
Attila Asztalos Download / Clone is very different from committing to a repo. I know is not rocket science but some people choose not to learn revision control because they don't deal with software on a daily basis.
Constructive Bytes and? Most people don't need to commit, they're just going to click download like they would anywhere else, no extra complication.BUT those who know can use source control and submit fixes.
kilrahvp I guess people can't read nowadays Tim Savage was talking about publishing that means uploading a project to git. That's what this conversation is all about, not people who download code.
That little hand-held game machine... You could do a better set of games on an old TI-85. You can snag those for about $10 now, and also have a graphing calculator. My favorite Ti-85 program was the serial terminal. Very useful.
Hi, Dave! Since you have all those servos, maybe you could write a simple code to make them all repeatedly turn left-right by, say, 45deg and show us how much drift with temperature they have. I've bought two (probably fake ones) marked 'Tower pro SG90' and they show cca. 3deg/degC drift. They contain AA51880 servo controller IC. The chip gets hot when turning the motor and within a minute, neutral position is off by 90deg.
Oh! Now I know what a second suck of the sav is!! A sav is a battered Saveloy sausage!! Thanks Dave. Here in the old dart in London we've got a sort of greeting that goes " Oi Oi Saveloy!! " :)
The whole point of the 4-wire short is to have zero volt on the sense wire. You achieve that by shorting them. To make sure the meter doesn't complain, you short the input side as well and connect it to the sense side. But having both sides of the input connected to the sense would be a mistake, since you want zero volt on your sense wires. The actual implementation is thus the only correct one.
Yes the S&H. Would love to purchase the latest multi meter but shipping + import duties .... tough sell. An ex coworker of mine bought the previous version. He had to go to customs to pay the fee, explain why the manual is not in German and explain that it is not a dangerous device .... was nice to hold it for a few minutes :)
I’ve bought things from “mighty car mods” and it cost a shit load to buy and then when it turned up I had to go to the post office to pay even more for shipping! I (like most people) have bought things from China, Japan, Taiwan, etc and I’ve NEVER had to pay for anything like that. That 4 terminal shunt, I personally would of covered both sides with a very thick trace to get the lowest resistance as possible
For that first one, the guy has programmed the servo connection for you, thats pretty good. I could do the whole thing myself, except the cool thing is it works with the playstation controller, so i could actually go get it myself and get the cool controller with it! not bad.
I’ve got a PlayStation controller that seems like the left direction button is permanently pressed but I’ve had it all apart and can’t seem to see anything obvious and I can’t fix it. Any ideas?
that time frame is cool, also i have to say i think that with the larger smt packages and good clean surfaces and good solder- that there are time when assembling smt boards are quicker than through hole equivalents (in terms of keeping components in place its so much easier for smt to tab everything down quickly to get near all the components flat, then do the other side 'properly' then tidy up the first side if its ugly. with low thermal mass you dont have to think too much about order of component soldering for the board and heavy copper or contacts absorbing heat and no faffing with component leg bending to stay in place or otherwise time spent with glues or tapes or foam/sponge etc) long story short, with a good pair of fine tweezers, good eyes, good solder and clean surface/pads i find smt work quicker than through hole, while my eyes can still see that is..;/
Don't underestimate what can be done with some practice.. One of my colleagues has got good at replacing these by hand with a bench magnifier and hot-air re-flow pencil: e2e.ti.com/blogs_/b/powerhouse/archive/2016/06/27/turning-sand-into-gold?keyMatch=femtofets&tisearch=Search-EN-Everything To see them properly, the microscope shows that solder paste is really made with solder balls!
Good idea for that Austins project. Arduino shield would have maybe been a better idea. Most electronics hobbyists nowadays have an Arduino or equivalent development interface board in their collection. Maybe this is a prototype?? Also couldn't see open source hardware logo. Maybe a better idea to somehow monitor AC waveform on the line for data analysis.
I have sent you a calculator a few months ago from Portugal. The package went from one side of the planet to the other and I've paid less than 4€ for shipping. It took 2 or 3 months to get there probabilly, but it was dirt cheap. It was cheap because it was way light. From 500g the prices start to climb and climb and climb a lot!!!
Oh my god Dave discovering that two of the servos are connected to the gyros was just amazing.
I instantly had to think of the cat coming closer when not looking. Dave looks at the servos, they do nothing, he starts talking and gesticulating, they move, he stares at them, silence. Hmmmm. Starts talking again, they move. He stares at them, they stop. "I guess, I, huh? Ohh, OOOH! Tilt!"
Mad me laugh :D
They move by magic!
I was shouting at the screen for that one : )
hahha it was really funny
Thank you so much for unboxing and showing MAKERbuino in this episode of mailbag!
xoxo love from Croatia :)
- the MAKERbuino team
so awesome
My friend from croatia actually shipped one of the earliest units out to me when she saw it, was right up my street and built it that very hour. Great thing and so useful that you added the I2C headers and the like, makes it great for more than just gaming and also for bus sniffing/testing!
Wow, thank you for the kind words, we're really glad that you liked the device (and that it worked since early models had quite some design flaws :))
Hopefully that Siglent tea set doesn't come with the trademark rust along the edges.
The servo ps4 shield is awesome! Neat idea!
With regards to Sagan soldering, my uncle Ray showed me how to solder when I was 7 back in 1980. I still have the board and it's a really blobby mess. Later, he showed me how to do it properly and not use so much solder on the joints. He had a junk board with a card edge connector he had me do this with. All I was doing was soldering pieces of bus wire into the holes on the PCB, but I spent hours doing it because I was so enthusiastic by the whole process. Even if Sagan didn't make something functional, he could make a peice of art, and you can keep it and show him later when he gets older.
I had my kids soldering at about the same age, and I've taught a number of other kids to solder. Every time I've been surprised at how good they are at it with a bit of coaching, once they get over their fear of the hot end - even kids with poor handwriting skills seem to do okay. A good lightweight temperature controlled iron helps a lot, and their young eyesight and lack of caffeine makes up for the rest! Modern PCBs with quality solder masks are very forgiving. They get pretty excited when their circuit works. One thing I found to be useful is to give them a "mantra" or rhythm... "iron on, one, two, solder, one, two, iron off" . I'm also explaining to them that the iron needs to heat the pad and the lead at the same time, and I show them what a good joint looks like - and that we're trying to avoid blobby cold joints . We might have to redo a few initially, but they get it very quickly.
I love talking shop at my kids just to see what sticks. They regularly surprise me.
Hmmm. Donno. For the mains detection or survaillance i'd just go with a 240V=> 5V transformer. Proper isolation, and with a voltage divider you get frequency and voltage to directly do stuff with AD pins.
..And whilst you're there you can also use it as power supply..
But then for voltage measurement your load must be constant
Well.. depends how exact you need to know.
Of course you would have to measure before full bridge rectifier, regulator and stuff,
but for "no load" operation you could always stop heavy cpu load.
For Frequency and "is it around 230V" the voltage before rectifier and with a normally oversized (private project) transfomer would not really drop that much.
If you really need an idle running transformer, then use a switching power supply for your load, or better AC surveillance hardware ;-)
The center pad is a touchpad, so probably has x and y movement via finger motion on the touchpad... To explain the last 2 servos erratic motion.
Did you pick up on the fact that the silk screen for the pin header on Austin's AC monitor matched the output lugs, pin-for-pin according to his printed sheet?
Mailbaaag - :-)
Happy easter - I'm glad that it's vacation time, and I don't have to feel bad enjoying another segment of Dave's fun - whilst skipping out on my own work.
Keep up the good work!
Points for FranLab ;)
That was a great Fran impression, Dave!
The 'big button' on the DualShock4 is actually a touch pad, its a really awesome feature for use with a PC (on the PS4 the game has to be programed for it).
Couple of great kits. That frame that simulates slow motion is super cool.
Hi, I am the guy who sent you the blinkenrocket kit. Thanks for showing it! I actually soldered the EASY version of the kit with my daughter. This is only the matrix, the coin cell holder , two buttons and the audio jack. No SMD components. I think 6 is a little early to handle those tiny parts with scissors while melting metal.. But i DID solder the NORMAL version, with all SMD components, last week with a friends kid who is 9.
Pliers! :) sorry, english is not my first language. But speaking of scissors.. i built a machine to help assemble the blinkenrocket kits that uses scissors. check it out here th-cam.com/video/rFaoaCJ1R8o/w-d-xo.html
Am i the only one noticing the safety spacing on the PSM400A from Austin's Circuits is completely missing? The "long" footprint for the resistors come VERY close to the bottom right block of resistors which is connected to the low voltage side. FAIL!
trap for young players
Also you get the bigger 5W resistors, but the holes are already filled with solder :|.
I was doing PCB layout when you had to do it 4 times full size with tape and stick-on pads. Because I was used to working on the track side of pcb's I knew most of the common clips pinouts from underneath and not the way the data sheet shows which was very useful when doing layouts. We had a huge wooden camera on rails to take the photo of the artwork which was on a light box 6 foot square at one end.
The mains detector can be used to drive a real time clock that will be accurate over a long period.
You forgot the DIY time frame link.
That flower thing at 23:40 is really cool, never seen that before.
OCD alert: There was a protective plastic membrane on the LCD of the game console. Also, the PCB has the button names silk-screened on the front.
Glad to see a new mailbag!
Woohoo, new mailbag at last! :D
I got a set of these ServoShock from the KickStarter event, they are awesome! Neat to see it make the EEVblog mailbag!
32:06 - 34:25 Why does 4-wire short have mostly negative resistance?
I think the zip in the 4 wire short was to protect it while the shipping.
Great to see mailbag again! Thanks!
Don't talk to me about postage. A viewer on my channel shipped up a SVHS VCR to repair from USA to me in Canada. Cost him 86.00 yanky bucks to ship it to me, and 59 Loonies to ship it back after it was repaired. More in shipping than the repair cost.
I hope my son looks up to me when he's older like your son looks up to you. That's all a father can hope.
Ah, Protel Easytrax/Autotrax, I miss those two. So much ahead of their time. Quick(awesome keyboard shortcuts), easy and intuitive. And Aussie made!
Star, nothing better than the star layout. 4 wire shunt, all traces must be equal length, and terminate at single point.
What about the Radioshack dry etch transfers or the Bishop Graphics layout tapes, or Kepro circuit systems products? The Heathkit store sold a few of these vintage pc design items.
Hi Ref. the mains monitor . I did something similar about 25 years ago so that we could know when a mains phase ( or phases ) failed and for how long . I wired the opto's outputs up to the printer port of an old double floppy drive laptop and powered it from a 12v lead acid
battery which was being trickle charged by the mains . The screen showed events as they
happened and the second floppy stored all events . A windy weekend could record lots of
glitches etc . The researchers now knew how long their experiments ran before a mains
failure etc happened .
As you say --- of very limited use . I only built the one and I did not bother with a PCB , I just
used veroboard . GW Basic running on Dos was fast enough to capture glitches .
The 4 terminal shorting plug -- just use longer screws and put nuts under the plugs to make
the plugs longer .
Alan
Old formats are the best. Nice to see mailbag back. That knife still scares me even from 8k+ miles.
Great mailbag Dave :D I like the Playbuino kit, shame i didn't hear the sounds, those good old 80's 8 bit bleeps!. I would put some smd LEDS around the display so you can play it in a dark room, but that's one of those things you just have to experiment with i guess. Rock on! And the playstation servo control also a great idea!
My fav videos for sure!.. Thanks Dave for all you do.
The pins on that shorting bar is both soldered /and/ screwed in :)
Dave, do you have a link to the time machine picture frame thing? I can't find it below. Thanks.
I was soldering at Sagan's age
I did my first soldering around 7 ish. :) But I started out with a Ladybird book from the library : Learnabout Simple electronics. :)
I think i started tinkering and stuff around six. The furthest back i remember myself holding a soldering iron was when i was 10 or so.
I wish I had had a soldering iron and some instruction at his age. I was melting plumbing solder on top of the wires with a pilfered lighter, no flux.
+Fridelain No way! ME TOO!!!! :D Also set my first fire at age of 3...
You're all weak. I was programming and soldering in utero.
Hey Dave, you forgot to mention that Protel was an Australian, Tasmanian creation.
The MID400 if you look at page 6 of the Fairchild datasheet, you will see the output is as quoted, "Line Monitor".
Its output does not switch HIGH/LOW with the AC waveform, but HIGH to LOW on the detection of AC input.
It unfortunately cannot be used as a zero crossing detector.
I used to work in a factory with 8085 based control system, KELLER/Cellatronics, a German company, and it was purely 240Vac control system, no 24Vdc control supplies. Their input optos were a HP version of the MID400.
Why not just use an aluminium board and use the metallic back as the short for the 4-wire short plug?
Wow He sent you a PS4 controller I know thats not the most expensive thing someone has sent but still ~$65. Its actually a useful tool to have in the shop as its bluetooth so it can sync to a lot of things including PC and android.
Wow! This was a while in the making!
That "big button" on the ps4 remote is actually a touch pad
YAY MailBag!! Been waiting for the next one for ages! :D
Speaking of outatime, please put a link to the start of the coverage of each item in your show notes.
"labs a mess"
You're not the only one.
There is a error in the code for those servos. It is reading as value=1 when you press the button and it is just sending that to the servo. So it moves one "step", could be that there is min/max values for them somewhere.. Or it is just value that is sent as is, like the analog stick.
Finally! We've waited this for so long!
Look at the back side of the PSM400 there is barely one mm space between the mains and the ground plane.
Why can't people just publish their example code on GitHub/BitBucket/etc...
Tim Savage Lots of electronic hobbyists don't know how to git that's why.
Who did you think the big fat "clone OR DOWNLOAD" button is for on every Github project...? Those who do?
Attila Asztalos Download / Clone is very different from committing to a repo. I know is not rocket science but some people choose not to learn revision control because they don't deal with software on a daily basis.
Constructive Bytes and? Most people don't need to commit, they're just going to click download like they would anywhere else, no extra complication.BUT those who know can use source control and submit fixes.
kilrahvp I guess people can't read nowadays Tim Savage was talking about publishing that means uploading a project to git. That's what this conversation is all about, not people who download code.
The servo controller setup appears to be for a anamatronic head or something.
That little hand-held game machine... You could do a better set of games on an old TI-85. You can snag those for about $10 now, and also have a graphing calculator. My favorite Ti-85 program was the serial terminal. Very useful.
My HP 34401A has the same issue with the recessed jacks, not all connectors will fit properly.
If you want a different shorting arrangement, can you just rotate the plug 90° to switch up the topology?
Hi, Dave! Since you have all those servos, maybe you could write a simple code to make them all repeatedly turn left-right by, say, 45deg and show us how much drift with temperature they have. I've bought two (probably fake ones) marked 'Tower pro SG90' and they show cca. 3deg/degC drift. They contain AA51880 servo controller IC. The chip gets hot when turning the motor and within a minute, neutral position is off by 90deg.
The short.. Why, is any copper removed from that board at all?
Different lighting setup, Dave? The changing shadows around 6:20 was a bit annoying and I don't recall noticing this before.
@20:50 even I didn’t know rosin comes from tree sap, lol.
This is the best Mailbag yet!
The mains monitor thing is a bit over engeneered/overkill... you can do the same with a simple relay..
15:33 That's just a few minutes after Dave declared he liked *purpose-built things* ? :D
On the Austin, are there low side traces / pins less than 6mm from mains side traces / pins. Because that would seriously defeat the isolation.
I filled my Siglent scope with hot water and tried to measure something with the tea set. It's easy to do.
Where is the link for the time machine thingy?
Which link is for the flower frame kit? How gorgeous!
What do you do with all the goodies you receive?
This made my day. Thank you!
Oh! Now I know what a second suck of the sav is!! A sav is a battered Saveloy sausage!! Thanks Dave. Here in the old dart in London we've got a sort of greeting that goes " Oi Oi Saveloy!! " :)
holy shit I haven't seen one of these in a while. Sagan is not a baby anymore... I'm old dammit
Wow! That tea service is *very high quality*
You're so lucky.
In+ to In- fatty trace, small traces going away opposite side, sense should be badass high impedance on the meter anyways.
I might buy that servoshock will be a good RC car controller and I could have lights and neons on them
Dave you learnt that controller in seconds, it's a nice controller. Does Sagan not like the video games much?
Nice mailbag video mr Ausie :) regards from UK
The whole point of the 4-wire short is to have zero volt on the sense wire. You achieve that by shorting them. To make sure the meter doesn't complain, you short the input side as well and connect it to the sense side. But having both sides of the input connected to the sense would be a mistake, since you want zero volt on your sense wires. The actual implementation is thus the only correct one.
Where is the slow motion kit link?...its a very good kit for sampling theory education
Yes the S&H. Would love to purchase the latest multi meter but shipping + import duties .... tough sell.
An ex coworker of mine bought the previous version. He had to go to customs to pay the fee, explain why the manual is not in German and explain that it is not a dangerous device .... was nice to hold it for a few minutes :)
Simple it is - I see new Mailbag video... I click like.
Mailbag in March, and opens packages with Merry Christmas and Happy New Year, way to go Dave.
Clearly does not appreciate people sending him gifts.
Then you write a comment to say you have clicked like?
I’ve bought things from “mighty car mods” and it cost a shit load to buy and then when it turned up I had to go to the post office to pay even more for shipping!
I (like most people) have bought things from China, Japan, Taiwan, etc and I’ve NEVER had to pay for anything like that.
That 4 terminal shunt, I personally would of covered both sides with a very thick trace to get the lowest resistance as possible
whats the efficiency of the dagger/knife ?
For that first one, the guy has programmed the servo connection for you, thats pretty good. I could do the whole thing myself, except the cool thing is it works with the playstation controller, so i could actually go get it myself and get the cool controller with it! not bad.
Where do you get that flower thing?
I’ve got a PlayStation controller that seems like the left direction button is permanently pressed but I’ve had it all apart and can’t seem to see anything obvious and I can’t fix it. Any ideas?
that time frame is cool, also i have to say i think that with the larger smt packages and good clean surfaces and good solder- that there are time when assembling smt boards are quicker than through hole equivalents (in terms of keeping components in place its so much easier for smt to tab everything down quickly to get near all the components flat, then do the other side 'properly' then tidy up the first side if its ugly. with low thermal mass you dont have to think too much about order of component soldering for the board and heavy copper or contacts absorbing heat and no faffing with component leg bending to stay in place or otherwise time spent with glues or tapes or foam/sponge etc)
long story short, with a good pair of fine tweezers, good eyes, good solder and clean surface/pads i find smt work quicker than through hole, while my eyes can still see that is..;/
Don't underestimate what can be done with some practice..
One of my colleagues has got good at replacing these by hand with a bench magnifier and hot-air re-flow pencil:
e2e.ti.com/blogs_/b/powerhouse/archive/2016/06/27/turning-sand-into-gold?keyMatch=femtofets&tisearch=Search-EN-Everything
To see them properly, the microscope shows that solder paste is really made with solder balls!
"Fumes, you don't want to breath them"
I believe the pounding headache after making that mistake will be enough discouragement :P
fair suck of the sav Dave..we need more mailbag! :P
We need more because there are lots of 'time sensitive' packages waiting to be opened for sure!
more like snail bag
@therealnightwriter: sav is correct...as in Saveloy..battered sav's are a staple of all shows and fairs right around australia!
I LOVE the FranLab channel! she finds some of the neatest things! Watch the Nemo tube video.
I always presumed that "fair suck of the sav" was referring to the wine sauvignon blanc, as in "you must be drunk".
the mounting holes on the 5 pin side of the ac detection unit pcb are unusable because they are up against the screw terminals!
PAP IRIS
Good idea for that Austins project. Arduino shield would have maybe been a better idea. Most electronics hobbyists nowadays have an Arduino or equivalent development interface board in their collection. Maybe this is a prototype?? Also couldn't see open source hardware logo. Maybe a better idea to somehow monitor AC waveform on the line for data analysis.
How could you resist tearing down the PS4 controller?
The 'original' Protel was Tango!
what a lovely kid, gratz dad
j'aime beaucoup ce "Mailbag"👍👍👍👍👍
that knife has gotta be for taking down crocs not opening letters! lmao
Its so funny when you moved the controller and the servo moved. You didn't know it had a motion sensor hahahaha. Its like you are feeling a ghost.
Next thing you know those little Japanese fighting robots are going to be doing 16 hit combos
I'm going "Shake it Dave, Shake it!" Wait a minute.... lol :)
Wehre can I find the Stop-Motion-Frame? I think ist the thumbmail Link got lost
Aw man, havent seen a mailbag in donkeys! Glad to see em.
Heh heh, who doesnt love good old Fran?
Keep up the great work, Dave!
I have sent you a calculator a few months ago from Portugal. The package went from one side of the planet to the other and I've paid less than 4€ for shipping. It took 2 or 3 months to get there probabilly, but it was dirt cheap.
It was cheap because it was way light. From 500g the prices start to climb and climb and climb a lot!!!