Yannick99

Gnd

There are only one gnd plate is on the back (the larger one) and yes this GND should be connected to the probe shell.

Hi, the schematics are good. trust the schematic and pcb. No need to jump anything. The probe will be working fine. But at the end, Paul same to have replace C6 22uf by 100uf and c5 is now removed. He put a bulb lamp to protect the probe supply. In case of short circuit, the lamp will turn on. But yes it's optional.

haha :) at least now it's working. Good work!

Not sure, i never try the Amp without the probe.

Nice!! keep going good work :)

When i did my probe, the video was the only schematic available. But now i found another schematic on patreon and yes 22uf is now 100uf and 4,7 is removed. To me it's no big deal. Like you said i dont think that it's realy changing something. And the 4.7uf was a bypass filter, for noise. But with battery, the dc is pure, so it was probably unnecessary and he remove this. But it's also ok if the cap is there. It will not make any difference. On your side you can try both if you want, you will see. Let me know :)

My schematic is good. Where did you see a 100uf on Paul's schematic ? Also, C5 is 4.7uf.

look at video, 15:34

Also 5 hours isn't very long. it's possible to have 9,999,997 Try more time. Recheck on tomorrow.

6,478,554... you have a problem with gps pulse. The uC always show the right count.

oh, sorry about that. In phase 5 it's almost perfect. What ocxo are you using ? The uC is maybe at the end of pwm and can't go higher. At phase 5, what voltage is on the pwm output (between gnd and pwm) ? some ocxo have 0-8v or 10v adjustment instead 0-5v and with this type of ocxo you need to add a op-amp like here at the bottom: http://www.jrmiller.demon.co.uk/projects/ministd/frqstd0.htm

Ok so it's a 5v simple oven but should be working fine. How many time you wait so far ? Is the power supply is good (noise, power maybe) ? On my side the same ocxo is working fine. I have also tried the 131-100.

It's suppose to be .01 It's because i did a copy paste of c9 :P Thank you i'll correct the schematic. Nothing will change on pcb so we are good.

Hello mpoletti, the answer is yes and no. to have an 10mhz accurate yes. If you plug the device each time your are using, the gpsdo will run at last known speed (saved in eeprom). This one will be very very close to aim with a bit of a drift but can be use anyway and the drift will disappears over time.

Oui au départ le triac est ouvert un peu. J'ouvre la meme chose pour 50hz. Par contre sur 230v le courant est moindre. Je sais pas si l'interruption va se déclencher. Sinon il faudra ouvrir un peu plus le triac en version 50hz. C'est la seule chose que je vois qui pourrait ne pas fonctionner vu que je ne l'ai pas essayé. Pour le reste, les triacs sur 230v il n'y a pas de problème.

Salut Denis, merci pour les commentaires. Non le courant ne passe pas par R5,C1 avant que le triac ne soit ouvert. Je comprend qu'en France vous avez du 220/50hz et que les pieces ne sont pas toujours facile à trouver. Pour le code, il détecte le 50hz et se synchronise en conséquence, ca devrait fonctionner sans rien modifier. Par contre, ici je n'ai pas pu tester a 100% car je n'avais pas de source 220v/50hz et pas plus de scie 220v. Si ça ne fonctionne pas, mon code est en assembleur, je pourrais vous l'envoyer pour modification. Laissez moi savoir si vous avez d'autres qiestions. Peut etre en pv je ne sais pas si c'est plus rapide mais ici sur instructable les notifications de commentaires sont assez lent.

I just read the datasheet. I dont know why i wrote 30 Amp. It's realy 25A. Thank for your comment.

Hello, your welcome. i saw your pictures. You did well. look nice :) Is the instruction was ok ? uC wasn't too hard to program ?

Thank you Jessy :)

Hi edz880, thank you for your comment. In fact the probe had only one error. The value of C1 wasn't good. But was working anyway with the wrong value.I also decide to remove the input voltage diode. This wasn't an error. It was working fine to lower voltage of alkaline battery. But, sometime was adding a noise at low volume depending of what type of diode was used. So i decide to remove this feature completely like Paul's schematic.That's said, now this probe is like the original and i'm using this one myself very often. It's working very fine. But yes you can build the paul's original probe. Difference is, Paul's probe have no gerber file but if your are ok with diy pcb no problem.Some other confusion is another group or guy (EDA i think) have come out with another version of Paul's p...

Hi edz880, thank you for your comment. In fact the probe had only one error. The value of C1 wasn't good. But was working anyway with the wrong value.I also decide to remove the input voltage diode. This wasn't an error. It was working fine to lower voltage of alkaline battery. But, sometime was adding a noise at low volume depending of what type of diode was used. So i decide to remove this feature completely like Paul's schematic.That's said, now this probe is like the original and i'm using this one myself very often. It's working very fine. But yes you can build the paul's original probe. Difference is, Paul's probe have no gerber file but if your are ok with diy pcb no problem.Some other confusion is another group or guy (EDA i think) have come out with another version of Paul's probe with different component names. We can't mix schematic . Paul's probe original schematic doesn't have any component name (C1,C2,C3 etc). So base on this, we are come out with same schematic but different component name.And other are looking for component location. To be honest, i dont know why, everything to build this probe was here.When i'm doing an instructable, i want this perfect and i do my best for that. This probe is working fine.

You adjust the pot to have duty to 50% at the output like the picture. Do you have an oscilloscope ?If no, you can adjust the pot to have 1.75v at the output. It will be not perfect but will be ok. That's what i have on my side.

bta24 package is to220 so spacing is 2.4mm max 2.7mm. https://www.st.com/resource/en/datasheet/bta24.pdfYou right for B1, i'll correct that. Thank you

ok thanks :)

Thank you for your input. Yes my hot side was to the right. I mirrored that :) Very quick to do and if it can help some people why not.For my clearance may appears to be too close but honestly, i dont thing this will be a problem. Future will tell us.The current detection works like this. The atmel does't give a pulse. Atmel is waiting for a low to high coming from T4. low to high does an interrupt and start firing the triacs. When it pass from hi to low it stop the saw. check option and stop vacuum now or later.Thank you for the advice, nice day!

You have all you need here. Download the gerber file. It's all you need to order pcb. Just upload the gerber file to a pcb manufacture. You can also see the final pcb by uploading gerber file here: https://gerber-viewer.easyeda.com/Let me know if you have problem

I'm using eagle cad from cadsoft.

Helping you ?

I found that add some diode pout a feedback noise at very low volume. I removed those diode.

Thank you, your right. This is a mistake. It sould bu 1uf. I'll do the correction. thank again

If you look at the picture with the gerber file, you will see where component are installed.

If you look at the picture with the gerber file, you will see where component are installed

Well done thanks for sharing :)

Done, i added 6 seconds optional at the end on v1.1

Done, i added 6 seconds optional at the end on v1.1 Thank you for the comment :)

My code is in avr assembler.

First, from fan voltage you need a diode and a low pass filter. On 200vAC you will have 282v DC. After, by tension divider. 2 Resistors, 1M and a 15k. 1M from fan voltage to a ADC pin. And 15k from the ADC pin to gnd. Now use the ADC to check the voltage. If between x and y = speed 3 etc...

Sorry about that, was just kidding. I removed the word chick but pretty will stay... Because yes, she is very pretty. Thank for your comment.

I'm doing a 1.1 version and i'm thinking to add a delay of course. Was thinking to add 3 secondes ? is it enough ?

You must look for electrical box gangable like:https://www.homedepot.ca/product/iberville-device-box-single-gang-12-5-in-cu-gangable/1000106182orhttps://www.rona.ca/en/device-box-gangable-2-1-2-0320302

The Triac bta24 is already insulate. So no need to put mica or something else to do this. I dont have release the source code. Only the .hex to program the uC

Welcome, and by the way the the opto h11aa1 have 2 leds on pin 1 and 2 in the real schematic. I didn't find the same on eagle so i took a regular one but i should create the real one when i'll have some time. And also i'll capture some oscilloscope waveform and do a "under the hood" section at the bottom... when i'll have some time :)

Yes the device itself will handle the output without problem. But, yes you must have a circuit breaker of more than 15 amps on 120V if you cut hard wood. Look here will see amp of many table saw under load. https://www.toolboxbuzz.com/head-to-head/best-portable-jobsite-table-saw-head-to-head/On 230v the amp is the half, so no problem.You can also use the module on 2 separate breaker (2 hot) like i said, the module will handle the load. The Triac are 30 amps each.

It’s because your 7404 isn’t the same as mine. 74hc04 74ls04 etc... there are many kind. So instead to install divisor resistors put a potentiometer. Check thé schematic on my other gpsdo you will understand.

Oh great advice, i’ll change my code for this. At the end I’ll add a 3 secondes delay and after I’ll turn off vacuum. Thank you for feedback!

Thank you !!

Oh great advice, i’ll change my code for this. At the end I’ll add a 3 secondes delay and after I’ll turn off vacuum. Thank you for feedback 😊

Oh great advice, i’ll change my code for this. At the end I’ll add a 3 secondes delay and after I’ll turn off vacuum. Thank you for feedback 😊

Different ? Where ? Supposed to be the same

Yes you are perfectly right. did you see the eevlog video on gravity/frequency! I love this video. It show how much those thing are sensitive :) https://www.youtube.com/watch?v=zILwgQhjC_Q&t=92s take care!

Hi john, i dont know your version but the last one is 1.4 Turn off and on you should see 1.4 if you have the last version. I added gps location on push button.

Well done :) your welcome!

Indeed :)

Well Done, a lot of work here. I know, i'm doing my own nixie clock. Congrats

All resistors are surface mount 1/8 watt

John, I don’t know for the transparency. Never try that before. Now, for the Paul’s gerber vs mine. It’s not the same. The schematic is the same but pcbs are not. So, t’s Normal if you are seeing differences. I did my own version of this with paul’s Schematic. That’s why

Ok i'll double checked. There no problem with r15. r15 is between 5v and transistor base T6. Note that surface mount pinout of 2n3904 isn't the same as a to92. http://www.ces-eshop.com/dir/image/cache/data/vn2/2N3904%20SMD-500x500.jpg

Your schematic is wrong. Look the carlson video at 11:40 and compare your schematic with his schematic. You will see that your schematic is wrong.

No problem. Have fun with this project. I'm using sot23 :)

Hi sea, ok, i got your point and you right... i maybe did a mistake here. I'll double check and i'll let you know. I just reformat my hd so i need to reinstall eagle first.

No i didn't do a component table. Sorry

I know john.... Try this: connect gpsdo1 to input and reset to default. Now the gpsdo will do at 10mhz with his load. Like that your counter will be good. After you will be able to check gpsdo2 with the counter.

It depend of your email i think. Ok, the gpsdo are drifting because of the load probably. The lcd 10,000,000.000 display have a refresh rate of 1000 seconds but it's high precision. if you read 99800000 (10mhz -20k) it's becasuse you have 99800000hz. The display doesn't lie. But the counter you are using show 10mhz because the reference it's the same in input and output.Now why the gpsdo are drifting ? Maybe the load is changing the frequency ? Maybe we can add a buffer at the output ? On my side as i remember, it wasn't drift at all...

Hi john. I dont thing to build 2 others gpsdo will be necessary. Try to register to eeblog. I create a thread. Will be easier for everyone and quicker. Comment section here is slow and hard to follow.http://www.eevblog.com/forum/projects/thread-to-he...

Hi John, have you turned off and on the gpsdo for a while ? If yes, it's probably the problem. I know the pwm value is in eeprom but at power on, after 15 minutes, all components are not exactly at same temperature or voltage as before. Best pratice is to always stay the gpsdo turn on. Sometime is't quicker to push button to reset default values and reconfig all the thing. Also, if you are in run mode at perfect 10,000,000.000 and frequency change for 9,999,995.948 without touching nothing, we have definitely a stability problem. Gps pulse not good, or ocxo is drifting. Hard to tell

All good. it's the normal operation. 9,999,999.999 is 10mhz +- 0,001 ppm

there are no problem John. It's a slow and very sensitive device. Your ocxo is just perfect. check here https://www.youtube.com/watch?v=zILwgQhjC_Q&t=88s Just moving the thing will change the frequency!!! :)

It can happen sometime one second is bouncing. It's why you have a number beginning by 8 instead of 9. You should read 999999909. Anyway the pwm read 09. So it will increase the voltage and the next count should be beginning by 9. If you never reach 10 000 000.000 it's maybe the pwm is at his maximun. This give me an idea... You are not the first person with this problem. Maybe i could do a 1.5 version and if the pwm is at maximun value the display could give a error or something like that.

https://www.instructables.com/id/Garage-Door-Opener-With-Feedback-Using-Esp8266/

Neo 6 is just fine. We only need the 1hz pulse, that's all.

Should be fine... 10mhz at 2.5v so the pwm will be able to find 10,000,000,000 Hz

Hi John, Yes neo 8 will be perfect. I tested this model myself. For OCXO it's up to you. Both will do. I also tried both. The important thing is the v ref. This one should be 0v to 5v. Some 12v model have a vref of 8v. In this case you must use an op-amp to match the uC 0-5v. So look the schematic before to be sure before to buy

The idea is good, i'll see what i can do if i release v1.5 a day :) Problem is, with assembler, to compare 2 large number isn't an easy thing.

Great job :) nice looking!!

Hi Igor, Very interesting, On my side, never happen. It'a probably a voltage related problem. dc-dc converter are cheap and handy but very noisy. So the zener diode is a good idea. thanks for letting me know. bye

Good work Mick!!! Very nice i'm impress :)

Hi, no it's not software. The problem is the gps pulse. This one come in late a bit. Look, you are only receiving 5 satellites. It can happen sometime. Look for a better antenna. Also, at 1000s scale. the pwm is only moving at 1/65535v. So it's no big deal.

Look at the bottom of this page: http://www.jrmiller.demon.co.uk/projects/ministd/f...His ocxo was 0-8v. So he did a amplifier. Good luck. You can click on i made it. And, if you want, picture :)

Hi, I saw the schematic of your ocxo and it’s a 0.3ppm 0 to 10v adjustment. This is the problem. You need an opinion amp buffer to match 0-5v to 0-10v or you can change your ocxo.

Maybe your ocxo doesn’t have a 0-5 v adjustment. You need probably an op-amp to match the pwm input of your ocxo. And by the way. Phase 2 is very easy to achieve. You can try to unsolder the pwm pin and install a potentiometer instead. You will control the frequency by this pot. If you achieve phase 3. Just take note of voltage. 10k pot should be ok.

Maybe noise on psu... it's a very sensitive device. what is the number of count achieved on display ? Is it moving ? Another possibilities is your ocxo variation is too large. So the pwm never hits the target. Always upper or lower. what is your ocxo model ?

Hi and thank you, what do you mean by sketch exactly? I think you are supposed to have all information you need ?

What is the voltage at pwm output ?

Done... available on instructable led board.rar

Sure, i'll do it when i have a bit of time. I'll let you know :)