I'm not sure what is realy going on with yor station but definitely shouldn't behave like that, my help is limited but I will try to help you. First power it up with lower voltage like 19V or less and see how it behaves, use another op-amp if you have ( those fake ones they behave differently from one to another ), play a bit with C13 and try to increase or decrease the value and see how the station it behaves, try to change to PID controll or DIRECT control and see witch one it works best, measure the temperature of the tip externaly and comparet with the temperature displayed by the station and lastly VERY IMPORTANT when you calibrate the station use an external thermometer like a multimeter or a dedicated thermometer for soldeing stations otherwise the calibration it wil not work and not only that the tip may glow red even if the station is showing a lower temperature, the calibration is made in 3 steps at 3 different temperatures and you need to measure the real temperature of the tip externaly at each step and adjust it accordincaly.

Hi, it starts to glow when calibrating I had to quickly unplug the soldering iron so that it doesn't burn, it behaves like this as soon as I put the soldering iron in the station it heats up by itself and when I type in 30 degrees it exceeds up to 300 degrees, which range is used for temperature measurement and control? Thermocouple Amplifier Maybe I have some error there?

@@user-bw5hk5nb3k there maybe multiple reasons, most related to your opamp circuit. to check if your opamp is working properly write a small arduino program to display adc values of opamp and upload it to arduino, then heat your c245 tip with other iron and see what values it is showing, values should increase as temp increase. if ii is very random or fluctuating increase c13 value to 50 to 100nf capacitor and try it will stabilize fluctuation. try to change opamp if possible (Most effective) mcp602 or sgm8552 . then check.

Hello, thanks for your help, I finally got it working, only worked stably with 24v 6amps without crashes and reboots. But now comes my slight problem, despite calibration, whether pid or direct type, the numbers easily jump back and forth back and forth back and forth e.g Set at 150 degrees It dances while 152, 153, 155, 160, 157 back and slowly down always in this area 150-160 dance areas. Would c13 with 50nf or 100nf solve the problem, without c13 a capacitor the station doesn't work at all 😥

@@user-bw5hk5nb3k i think everything is working fine now , dancing 152, 153, 155, 160, 157 for 150 degrees is normal as there is noise from opamp, it happns mostly while using pid type control.

i think you are using your same old arduino board used for v4 T12 station. that older board saved adc values of T12 in eeprom. Clear eeprom and upload code again. As adc values of T12 tip are high arduino try to match those values and keeps on mosfet so iron get very hot but adc values for c245 are very low so it cannot be reached. So clear eeprom calibrate c245 tip.

You connected the handle totally wrong. Red wire = TC Blue wire = P+ Green wire = GND Fallow correctly the schematic and pictures of the pcb that I put it in the project folder.

No, it is fresh opened from seal a Arduino Board Nano , i was upload directly that C245 Ino , the Temperatures are springing arround, it isnt working it is 100% fail to use that it stays 30 Grad and he heats and heats and heats it is 100% short free TC Connection is my problem, where is it ? The Earth from Tip ? The P+ From Tip ? The Heater P- From Tip ? Please i will a sucess nothing more 😞

Its doesnt work, its give totaly false Temperature Numbers The TC Connection on the Shematics are at the Endpoint meeting at P+ I have connect it a few minutes before now, it is 100% nor working, i am not lying. MY Iron Tip is from Yihua and it is 2.8 Ohm anythings wrong ?

What are you talking about?, În the schematic where is the GX12 connector, TC goes to thermocouple amplifier and the P+ goes to high side switch that controls the heater and P- is the ground ( GND ). Please fallow carefully the schematic, when the handle comes in the package ( NEW ) the wire configuration is different in the connector, you have to reconnect the wires in order to match the connections of the soldering station.

I have made version 4 of this station and modified it to use with c210 tip.

Please can u Helps me please i sit here really 21 Days or more now : ( Okay, so I need 24V 6 amps? But it measures incorrect values ​​at 25 degrees, it keeps heating up, and I can guarantee you 100%, I haven't forgotten any shorts or anything it is give false tempmessures TC and P+ are the Same Point at the end or ? Where are The TC Coknection ? Please have u a discord or so to can helps me ? 😞

Hi have u use the Version 4 Ino and the shematics from these Station with other OPAamp and 500k right ? I have 12V 5.83A Powersupply is it workin with C210 ?

@@user-bw5hk5nb3k I believe so, but is it enough for the circuit to function properly?

I hav yesterday check everything and it is 100% with 24v 2.71 Amps not working ( c245 ) i have order 24v 6 amps supply the Tips alone needs 120-130 Watts i hope i can help u, have u build the circuit ?

But the cheap version described by me will not show if some contacts are shorted together.

If it worked for me it should definitely work for you as well. But sometimes electronics is hard, isn't it? I don't spend many days coding, making schematic, pcb, testing, designing the case and making the video just to show you somting that doesn't work, I don't think that in this way I will attract many subscribers. Anyways, I will try to help you out, first you have connect the handle wires correctly, red is thermocouple, blue is heater and green is ground, check if the Mini360 voltage is set correctly it should be around 7V and from arduino board you have 5V, check for short circuits and improper solder connections, use another op-amp, it is possible to have a bad op-amp, another thing is that the transistor BC337 should be soldered backwards or use 2N2222 and solder it normally, otherwise the mosfet will run very hot and the temperature of the tip will be uncontrolled and will have bad temperature readings. good luck.

Hello, thank you for your reply, if I finish this I would be the happiest person so: I don't have any short circuits, as soon as I switch on the station the numbers jump around from 300 degrees slowly down to room temperature even though there is no soldering iron on it, is that normal? My soldering tips have 2.2 ohms, does that still work? I soldered the BC337 the wrong way around like in your video, not like in the circuit diagram but like in your video Vin = 7v 5V = 5V Mosfet doesn't get hot either, but I set it to 30 degrees, it goes up like a cannon with the temperatures and then it glows. My power supply 24V, 2.71 Amp is enough? actually it should because it glowed like a cannon I don't have to change anything about it Leave the program like this and it should work? Please I am really grateful to you 😔

you can use Protopasta's magnetic PLA to print a core. it does work, though not as well as pure iron it is better than other filament.

sometime wrong connections or fake component cause issue. check opamp gain and transistor connection for mosfet.

Freecad

i use a 24v 3Amp but i cant use the station i am not sure if that really works or its have a mistake on circuit or i have a mistake , but it is 100% not working

There is a warranty you threw it away

You knew better then me what hapened, right? It was broken from the box! 😂

I have a creality it came with a warenty

Only on paper mate! Dead letter 😅

@@vladav87I’ve used creality printers for awhile and if you ordered from them or their official sellers then you’d absolutely get a screen replacement

Hi, Friend have u done ur station and its working ? i sit over 14 Days and the content creator doesnt answer and i feel thats a joke or so because never see such those problems which a content creator was not answer

It's sodium persulfate.

Apologies. I went further and see you left some of the rotary code in but used button code to replace. I am prone to the same thing, not tidying up old code when making changes. I do try to designate in comments so I don't confuse my poor old brain in future changes. Thanks again for a nice project.

Its fake

I updated the files ( see schematic and top board picture ) I marked as SW+, from top board the SW+ wire goes to the handle holder and the handle is ground, when the handle is inserted in to holder D10 is pulled down and the station enters the stand-by mode, first time I had another idea to connect the stand-by wire but later I changed to single wire but I forgot to modify the schematic as well, sorry for that.

@@HMProjects 👍👍

how u know thats fake ? because i cant use it, its ending a disaster

@@pgsss6354 No I didn't, I sprayed the boards with colofonium dissolved in isopropyl alcohol, it gives it a good protective layer, after it dries is like transparent varnish and is not sticky, of course being basically a flux it easier to work on the boards, solder or desolder components, and can be washed with alcohol or acetone and reapplied afterwards. I filmed the process but I totally forgot to include that part of the video.

Dont have it's fake

I have trash now again an arduino 3 items on trash , i dont know it that real or not please are the bc1337 in rightly position ? On shematics with the PCB Design it is on other way and on video other ? These Shematics Kill my Arduino and my Money please help, which area are important to know what is blow my Arduino ?