Hi, I like your soldering station design. Unfortunately, I am unable to find any information on R29 and R30, what formula should I use to calculate it?

My next idea is to simplify the scheme a bit by getting rid of the isolated converter and simply adding a wrapped transformer winding. Do you think it will work fine?

Can you provide the soldering station HEX file? Thank you very much!

Hello there! I have already made the circuit board but I cannot flash the firmware! Can I send a tutorial?

Thank you very much for the author of the HEX file.

Hi, I really like your project and I want to make my own soldering station, but I wold like to use a JBC T245 handle, do I have to do some modification to your design in order to make it work with this handle ?

Dear sir, great project!!
For the 245 solder tip pinout, could you please double check that you can measure temperature from the 245 solder tip pin 1(green) and pin2(blue) when you have a chance ?

because I found the pinout information in your front page may not be correct ?

Anyway, to make it easier, allow me to define the largest body/shell as 1 (green in your front page),
the middle part as 2(blue), and the smallest tail pin as 3(red).

According to my measurement, when heated with hot air gun to 40-50c, pin1(green) and 2(blue) cannot measure temperature at all (most digital multimeter can do it measure temp), while other pin combination can.
and I did it with two different clone tips from two different brand names /sellers, one is Kaisi, the other is AiXun.
base on this fact, pin 1(green) and 2(blue) should be heater pin, and not ThermalCouple pin or in serial of it at all.

On the other hand, if the front page pinout is correct, pin 1 and 2 should have been measured 40-50C (but no it couldn't ).

There is another webpage has its independent measurement has the same conclusion, by measuring resistance (tc has some tiny resistance cannot be easily measured )
http://adgd.ru/2021/01/04/jbc-soldering-cartridges-pinouts/
and scott's video has the same conclusion and picture
https://www.youtube.com/watch?v=UvH49nzpJts 3:10

In that case, could you have been providing 24V to the heater through the TC ? ...

another thing, some clone handle may use random color for different pins, so....

yet another possibility, different clone tip has different pinout ??

Thanks!

change
#define SLEEP_Pin GPIO_PIN_15
#define SLEEP_GPIO_Port GPIOA

to:

#define SLEEP_Pin GPIO_PIN_11
#define SLEEP_GPIO_Port GPIOC

Hello, you JBC soldering station is very good, can you put the software generated HEX firmware? Burn this firmware is very convenient, if you can, thank you very much.

Can you help? thank you