PTS100 T12 $15 Iron

[alextrical]

Hi All

I was wondering if anyone else has come across these irons

(I grabbed a couple as a backup to a pinecil V2) and was wondering how possible it would be to convert them to IronOS.
If you are interested, I'm happy to do the legwork to make a schematic, though I'm not familiar with the current programming language being used, but I'm also happy to learn

The main chip being used is a CHIPSEA CS32F030F6P6
It looks to be a ARM M0 (maybe a STM32 compatible?)
https://datasheet.lcsc.com/lcsc/2110131830_CHIPSEA-CS32F030F6P6_C2905292.pdf

https://a.aliexpress.com/_mKdnsQ4

[alextrical]

I'm probably going to start tracing out the connections over the next week. It's seems to be a rather basic implementation.
Power is provided by a CH224K set to request 20V
A XL1509-3.3 is used to buck the voltage down to 3.3v
The MCU is a CS32F030F6P6

I'm hoping the ST-link V2 clone I have is able to connect to this over the 2 wire programming interface and dump a backup of the FW.

Before I invest time into this, does the MCU look like there is a chance of success to get running ironOS?

[Gobracket]

Forked and managed to fix the display for v7 board https://github.com/Gobracket/Gobracket-OS

Also simplified the display..

Need idea how to detect motion (for auto sleep - currently based on timer).. Not sure if this model has built-in sensor / accelerometer, any thoughts anyone?

[alextrical]

That looks awesome. The unit I have does know when there is no movement and go to sleep after a few minutes of no movement.

[Gobracket]

Cool! Any idea how to enable it in the code? Thanks!

[alextrical]

I will take a look at my unit tomorrow and see what ist using to detect the movement, hopefully the board I have isn't too different from the version you have.

My best guess is that motion is being detected with the white SMD chip beneath the MOSFET, that looks to be a vibration sensor similar to these
https://ae01.alicdn.com/kf/Sf8e7368087db40a38b351d376d5debf1z.jpg_640x640q90.jpg

Assuming that chip will be connected to one of the GPIO on the MCU, the countdown timer could be reset every time it sees movement.

I will take a look inside the unit tomorrow and see where the vibration switch is connected to the MCU, it looks like the schematic is ommiting that part.

Edit: the V3 board I have, the vibration sensor is connected to pin 6/ PA0. As for how to enable it in firmware, unfortunately I haven't played around with it on this device yet

[Gobracket]

`Thanks man! Code updated. Firmware now have the motion detector feature!