Unregulated simple all glass vape

[Flotsam]

Up and running off the same power source as the heater

https://imgur.com/a/ZSiwx2O

That's all the actual components now need to figure out better housing and make some updates to code to enable the buttons and other minor updates.

curious if you have any estimates for power consumption?
so the PWM switching is all handled by the Pico board?
Was there existing code that you could make use of?
Nice job, this is fun to watch.

 

[highvaper]

curious if you have any estimates for power consumption?

Not just estimates - real time power consumption now - there is a live volt reading and knowing the restance of the element it works it out live - quite cool to watch it adjust power in watts and not the arbitrary level of 0 to 10 for the pwm - there is now a temp/watt graph

so the PWM switching is all handled by the Pico board?

Yea all regulation is handled by the rp2040 - the actual power is controlled by a separate mosfet circuit - i wanted to keep this separate as it then allows the board to be used with solid state relays, normal relays and switched stuff.

Was there existing code that you could make use of?

I used some libraries for some hardware like the display, rotary dial and the simple pid library to do the maths.

Take a look at the repo on github its all available for people to use if they want - i have added some updates recently and will add more soon as i have already added some bits for the new leds.

 

[Flotsam]

Take a look at the repo on github its all available for people to use if they want - i have added some updates recently and will add more soon as i have already added some bits for the new leds.

Excellent job! congrats , Maybe i missed it but do you have the github link?


ooh ooh I want next hit!

 

[XpeeN]

Great job and nice documentation! I really enjoyed reading this.

Yea all regulation is handled by the rp2040

Any reason you choose rp over an esp32? It might be enough for your project

 

[highvaper]

Any reason you choose rp over an esp32?

I had a bit of experience with full blown pi's when i started the project off and someone at work i chatted with was a bit of a pico fan so have kind of just rolled with it - the documentation out there is really good too so that always helps.

I suspect if i started from scratch i would probably go down the esp32 route now but there isnt much difference between them for my needs - the esps are a bit faster but the pico has the pio instances which can be super fast (so far not needed to use them for this though).

Wifi/bluetooth on board would be useful for other things but for a vape the last thing i want to do is tie it to a mobile with bluetooth.

 

[highvaper]

do you have the github link?

Sure its on the other thread but here you go:

GitHub - highvaper/heater-controller: MicroPython RP2040 Heater Controller

MicroPython RP2040 Heater Controller. Contribute to highvaper/heater-controller development by creating an account on GitHub.

github.com