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stephan192 / hoermann_door

Control Hörmann doors directly via MQTT
MIT License
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Parts substitution & JLCPCB ordering #13

Closed pboschi closed 1 year ago

pboschi commented 1 year ago

I was trying to produce a JLCPCB order list (see attachment), but the following parts are missing and very difficult to find. Are you able to suggest alternatives, or to modify the gerber with some more common ones?

The following should be ok:

But I'm having issues with the following:

I'm really not an electronic engineer and I don't have the skill to change the PCB, but I think that the buck regolator and PIC really need to be changed with more common ones.

RS485Interface_top_cpl.csv RS485Interface_top_bom.csv

pboschi commented 1 year ago

I did some further checks, and those parts are available in other parts of the world... so I think I'll order from JLCPCB and just solder the missing parts by myself. However, I still have a doubt about the 220/22uH inductor.

stephan192 commented 1 year ago

The inductor SRN6045TA-220M is a 22uH inductor. See Datasheet

stephan192 commented 1 year ago

When i started this project back in 2019, all the parts were easily to source. Sorry, but i will not update the gerber files (change parts or suggest alternatives) if i don't need it myself because the chip market is changing nearly every day and a part which is available today maybe sold out tomorrow.

Gamogamer commented 1 year ago

When I made my PCBs I re-did the Power delivery with jlcpcb basic parts. I also changed package size of the pic for availability as you can see in the issue i opened. You can find the Project here

https://oshwlab.com/thegamogamer/hoermann-garage-door

I was trying to produce a JLCPCB order list (see attachment), but the following parts are missing and very difficult to find. Are you able to suggest alternatives, or to modify the gerber with some more common ones?

The following should be ok:

  • MCP1826S-3302E/DB ==> SPX3940AM3-L-3-3/TR
  • ST485BDR ==> ST485EBDR
  • ESP-12eSMD ==> ESP-12F(ESP8266MOD)
  • 100u ==> RVT100UF16V67RV0120

But I'm having issues with the following:

  • AOZ1283PI Can't be found.
  • SRN6045TA-220M ==> VLS6045EX-221M or VLS6045EX-220M Lower max current, but is it needed? Also, i think this is a mistake; shouldn't the inductor be 22uH, reading on AOZ1283PI datasheet? So maybe VLS6045EX-220M is a better choice.
  • PIC16F15324-I/SL ==> ? Candidates are: PIC16F15325-I/SL but it can't be found PIC16F18326-I/SL but it doesn't have 2 EUSART

I'm really not an electronic engineer and I don't have the skill to change the PCB, but I think that the buck regolator and PIC really need to be changed with more common ones.

RS485Interface_top_cpl.csv RS485Interface_top_bom.csv