PDF to show solder pads

[Shdwdrgn]

Could you please also include a PDF file that gives the measurements and spacing for the solder pads? My software doesn't seem to recognize any of the existing file formats so I will need to create my own component.

[hdphilip]

Thank, you, it's a worthless product without engineering data, you would thing they would know that...

[Shdwdrgn]

Since writing my initial request I have ordered and received two of the v2 boards. A notable difference between the original board is that v2 has what appears to be a thermal pad on the bottom. However I still have no information with which to begin designing a circuit board. While I could probably guess at pads for the I/O pins around the edge, the new copper on the bottom raises questions such as whether it should be grounded, attached to a heat sink, or if there needs to be a minimum clearance to signal traces around it.

[Shdwdrgn]

I submitted a request for contact on the LilyGo web site, perhaps now someone will respond to this issue.

Another question that has come up is regarding the safe temperatures that can be used for this board in an SMD oven. It would be a real shame to try and bake this board onto a PCB and have the whole thing fall apart.

[giobauermeister]

Hey guys!

I also couldn't find any info about footprints for this module, so I tried making my own footprint in KiCAD. Here is what I did.

They have a DXF file in the repository, so I opened it with Autodesk online Viewer https://viewer.autodesk.com. Once opened you can measure pad dimensions, distance between pads, module dimensions, etc. Then in KiCAD I created a footprint based on the measurements.

Here is the footprint I created. Please be aware that I didn't test this footprint in production yet ESP32_micro.kicad_mod.txt

And here is some testing I did with the footprint printed on paper.

Hope it helps you guys creating your own footprints.

[arget888]

I wrote a message on Aliexpress and got an answer here it is ;-)

[giobauermeister]

@arget888 Thanks! That's even better!

[Shdwdrgn]

Cool, thanks for that! I can make up a pattern in my own software with that as well.

Should I be surprised that I never received an answer from my submission on the lilygo website either? It is disappointing that there seems to be almost no support for what could be a very useful device.

[arget888]

@Shdwdrgn I contact them directly via aliexpress where i bought the boards, the have a fast response to all my requests and helped me by solfing most of my problems now

[robouden]

Arget888,

You have the symbol files too?

regards, rob oudendijk

[adb84]

Here is a link to the footprint on LilyGO repository: https://github.com/LilyGO/ttgo-32-micro-breakout-board

Regards, Adrien

[lienbacher]

thank you @adb84, but the repository only contains the project, schematic and pcb. id does not contain the library and footprint.

[ole00]

@adb84: thank you for your footprint and schematic symbol. @lienbacher : schematic symbol and footprint can be exported from adb84's project and then imported to your user library.