💬 In Wall AC/DC Pcb (with Relay) for MySensors (SMD)

[sundberg84]

@nightbodom you connect it to a ISP programmer to the port. This will take care of 5v and Gnd as well so don't connect to AC during upload

[Nightbodom]

@sundberg84 so I use ISP programmer for burning bootloader... but after that how can i upload sketch... usualy I use FTDI programmer for proMINI ect. but here I don't see TX/RX... so how do you upload sketch?

[sundberg84]

@nightbodom / either you use the isp to program the sketch without the bootloader or you can use the MysX connector where you will find all the necessary pins for ftdi.

[Nightbodom]

@sundberg84 thanks for advice... I successfully load bootloader through ISP with spare Uno as programmer, then I try to load a sketch with ftdi but it didn't recognize PCB. I also try with arduino uno as ISP and it goes without problem. I use node manager sketch with relay and connect it to AC wires...and nothing!
After visual checking of PCB I check fuses and notice that thermal fuse is dead. So I think I burn it with soldering. Any advice how to solder it?

[sundberg84]

@nightbodom - this can be a bit tricky. Some suggest cooling pincers or tongs to hold it while soldering. Myself I solder as normal and wait it to cool down before continue. As long as you are quick and not heat it up to much it should work.

If you power the pcb with FTDI it should work without the fuse though. But I guess you power it through AC->HLK and use only RX/TX/GND and Rst from ftdi?

[ben999]

@nightbodom I use crocodile clips and get fairly good results with very few dead fuses....

[Grave]

Is it possible to use with RFM69 modul?

[gohan]

I guess not on as this module is using SMD NRF24 module

[sundberg84]

@Grave - well @gohan is right, I cant fit a RFM69 module on this board.

[Grave]

I will try to rebuild it in eagle for RFM69. I think the space is there for an RFM69.

[Grave]

Or I will build an adapter.

[Grave]

Hi sundberg84,
can you maybe take a look on my board. I have rebuild it so you can use it with rfm69 and NRF24 moduls. I have build an adapter, which will stand vertical behin the HLK-PM01.
But how can I upload a picture?

[sundberg84]

@grave Sure, you can just copy it into the message box.

[Grave]

http://www.directupload.net/file/d/5020/dyi4y337_png.htm

[sundberg84]

@grave - at first it looks really good. Hard for me on a image to check every connection but I can not see any errors.

[Grave]

Thanks,
I can upload this evening the schematic and the board. But my schematic is not so fine as yours. I didn´t find pinheaders with 2mm distance, so they are single pads.

[Grave]

Hi,
here are my schematic and the layout. I have build also an adapter for the rfm69 modul to use with an Sensebender Micro, because I had still place enough.
https://www.file-upload.net/download-13018265/InWallPCB71RFM69.brd.html
https://www.file-upload.net/download-13018266/InWallPCB71RFM69.sch.html

[sundberg84]

@grave - sorry, I dont run Eagle anymore so I cant check them.

[Grave]

Do you use both, thermal fuse and the normal fuse? I can´t see it in your picture. I don´t find a normal fuse with 0,2A in Germany.

[sundberg84]

@grave yes I do for both temp and current protection. I want it to be overkill when it's diy. If you follow the links on openhardware you will find the security discussion.