Duet Wifi heats Bed and Hotend from start

dc42 · 26 Oct 2018, 14:57

You need a 74HCT02 chip in a TSSOP package. A typical part number is 74HCT02PW or SN74HCT02PW. The PW suffix is the package type.

sixfeetunder · 27 Oct 2018, 08:14

ok i get some of these. Thanks a lot for you help

sixfeetunder · 31 Oct 2018, 20:38

So now i switched the chip and i think i did a quite bad job, but it should work. at least from my point of view. The board is still working (can connect to it with yat and the heat LEDs are not flashing from start). so far so good. but now i have another problem: when i start the board and want connect to wifi, the wifi module is blinking blue and then switches off. in yat i get following message:

M552 S1
ok<LF>Error retrieving WiFi status message: SPI timeout<LF>WiFi module is idle<LF>Error retrieving WiFi status message: SPI timeout<LF>Error retrieving WiFi status message: SPI timeout<LF>Error retrieving WiFi status message: SPI timeout<LF>Error retrieving WiFi status message: SPI timeout<LF>Error retrieving WiFi status message: SPI timeout<LF>WiFi module is idle<LF>

Do anyone have an idea what i could have damaged or what is wrong? maybe i forgot something?

SupraGuy · 31 Oct 2018, 22:04

No expert here, but does your board remember your network?

Is the M587 command still in your config.g?

M587 S"WiFiForSupraGuy" P"SupraGuysSuperSecurePassword"

You can enter just

M587

using your terminal, and it should tell you what networks it remembers. I generally start wifi troubleshooting with purging all of those, and adding them again.

You could purge all networks with:

M588 S"*"

Or just specify the networks you want to forget.

dc42 · 31 Oct 2018, 22:19

@sixfeetunder said in Duet Wifi heats Bed and Hotend from start:

So now i switched the chip and i think i did a quite bad job, but it should work. at least from my point of view. The board is still working (can connect to it with yat and the heat LEDs are not flashing from start). so far so good. but now i have another problem: when i start the board and want connect to wifi, the wifi module is blinking blue and then switches off. in yat i get following message:

M552 S1
ok<LF>Error retrieving WiFi status message: SPI timeout<LF>WiFi module is idle<LF>Error retrieving WiFi status message: SPI timeout<LF>Error retrieving WiFi status message: SPI timeout<LF>Error retrieving WiFi status message: SPI timeout<LF>Error retrieving WiFi status message: SPI timeout<LF>Error retrieving WiFi status message: SPI timeout<LF>WiFi module is idle<LF>

Do anyone have an idea what i could have damaged or what is wrong? maybe i forgot something?

Try re-installing DuetWiFiServer.bin. If it is already on the SD card, you can do this by sending M997 S1.

sixfeetunder · 1 Nov 2018, 01:59

@SupraGuy
i tried that already, but thanks for your help

@dc42 said in Duet Wifi heats Bed and Hotend from start:

M997 S1

i placed DuetWiFiServer-1.21.bin on the sd card and tried your command. But i guess it doesnt work as expected. This is what i get back:

M997 S1
Trying to connect at 230400 baud: failed<LF>Trying to connect at 115200 baud: failed<LF>Trying to connect at 74880 baud: failed<LF>Trying to connect at 9600 baud: failed<LF>Error: Installation failed due to comm write error<LF>ok<LF>

thanks for the fast reply

edit: i tried it in root and in sys directory

Phaedrux · 1 Nov 2018, 01:59

@sixfeetunder I think the file has to be named exactly DuetWiFiServer.bin

sixfeetunder · 1 Nov 2018, 07:40

Thanks for the hint. i renamed it and recognized that there was already a file like this in the sys folder. i replaced it anyways with the new one but i get the same result "installation failed..."

Jacotheron · 1 Nov 2018, 07:44

The Baud Rate is the data rate at which the main processor communicates with the Wifi chip, using the UART / Serial protocol.

The fact that it fails to get any response, tells me there is an issue where a trace between the 2 may have an issue.

The UART communication uses 2 data lines: TX (transmit) and RX (receive); the TX of one goes to the RX of the other. If a data line is damaged, the communication will fail.

One of the other guys might be able to tell you where to look for these traces.

sixfeetunder · 1 Nov 2018, 07:58

okay, thanks. i guess you are right. i can do a firmware upgrade and everything works fine, but it looks like the processort cant communicate with the wifi chip properly. I can set the wifi to active and inactive but connecting to my wifi will result in an error every time. Additionally, as already pointed out, the update of the wifi firmware itself wont work...

dc42 · 1 Nov 2018, 09:04

My guess is that you had a transient or short to the 5V or the 3.3V power rail, which damaged both U11 and the WiFi module. So I think you need to replace the WiFi module. The good news is that it's easier to solder than U11 because the pads are larger.

The correct replacement part is ESP-12S, or ESP-07S (the S is important) if you want the version with external antenna. These are are readily available on eBay.

Please note, the other component that is easily damaged by over-voltage on the 3.3V rail is the main processor. So I suggest you check first that the processor is not getting hot (slightly warm is normal) and the other functions of the Duet are working properly.

From the photo, it looks like your Duet was revision 1.04, in which case it might still be under warranty.

sixfeetunder · 1 Nov 2018, 11:06

@dc42 thanks for your informative answer. the WiFi Was working before i tried my soldering skills on the U11, thats why i wanted to figure out what i might have damaged
the Board is only 6 Weeks old thats why i asked the Internet Shop where i bought It if warranty is an option, but they refused. Do you think i should ask at the headquarters in uk?

dc42 · 1 Nov 2018, 11:30

If the internet shop was one of our official distributors (see the list at the bottom of https://www.duet3d.com/DuetWifi) then they would typically refer warranty enquiries to us, unless they had reason to believe that the Duet had been abused.

sixfeetunder · 1 Nov 2018, 11:36

they asked me to open this forum Post and After the First few posts they thought i damaged it myself, because the most likely reason was that i created a short.
it would be really nice if i could get warranty because i didnt Do anything harmful to the Board (at least i dont know about something). Do you think i should try to contact your Support Directly?

dc42 · 1 Nov 2018, 11:50

I'll discuss this with my colleagues and we'll get back to you, probably by email.

sixfeetunder · 1 Nov 2018, 13:28

thank You!

sixfeetunder · 5 Nov 2018, 16:18

@dc42 i am maybe a bit impatient, but are there any news in this topic?

dc42 · 7 Nov 2018, 08:56

I'm sorry, one of my colleagues should have got back to you. I have chased them. We agreed the warranty replacement.

If you purchased directly from duet3d.com then you will need to complete the warranty form, see https://docs.google.com/forms/d/e/1FAIpQLSdyf6gGP_ncZachWi2HH7qx1kc5TE9WeEbz83VFBckm1JBXbQ/viewform.

T3P3Tony · 7 Nov 2018, 09:05

@sixfeetunder please email info@duet3d.com if you have filled in the warranty form already, if not please fill that in as David has linked

sixfeetunder · 7 Nov 2018, 16:23

this are great news. thanks! unfortunately i didnt buy it from duet3d directly, but from makerdise.com. how should i proceed under that circumstances? @T3P3Tony