Lepton sensor diagnostic failed

maxritter / diy-thermocam

A do-it-yourself thermal imager, compatible with the FLIR Lepton 2.5, 3.1R and 3.5 sensor with Arduino firmware

http://www.diy-thermocam.net

GNU General Public License v3.0

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Lepton sensor diagnostic failed #98

Closed GautierR closed 2 years ago

GautierR commented 2 years ago

Hi,

Just finished the assembly of my camera. Unfortunately I have a Self-Diagnostic failed for the FLIR Sensor while booting. Is there a way to get a more descriptive issue ? I have double check all the soldering point of the FLIR board. I am using teh latest Firmware 3.02.

I was thinking that it may be due to the sensor not being push enough, but I clearly hear a click. You have bellow some pictures. I got my sensor on Mouser.

Any advices ? Thanks a lot

IMG_20220303_190312

IMG_20220303_190351

IMG_20220303_190403

helmarw commented 2 years ago

Do you know if the sensor is working at all? Did you test it e.g. on a raspberry first with standard code from flir? just asking because my first Lepton i got from digikey was broken from the start. after some discussion with flir customer support and digikey i got a refund (not really a 5cent device, so it makes sense to give it some effort :) ). second one i bought from mouser and everything work fine from the start ... I dont think you can do much wrong with this DIY Thermocam, i built it myself and using it ever since ...

GautierR commented 2 years ago

I tried to build the code for the raspberrypi_video (see here : LeptonModule/software/raspberrypi_video ) without success.

I am using a raspbian dist, and not able to install qt4-dev-tools (needed for qmake).

Anyway, I have ordered a new sensor to see if it can works just by switching them.

GautierR commented 2 years ago

I have actually managed to get it compiled with qt5 and run the software.

It seems to works even if it's very slow and the refresh is not fast at all.

I have plugged all back to the DIY-Thermocam PCB, and still get the same issue during the boot

EDIT:

I tried to installed a previous firmware version. The V3.0 gives more info on the possible Lepton failure. It seems that the issue comes from the I2C as shown in #40. Using a multimeter I have checked all the connection from the lepton module to the teensy, all seems okay.

GautierR commented 2 years ago

I bought a new sensor, solved the issue.

BTW, I have also designed an updated version of the 3D printed enclosure (thinner and more smooth). I will try to make another iteration to fix some issues and upload both STEP and STL if someone wants it.

zhaocundang commented 1 year ago

IIC OK , SPI OK, but touch continue lcd show "lepton error , try to reset.." I don't know where is wrong , how to deal with it