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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
1.1k stars 174 forks source link

Cam hangs on Boot Screen, Hardware Issue? #89

Closed Catarallus closed 1 year ago

Catarallus commented 3 years ago

Hello together,

my Thermocam won't boot, what I see is the Boot Screen. I guess it's is a hardware problem.

I use the PCB Rev 2.3 with the new Lepton Breakboard V2.0 (20 Pins) and the Lepton 3.5. I also noticed that the Diode on the Lepton Breakoutboard is in the wrong direction. I wired the Voltage source to J3 connector to solve this Problem. The Arducam is from robotshop which look's like a litte bit different like in the assembly guide, but the pin assignment is the same. In the new BOM is no Arducam listed, is this part obsolet? I have no MLX90614 installed because in don't need it, right?

The voltage on the Lepton Breakboard and the Arducam is about 5V.

Any suggestions what else I can do to fix the Problem?

maxritter commented 3 years ago

Hey @Catarallus!

For the Lepton Breakout Board V2, you need the PCB 3.0 and the firmware version 3.0. Then the Lepton3.5 will work out-of-the-box and you do not need the MLX90614.

Unfortunately the visual camera is not supported any more on V3, as it made some problems. But you can always use a regular camera and create combined images on the PC with the ThermoVision software.

Best, Max

Catarallus commented 3 years ago

Hi @maxritter,

tank you for your fast reply. Flashing Pre Compiled V3 failed with the Teensy Uploader. It seems the file can't be loaded, "unreadable" is shown in the Uploader Statusbar.

greetings Johannes

maxritter commented 3 years ago

Hey @Catarallus,

do you use the Teensy 4.1 and the firmware loader from here? Then it should work, just tried it out myself.

Best, Max

Catarallus commented 3 years ago

Hi @maxritter,

yes I use Teensy 4.1. The flash process is now succesfully, but it only works with the push button (it is not easy to push the button if the Teensy is soldered to the PCB already) But who cares. After Power up the screen is black, now. I use farther PCB Rev 2.3. The Lepton is contacted with some wires on the PCB, of course I payed attention to the correct Pins. (The Thermocam will be mounted on a drone, so it's not a Problem). What are differents beetwen PCB Rev 2.3 and PCB 3.0? Do I really need the new PCB?

Primergi commented 3 years ago

Hi! Are you sure Breakout Board V2 works? You need to remove the Thermocam, and measure the DC-DC voltage.Must be Vcc 1.2v, Vcc 2.8v(if FFC is active), Vcc 3.0v.

Catarallus commented 3 years ago

Hi,

I here a "click" noise from the Lepton, it sounds like a camera shutter. Which measurement points I have to check?

greetings Johannes

Primergi commented 3 years ago

"Which measurement points I have to check?" Photo of the Breakout Board on the back side please.

Catarallus commented 3 years ago

IMG_20210507_130133

IMG_20210507_130102

Primergi commented 3 years ago

Lepton power

Primergi commented 3 years ago

Sorry if something is unclear. I am Russian, and I use a translator :)

Jandroks commented 3 years ago

From what you wrote it appears that you connected Teensy 4.1 to the PCB top and therefore nothing can work for you. I put together Thermocam v3. and it worked without any problems.

Catarallus commented 3 years ago

@Jandroks thanks for your comment. The pinout between Teensy 4.1 & 3.6 seems the same. Do you also know my combination is not working?

Catarallus commented 3 years ago

@Primergi

Sorry if something is unclear. I am Russian, and I use a translator .

I understand your suggestion. I will do the measurement if I had time to go ahead with this project.