The Raspberry Pi Thread [6]

Fugg-A-Pi ,is my middle name .

I do have the chili kit .got it for my daughter .tinkered with it wayback ,I'm going to try and do it over the winter for her. I dont have any need of a old Pi,have a couple sitting doing nuttin now !

good luck [,weeds] are usually easy to get to grow ,LOL

alphanumeric said:

@Catnip, what temperature do you set you hot air reflow too, when wanting to removea SMT component?
And do you use the same setting when soldering something on a PCB?

I use between 700F and 800F depending on the component and how big the pads are, and whether I am using lead free solder or not. Larger pads and lead free solder take more heat. Keep in mind that the component you remove will likely be destroyed by the heat used to take it off. I usually throw removed components away rather than take a chance that they may not work again.

To solder something back on, I use a lower heat. About 650F to 700F. It seems to work for me, but watch your dwell time. You can easily lift a pad with too much heat. Solder quickly, my friend.

- - - Updated - - -

alphanumeric said:

Hooked up a couple of V2 cameras to my Pi 5, one NOIR and one Standard.
Official camera cables, and official V2.1 Cameras.
They appear to be detected ok?

Code:

kyrie@raspberrypi:~ $ libcamera-hello --list-cameras
Available cameras
-----------------
0 : imx219 [3280x2464 10-bit RGGB] (/base/axi/pcie@120000/rp1/i2c@88000/imx219@10)
    Modes: 'SRGGB10_CSI2P' : 640x480 [206.65 fps - (1000, 752)/1280x960 crop]
                             1640x1232 [41.85 fps - (0, 0)/3280x2464 crop]
                             1920x1080 [47.57 fps - (680, 692)/1920x1080 crop]
                             3280x2464 [21.19 fps - (0, 0)/3280x2464 crop]
           'SRGGB8' : 640x480 [206.65 fps - (1000, 752)/1280x960 crop]
                      1640x1232 [83.70 fps - (0, 0)/3280x2464 crop]
                      1920x1080 [47.57 fps - (680, 692)/1920x1080 crop]
                      3280x2464 [21.19 fps - (0, 0)/3280x2464 crop]

1 : imx219 [3280x2464 10-bit RGGB] (/base/axi/pcie@120000/rp1/i2c@80000/imx219@10)
    Modes: 'SRGGB10_CSI2P' : 640x480 [206.65 fps - (1000, 752)/1280x960 crop]
                             1640x1232 [41.85 fps - (0, 0)/3280x2464 crop]
                             1920x1080 [47.57 fps - (680, 692)/1920x1080 crop]
                             3280x2464 [21.19 fps - (0, 0)/3280x2464 crop]
           'SRGGB8' : 640x480 [206.65 fps - (1000, 752)/1280x960 crop]
                      1640x1232 [83.70 fps - (0, 0)/3280x2464 crop]
                      1920x1080 [47.57 fps - (680, 692)/1920x1080 crop]
                      3280x2464 [21.19 fps - (0, 0)/3280x2464 crop]

But error out when I try to use one.\

Code:

kyrie@raspberrypi:~ $ libcamera-hello --camera 0 -t 0
[0:05:43.560205697] [2896]  INFO Camera camera_manager.cpp:284 libcamera v0.1.0+118-563cd78e
[0:05:43.573060269] [2899]  INFO RPI pisp.cpp:653 libpisp version v1.0.2 fa44a258644a 22-11-2023 (21:59:22)
[0:05:43.600561393] [2899]  INFO RPI pisp.cpp:1112 Registered camera /base/axi/pcie@120000/rp1/i2c@88000/imx219@10 to CFE device /dev/media1 and ISP device /dev/media0 using PiSP variant BCM2712_C0
[0:05:43.600717338] [2899]  INFO RPI pisp.cpp:653 libpisp version v1.0.2 fa44a258644a 22-11-2023 (21:59:22)
[0:05:43.610991058] [2899]  INFO RPI pisp.cpp:1112 Registered camera /base/axi/pcie@120000/rp1/i2c@80000/imx219@10 to CFE device /dev/media2 and ISP device /dev/media3 using PiSP variant BCM2712_C0
Made X/EGL preview window
[0:05:44.298961436] [2896]  WARN V4L2 v4l2_pixelformat.cpp:338 Unsupported V4L2 pixel format Y16 
[0:05:44.298993918] [2896]  WARN V4L2 v4l2_pixelformat.cpp:338 Unsupported V4L2 pixel format RGB6
[0:05:44.299004455] [2896]  WARN V4L2 v4l2_pixelformat.cpp:338 Unsupported V4L2 pixel format BGR6
[0:05:44.299017492] [2896]  WARN V4L2 v4l2_pixelformat.cpp:338 Unsupported V4L2 pixel format PC1M
Mode selection for 1640:1232:12:P
    SRGGB10_CSI2P,640x480/0 - Score: 4504.81
    SRGGB10_CSI2P,1640x1232/0 - Score: 1000
    SRGGB10_CSI2P,1920x1080/0 - Score: 1541.48
    SRGGB10_CSI2P,3280x2464/0 - Score: 1718
    SRGGB8,640x480/0 - Score: 5504.81
    SRGGB8,1640x1232/0 - Score: 2000
    SRGGB8,1920x1080/0 - Score: 2541.48
    SRGGB8,3280x2464/0 - Score: 2718
Stream configuration adjusted
[0:05:44.299402158] [2896]  INFO Camera camera.cpp:1183 configuring streams: (0) 1640x1232-YUV420 (1) 1640x1232-BGGR16_PISP_COMP1
[0:05:44.299519899] [2899]  INFO RPI pisp.cpp:1396 Sensor: /base/axi/pcie@120000/rp1/i2c@88000/imx219@10 - Selected sensor format: 1640x1232-SBGGR10_1X10 - Selected CFE format: 1640x1232-PC1B
[0:05:44.312581265] [2899] ERROR V4L2 v4l2_videodevice.cpp:1906 /dev/video12[16:cap]: Failed to start streaming: Broken pipe
ERROR: *** failed to start camera ***
kyrie@raspberrypi:~ $

I don't know much about cameras yet, but to me, it looks like either the C++ code has an error in it with V4L2 (Line 1906 in v4l2_videodevice.cpp as well as the warnings in v4l2_pixelformat.cpp in line 338) or there is a driver error. Does that code come with Bookworm? If it does, it might need an update/upgrade. Perhaps the driver is old, or not ready for the Pi5.

Sorry, that's all I got.