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Prototype for OK LAB Karlsruhe
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Integrierter Webserver läuft über: http://unitv2.py/ bzw http://10.254.239.1
- https doesn't work!
- Wireless SSID M5UV_xxxx has key "12345678", alternative to USB lan
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SSH
- root: 7d219bec161177ba75689e71edc1835422b87be17bf92c3ff527b35052bf7d1f
- m5stack: 12345678
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Nanodet:
pip install pillow==9.0.0oder 8.0.0. -
evtl Alternative: https://github.com/dog-qiuqiu/Yolo-Fastest
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unitv2# cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 16.71
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
processor : 1
model name : ARMv7 Processor rev 5 (v7l)
BogoMIPS : 16.71
Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 5
Hardware : SStar Soc (Flattened Device Tree)
Revision : 0000
Serial : 0000000000000000
unitv2#
nitv2# lscpu
Architecture: armv7l
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
Vendor ID: ARM
Model: 5
Model name: Cortex-A7
Stepping: r0p5
CPU max MHz: 1400.0000
CPU min MHz: 400.0000
BogoMIPS: 16.71
Flags: half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
Current frequency:
sudo watch -n 1 cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq
- Check info at m5 Docs
- Download install file from https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/firmware/UnitV2/M5UnitV2RootfsRecoveryPackage-09072021.zip
- Follow web instructions to format SD card
- Unzip recovery package
- Follow extracted Readme to start recovery procedure
unitv2# uname -a
Linux unitv2 4.9.84 #196 SMP PREEMPT Wed Apr 7 02:40:43 CST 2021 armv7l GNU/Linux
unitv2# cat /etc/os-release
NAME=Buildroot
VERSION=2020.02.8
ID=buildroot
VERSION_ID=2020.02.8
PRETTY_NAME="Buildroot 2020.02.8"
unitv2#
unitv2# python --version
Python 3.8.6
unitv2# mount
ubi:rootfs on / type ubifs (rw,relatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=57344k,nr_inodes=14336,mode=755)
proc on /proc type proc (rw,relatime)
devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=666)
tmpfs on /dev/shm type tmpfs (rw,relatime,mode=777)
tmpfs on /tmp type tmpfs (rw,relatime)
tmpfs on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
sysfs on /sys type sysfs (rw,relatime)
cgroup on /sys/fs/cgroup type tmpfs (rw,relatime,mode=755)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,relatime,net_cls)
/dev/mmcblk0p1 on /media/sdcard type vfat (rw,relatime,fmask=0000,dmask=0000,allow_utime=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
devpts on /dev/pts type devpts (rw,relatime,mode=600,ptmxmode=000)
unitv2#
ssh access failes (from Fedora 37) with:
[kugel@tux2 nanodet]$ ssh m5stack@10.254.239.1
Received disconnect from 10.254.239.1 port 22:2: Too many authentication failures
Disconnected from 10.254.239.1 port 22
Solution:
- edit /etc/ssh/sshd_config and set "MaxAuthRetries" to some larger value (defaults to commented out)
- Stop sshd
/sbin/start-stop-daemon -n sshd -K
- Start sshd
/sbin/start-stop-daemon -S /usr/sbin/sshd
# ifconfig
br0 Link encap:Ethernet HWaddr 00:30:1B:BA:02:DB
inet addr:10.254.239.1 Bcast:10.254.239.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6460 errors:0 dropped:37 overruns:0 frame:0
TX packets:2312 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:427624 (417.6 KiB) TX bytes:18883931 (18.0 MiB)
eth0 Link encap:Ethernet HWaddr 00:30:1B:BA:02:DB
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6460 errors:0 dropped:0 overruns:0 frame:0
TX packets:14310 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:518064 (505.9 KiB) TX bytes:19675684 (18.7 MiB)
Interrupt:35
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1309 errors:0 dropped:0 overruns:0 frame:0
TX packets:1309 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:80340 (78.4 KiB) TX bytes:80340 (78.4 KiB)
wlan0 Link encap:Ethernet HWaddr 00:E0:99:D2:DA:76
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan1 Link encap:Ethernet HWaddr 02:E0:99:D2:DA:76
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:129 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
#
# cat /etc/hostapd.conf
interface=wlan1
bridge=br0
driver=nl80211
logger_syslog=-1
logger_syslog_level=2
logger_stdout=-1
logger_stdout_level=2
ctrl_interface=/var/run/hostapd
ctrl_interface_group=0
hw_mode=g
channel=6
beacon_int=100
wme_enabled=1
ieee80211n=1
ht_capab=[SHORT-GI-20][SHORT-GI-40][HT40+][HT40-][DSSS_CCK-40]
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=12345678
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
ssid=M5UV2_ae9f
# cat /etc/network/interfaces
# interface file auto-generated by buildroot
auto lo
iface lo inet loopback
#
Directory /home/m5stack/payload
unitv2# ls data
classifier_online_features.dat classifier_online_info.json
unitv2# ls images
0Caocao_1.png 2ZhouYu_1.png 4ZhaoYun_1.png test.jpg
1Zhuge_1.png 3Ruozhi_1.png 5JunShi_1.png
unitv2# ls models
angle_op.bin
angle_op.param
crnn_lite_op.bin
crnn_lite_op.param
dbnet_op.bin
dbnet_op.param
mnet.25-opt.bin
mnet.25-opt.param
mobilefacenet.bin
mobilefacenet.param
mobilenet_ssd_code_detector_ncnn.bin
mobilenet_ssd_code_detector_ncnn.param
nanodet_m.bin
nanodet_m.param
shufflenet_v2_x0.5-opt.bin
shufflenet_v2_x0.5-opt.param
srnet.bin
srnet.param
yolo-fastest.bin
yolo-fastest.param
unitv2#
unitv2# ls -R uploads/models/
uploads/models/:
nanodet_80class yolo_20class
uploads/models/nanodet_80class:
model.json nanodet_m.bin nanodet_m.param
uploads/models/yolo_20class:
model.json yolo-fastest.bin yolo-fastest.param
unitv2#
- Nanodet: Torch does not run on 32 bit arm
- Darknet Yolov3: Built-in opencv is not compiled with dnn support
- Cannot replace default opencv with opencv-contrib due to insufficient memory
- Cross-compile the package https://files.pythonhosted.org/packages/32/19/34e2e5a02c3f0db06e31f2382da935a1041f89b192e593f53ddfef67ecb0/opencv-contrib-python-4.8.0.74.tar.gz ?
- Cross-compile yolov3-tiny from C-model?
Edit /etc/wpa_supplicant to add SSID, e.g.
unitv2# cat /etc/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
eapol_version=1
ap_scan=1
fast_reauth=1
# new
network={
ssid="karlsruhe.freifunk.net"
key_mgmt=NONE
}
stop daemon:
start-stop-daemon -n wpa_supplicant -K
restart daemon:
wpa_supplicant -B -Dnl80211 -i wlan0 -c /etc/wpa_supplicant.conf
start dhcp client:
dhcpcd wlan0
check:
wlan0 Link encap:Ethernet HWaddr 00:E0:99:D2:DA:76
inet addr:192.168.4.10 Bcast:192.168.4.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:19 errors:0 dropped:0 overruns:0 frame:0
TX packets:19 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2650 (2.5 KiB) TX bytes:2247 (2.1 KiB)
unitv2# ping cern.ch
PING cern.ch (188.184.37.219): 56 data bytes
64 bytes from 188.184.37.219: seq=0 ttl=46 time=25.955 ms
64 bytes from 188.184.37.219: seq=1 ttl=46 time=23.856 ms