I can do a writeup of the recipe but it will take some time.
Will do if anyone is interested.
SDR dongle used: Nooelec v5
Footprint:
- 14 processes
- 40 megs ram
- 43 megs sd
Advantages:
- cool, idle, predictable machine
- readonly filesystem
- 20 seconds reboot time
Drawbacks:
- ads-b receiver only, no map or "subscriptions"
- wired lan only
- no security!
- Openwrt minimalism
Here's the result:
Will do if anyone is interested.
SDR dongle used: Nooelec v5
Footprint:
- 14 processes
- 40 megs ram
- 43 megs sd
Advantages:
- cool, idle, predictable machine
- readonly filesystem
- 20 seconds reboot time
Drawbacks:
- ads-b receiver only, no map or "subscriptions"
- wired lan only
- no security!
- Openwrt minimalism
Here's the result:
Code:
BusyBox v1.36.1 (2025-10-19 16:37:45 UTC) built-in shell (ash)root@Raspberry:~# ps | grep -v '\[' PID USER VSZ STAT COMMAND 1 root 2276 S /sbin/procd 153 ubus 1432 S /sbin/ubusd 154 root 932 S /sbin/askfirst /usr/libexec/login.sh 155 root 932 S /sbin/askfirst /usr/libexec/login.sh 323 logd 2064 S /sbin/logd -S 128 324 root 1620 S /sbin/logread -f -h Raspberry -r 192.168.1.162 514 -p /var/run/logread.2.pid 431 root 2632 S /sbin/netifd 774 root 8660 S /usr/bin/readsb --device-type rtlsdr --net --net-bo-port 30005 --lat xxxx --lon xxxx --gain 48.0 --quiet 963 root 1228 S /usr/bin/socat TCP-LISTEN:2323,reuseaddr,fork,nodelay EXEC:/bin/ash -il,pty,stderr,setsid,ctty,sane 1069 root 2852 S {ntpd} /sbin/ujail -t 5 -n ntpd -U ntp -G ntp -C /etc/capabilities/ntpd.json -c -u -r /bin/ubus -r /usr/bin/env -r /usr/bin/jshn -r /usr/sbin/ 1127 ntp 1336 S /usr/sbin/ntpd -n -N -S /usr/sbin/ntpd-hotplug -p 0.openwrt.pool.ntp.org -p 1.openwrt.pool.ntp.org -p 2.openwrt.pool.ntp.org -p 3.openwrt.pool 1378 root 1252 S /usr/bin/socat TCP-LISTEN:2323,reuseaddr,fork,nodelay EXEC:/bin/ash -il,pty,stderr,setsid,ctty,sane 1379 root 1348 S /bin/ash -il 1388 root 1344 R psroot@Raspberry:~#root@Raspberry:~#root@Raspberry:~# lsmodcrc_ccitt 12288 0libcrc32c 12288 0root@Raspberry:~#root@Raspberry:~# free total used free shared buff/cache availableMem: 938564 38720 884640 104 15204 867616Swap: 0 0 0root@Raspberry:~#root@Raspberry:~#root@Raspberry:~# df -hFilesystem Size Used Available Use% Mounted on/dev/root 58.8G 43.5M 58.7G 0% /tmpfs 458.3M 104.0K 458.2M 0% /tmptmpfs 512.0K 0 512.0K 0% /devroot@Raspberry:~#Statistics: Posted by Cathode — Sun Mar 01, 2026 12:27 am