https://apollo.open-resource.org/ 2026-03-07T17:25:16+00:00 https://apollo.open-resource.org/ https://apollo.open-resource.org/_media/wiki:dokuwiki-128.png text/html 2025-04-24T17:47:54+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2015:08:18:another-active-wideband-receiver-antenna-ara-2000-with-lna-rebuild?rev=1745516874 Another ARA-2000 rebuild and LNA approach It's always rewarding to see that distributing and sharing open knowledge & tools ultimately leads to much more individual empowerment and faster technological evolution/innovation than “protection” of “ text/html 2025-04-24T17:45:52+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:03:18:harder-soft-unbricking-a-bricked-ubiquiti-unifi-uap-pro-ap?rev=1745516752 Harder Soft-Unbricking a Ubiquiti Unifi UAP-Pro AP [ubiquiti-unifi-uap-pro-inside-with-serial-debug-connected] Re-deploying the Ubiquiti Unifi UAP-Pro with OpenWRT (instead of Unifi) at the new base-camp revealed a problem: it simply didn't work anymore. No DHCP reaction, no default IP, nothing. Except for the LED blinking white after a reset, it seemed completely broken. Opening the case and attaching a terminal to the serial console, revealed bootloader output that wasn't promising but at le… text/html 2025-04-24T17:45:36+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:03:21:more-pigi-pcbs-available?rev=1745516736 More PiGI PCBs available If you've missed the opportunity to get a PiGI PCB of the first batch, here's your next chance to turn your Raspberry PI into a versatile Geiger-Counter. All hail Fehlfarbe. pigi geiger pi raspberry hardware radiation monitoring research development text/html 2025-04-24T17:45:26+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:04:11:ezvd-easy-voltage-divider-calculator-and-live-simulator?rev=1745516726 EZVD - Easy Voltage-Divider Calc-/Simulator [EZVD Output on the console (python/ncurses)] If you want to learn more about voltage-dividers or need a tool to design/verify voltage-divider resistor selection for your next electronic engineering project, try ezvd research lab voltage-divider simulation software hardware text/html 2025-04-24T17:45:16+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:04:12:the-darc-knight-rises?rev=1745516716 The DARC Knight rises It seems like it's time to pre-warm our oscillators and prepare our SDRs for more DARC action in the near future. For more than the last 4 month, the traffic to darc-side-of-munich-hunting-fm-broadcasts-for-bus-and-tram-display-information-on-90-mhz revealed an interesting pattern: There was a steady increase of traffic coming first from the big European & Asian automobile manufacturers, then from automotive subcontractors globally and now from Asian electronics manufactur… text/html 2025-04-24T17:44:57+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:04:30:vesc-open-source-bldc-esc?rev=1745516697 VESC - An open-source/hacker-friendly BLDC ESC Next generation robots, drones and motorized scooter/skateboard/e-bike projects need efficient and resilient BLDC controllers, so if you're also looking for a solid open-source brushless motor speed controller (BLDC ESC) for your project or knowledge/inspiration to bootstrap your own, then you most definitely want to have a look at text/html 2025-04-24T17:44:44+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2012:08:02:active-wideband-receiver-antenna-for-sdr?rev=1745516684 Active Wideband Receiver Antenna for your SDR [[Dressler ARA-2000]] Software Defined Radio (SDR) has finally reached a much broader mass of people, who wanted to play with RF technology, but didn't find the time or resources to learn all necessary skills, to build a hardware based radio. Thanks to the work of the text/html 2025-04-24T17:44:29+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:09:02:howto-update-zebra-zm400-label-printer-firmware-on-linux-without-windows?rev=1745516669 HOWTO - Update Zebra Printer Firmware on Linux In case you're in the field and confronted with the task to update a Zebra Printer's Firmware but don't want (or can't) use Zebra's windows-only ZDownloader or Zebra Setup Utilities (both don't seem to work from within Wine) - don't worry: It's actually way easier than it is on Windows and requires only two tools you should have installed on any GNU/Linux or UNIX system anyways: text/html 2025-04-24T17:44:17+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:09:12:howto-external-antenna-mod-gl-inet-6416?rev=1745516657 HOWTO - GL-Inet 6416 External Antenna Hack [gl-inet-6416-external-antenna-hack-9] Since a lot of people continue to show interest in hacking their ML-3020 with an external antenna it was time to show how to do it for the GL.Inet 6416. The following modifications can be done in 5-10 minutes, give you a stable RP-SMA connector and have been tested and running here on 5 units without any problems. text/html 2025-04-24T17:44:04+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:12:13:more-pigi-geiger-counter-modules-in-the-wild?rev=1745516644 More PiGI Geiger counter modules in the Wild It's truly awesome to see how the pigi, born under ghetto-style conditions with zero prior knowledge or budget, has not only spread to hackers and other individuals with a sense of independence and prudence worldwide, but was now adopted by a special working group of text/html 2025-04-24T17:43:46+00:00 chrono (chrono@undisclosed.example.com) https://apollo.open-resource.org/mission:log:2016:12:28:joint-statement-against-radio-lockdown?rev=1745516626 Joint Statement against Radio Lockdown The Radio Lockdown Directive threatens user rights and Free Software, fair competition, innovation, environment, and volunteering – without comparable benefits for security. Many organisations and companies are joining up in proposing measures to EU institutions and EU member states to avoid these negative implications while keeping the Directive's goal intact.