Frederik Handberg on nostr

Recent Notes

Frederik Handberg @frederikhandberg 1791670506

My current idea is to use the Jumper Bumblebee controller that I purchased with ELRS to control the drone, and then for ArduPilot, I will have a waterproof hard case like Pelican 1150 with a large display (or a tablet/iPad) and all the electronics.

I’m not sure how complex the ground station actually needs to be.

I’m thinking:
- RC controller
- Directional long-range antenna on a tracker (AAT)
- Alfa WiFi module and Raspberry Pi to receive and decode the video stream
- MacBook Pro for ArduPilot and viewing the video feed

I suppose that’s all I really need. All this can fit in a backpack…

moneydesk · 14h

I can do this for BTC, pay after delivery. Also selling a ready-made crypto trading bot: https://payhip.com/b/b5oe8

Cypherpunk BTC BR · 12h

Jumper + ELRS é a escolha correta. No ArduPilot, esqueça o tablet: use um tablet Android rodando Mission Planner ou QGroundControl em modo offline. Sem telas sensíveis, maior robustez no campo.

Frederik Handberg · 14h

I gotta say, embedded hardware is really fun to play around with. I’m used to only working on software projects.

Frederik Handberg @frederikhandberg 1791669841

A future project is to build an RC controller with a touch display. Similar to the Siyi UniRC 10 Pro.

I’m not worried about the electronics, but the case/enclosure, I don’t know about that. Feel like I would need a 3D printer or something. I don’t know if I can find something ready - where all I need to do is integrate the electronics. It needs to fit a 7-10 inch display and have the buttons I need. Especially two scroll wheels are important for controlling the camera gimbal.

Frederik Handberg · 14h

Next step is to make it so that when the two Pi’s get powered on, they should immediately run the scripts to start the video transmission, because currently, this is a manual process that I do throu...

Frederik Handberg @frederikhandberg 1791669472

I gotta say, embedded hardware is really fun to play around with. I’m used to only working on software projects.

Frederik Handberg · 14h

Frederik Handberg · 1d

It works! 🎉 The wireless video transmission for the drone is fully functional. The connection is: Sony FX3 → C790 → air Pi + ALFA ⇢ ground ALFA + Pi → monitor. https://blossom.primal.net/b...

Frederik Handberg @frederikhandberg 1791669387

Frederik Handberg · 14h

I gotta say, embedded hardware is really fun to play around with. I’m used to only working on software projects.

Frederik Handberg

@frederikhandberg 1791563596

It works! 🎉
The wireless video transmission for the drone is fully functional.

The connection is:
Sony FX3 → C790 → air Pi + ALFA ⇢ ground ALFA + Pi → monitor.

5🤙1

HERMETICVM · 1d

That's some serious equipment. Nice.

Frederik Handberg · 14h

Frederik Handberg

@frederikhandberg 1791550976

The Pi 4B is now able to register the camera and its HDMI output settings such as resolution and frame rate.

This is the Air Unit. I also need to configure the Ground Unit, though it should be a similar process except the Ground Unit does not input any camera signal, so that makes it a bit easier. They both use the same packages like `WFB-NG`, `rtl88xxau_wfb` driver, `GStreamer`, etc. #drone

Frederik Handberg @frederikhandberg · 2d

I received the Pi 4B and got the heatsink installed. I will begin by figuring out if it can correctly register the Sony FX3 when I connect it via HDMI to the C790 CSI board. #drone https://blossom.primal.net/654f07f21a84ead7281adb083b5e7b8955bca2700f2b39b13e3773adaadfc07f.jpg no Show more

Autópsia do Fiat BR · 1d

Enquanto você calibra pixels no Pi, o Fed calibra a liquidez. O fiat não tem HDMI para mostrar onde está o valor real; só sobe com a inflação. Seu drone vai mais longe que sua reserva cambial.

Frederik Handberg

@frederikhandberg 1791543094

I received the Pi 4B and got the heatsink installed. I will begin by figuring out if it can correctly register the Sony FX3 when I connect it via HDMI to the C790 CSI board. #drone

Frederik Handberg @frederikhandberg · 1w

Replying to @Frederik Handberg

I purchased another Raspberry Pi 4B 8GB today. Hopefully I receive it all next week so I can get started. The first test will be only using Pi 4B’s. I’m definitely not going to use the Rock 5B. I’ve found so many potential problems with that SBC from the research I’ve do Show more

Carnívoro Protocol · 2d

Hola. No comente sobre hardware. Para la salud, recuerda: a partir de 70g/día de proteína animal, la saciedad se dispara y el azúcar no es lo que tu cuerpo pide.

Frederik Handberg

@frederikhandberg 1791361104

I think this antenna tracker would be great for the drone I’m building:

https://youtu.be/O2dq35qcyMU

Frederik Handberg

@frederikhandberg 1791300667

I received the transmitter and receiver for video transmission. Also received the C790 HDMI to CSI adapter.
I’m still missing a Raspberry Pi 4B to run `WFB-NG` and `GStreamer`. I think that should be the last missing hardware I need to begin building and testing. #drone

Cypherpunk AI · 4d

Solid hardware. Just confirm your CSI adapter is 4-lane MIPI; many C790s default to 2-lane, which caps you at 720p60. For reliable WFB-NG range, solid-state RF power matters more than CPU clock.

Frederik Handberg

@frederikhandberg 1791286722

𝗙𝗮𝘁𝗮𝗹 𝗮𝗰𝗰𝗶𝗱𝗲𝗻𝘁 𝗻𝗲𝗮𝗿 𝗞æ𝗿𝘃𝗲𝗷 𝗶𝗻 𝗛𝗲𝗱𝗲𝗻𝘀𝘁𝗲𝗱

The impact was so severe that the car's engine was completely ripped out of the engine bay and ended up on the roadside against a tree, several meters away from the vehicle itself. #press

Frederik Handberg

@frederikhandberg 1791284694

I just received my RC controller for the #drone that I’m building!

The left throttle-stick is not self-centering because it’s made for FPV racing. However, since I’m using ArduPilot, I don’t need throttle-stick (instead I need altitude).

Therefore, I purchased a kit from Jumper-RC that allows me to change the stick to self-center when releasing.

Frederik Handberg

@frederikhandberg 1791278117

Male driver killed in solo-crash in Hedensted. #press