Flash Forward is a show about possible (and not so possible) future scenarios. What would the warranty on a sex robot look like? How would diplomacy work if we couldn’t lie? Could there ever be a fecal transplant black market? (Complicated, it wouldn’t, and yes, respectively, in case you’re curious.) Hosted and produced by award winning science journalist Rose Eveleth, each episode combines audio drama and journalism to go deep on potential tomorrows, and uncovers what those futures might re ...
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#667 – Long Distance with CNLohr-a
MP3•Episode home
Manage episode 419839318 series 30867
Content provided by The Amp Hour (Chris Gammell and David L Jones), The Amp Hour (Chris Gammell, and David L Jones). All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by The Amp Hour (Chris Gammell and David L Jones), The Amp Hour (Chris Gammell, and David L Jones) or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
Welcome back, CNLohr!
- CNLohr was on the last episode talking about the CH32V003 part and the CH32V003fun library
- Charlieplexed errings
- Fast iteration
- Lohr-a…LoRa…get it?
- LoRa
https://www.youtube.com/watch?v=eIdHBDSQHyw
- Started in January 2024 with discussions with mustardtiger / Frank
- Charles had done Wifi long range before
- Also FM from ATTINY85
- Ethernet + AM
- Radio signals without radios
- USB
- Harmonics
- LolRa
- Upchirps / downchirps
- 903.825 – 903.975 mhz
- Michael Ossmann talk
- LoRa doesn’t do code matching
- JP Norair talking about LoRaWAN / DASH7
- Tool / emulator for the airwaves
- 3 lines of the repo
- Tool to create tables
- There are two 2 lookup tables (up and downchirps)
- Table is different for differnet spreading factors and base frequencies
- Andreas Spiess LoRa/LoRaWAN distance attempts
- Spreading Factor — can’t past SF10 on this setup for unknown reason
- AirSpy
- Matt Knight
- LoRaWAN — protocol vs network
- The Things Network / Helium
- Activation by personalization
- Nesting dolls of encryption
- New parts CH32V002 (also, -005, -006. -007)
- Charles is excited about the op amp on the CH32V006 that has 64 MHz GBW
- CH32V203 – 144 MHz – $0.24, has usb xcvr
- CH32X035 is self clocking – best low cost option for USB
- All are supported in library now
- Community – CNLohr discord
- Porting examples for the parts using the technical reference manual
- MNIST database – handwriting recognition system
- Announcement post on CNX about the new parts
- It’s possible to hook up parts directly through the 1 pin SWIO, so you can hot-load firmware
- Writing code onto a “scratch pad”
- Want to see more CNLohr experiements online?
- Youtube.com/cnlohr
- discord: cnlohr reach out for invite
- Github
401 episodes
MP3•Episode home
Manage episode 419839318 series 30867
Content provided by The Amp Hour (Chris Gammell and David L Jones), The Amp Hour (Chris Gammell, and David L Jones). All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by The Amp Hour (Chris Gammell and David L Jones), The Amp Hour (Chris Gammell, and David L Jones) or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://player.fm/legal.
Welcome back, CNLohr!
- CNLohr was on the last episode talking about the CH32V003 part and the CH32V003fun library
- Charlieplexed errings
- Fast iteration
- Lohr-a…LoRa…get it?
- LoRa
https://www.youtube.com/watch?v=eIdHBDSQHyw
- Started in January 2024 with discussions with mustardtiger / Frank
- Charles had done Wifi long range before
- Also FM from ATTINY85
- Ethernet + AM
- Radio signals without radios
- USB
- Harmonics
- LolRa
- Upchirps / downchirps
- 903.825 – 903.975 mhz
- Michael Ossmann talk
- LoRa doesn’t do code matching
- JP Norair talking about LoRaWAN / DASH7
- Tool / emulator for the airwaves
- 3 lines of the repo
- Tool to create tables
- There are two 2 lookup tables (up and downchirps)
- Table is different for differnet spreading factors and base frequencies
- Andreas Spiess LoRa/LoRaWAN distance attempts
- Spreading Factor — can’t past SF10 on this setup for unknown reason
- AirSpy
- Matt Knight
- LoRaWAN — protocol vs network
- The Things Network / Helium
- Activation by personalization
- Nesting dolls of encryption
- New parts CH32V002 (also, -005, -006. -007)
- Charles is excited about the op amp on the CH32V006 that has 64 MHz GBW
- CH32V203 – 144 MHz – $0.24, has usb xcvr
- CH32X035 is self clocking – best low cost option for USB
- All are supported in library now
- Community – CNLohr discord
- Porting examples for the parts using the technical reference manual
- MNIST database – handwriting recognition system
- Announcement post on CNX about the new parts
- It’s possible to hook up parts directly through the 1 pin SWIO, so you can hot-load firmware
- Writing code onto a “scratch pad”
- Want to see more CNLohr experiements online?
- Youtube.com/cnlohr
- discord: cnlohr reach out for invite
- Github
401 episodes
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