amodem
hologram-python
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amodem | hologram-python | |
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6 | 9 | |
919 | 87 | |
- | - | |
4.6 | 6.5 | |
3 months ago | 4 months ago | |
Python | Python | |
GNU General Public License v3.0 or later | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
amodem
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Replacement PCB Replicates Early 80s Modem
This will get you started:
Tony Fisher wrote V.32 soft modem stack for SGI Indy back in 1996. York University couldnt handle hosting whole 8 megabytes of his stuff https://www.cs.york.ac.uk/news/fisher/home-page but at least they had the decency to upload it to github instead of just deleting https://github.com/university-of-york/cs-www-users-fisher/tr... Randy Rossi rewrote this project and got working V.21/23 https://github.com/randyrossi/fisher-modem
Fabrice Bellard, because of course he did :), implemented his own version all the way to V.34 with parts of V.90 https://bellard.org/linmodem/
V.21 modem implemented in Gnu Radio https://web.archive.org/web/20170627151353/http://aaronscher...
amodem - good source of ready made modulation implementations https://github.com/romanz/amodem
minimodem- simple radio link FSK modem https://github.com/kamalmostafa/minimodem
audsl - leased line project, not compatible with standard modems https://www.araneus.fi/audsl/ but might give some ideas.
- Basic binary data via RTL-SDR?
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Is there a standard for transmitting unencrypted plain text data? (Strings)
This one is excellent, you can transmit and receive data as audio OFDM : https://github.com/romanz/amodem You will probably need to pipe it to a modulator for RF transmission.
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Internet/TCP socket data over SDR?
https://github.com/romanz/amodem is the tool i used to wrap netcat data into.
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How to convert .wav to .iq file?
You need to "encode" it in some way; https://github.com/romanz/amodem can help.
- Show HN: I made a tool to communicate data using the PC speaker
hologram-python
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OVMS and 2023 Niro
OVMS is a not cheap module. It comes with a hologram.io SIM card, but you can use any data-only LTE plan. Cost for the module is over $250, and then you'll have to pay somewhere south of $5/mo for a data plan if you go with hologram.io.
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App charge status stuck on 'loading'/'updating' message. any ideas?
An LTE plan from hologram.io is a few bucks a month... and i'd gladly pay it and not give my money to OnStar's broken stuff :-).
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How Do I Make Another Electronic Device Communicate With My App?
You could build out something using Arduino or similar. It's a very heavy lift, especially if you don't have experience using Arduino/similar build-your-own-hardware stuff. But you can find an Arduino as a processor, a GPS module, an IoT/Cell data module, and either battery or some wiring to plug it into another power source, and write your own custom code that will turn the unit on and report location at an interval of your choosing. I'm guessing that'd cost roughly $50-150 for initial hardware depending on options, and you'd need to pair it with monthly cell data service, like hologram.io.
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solar + LTE tide sensor
I want to lead off with a big shout-out to Botletics and their (his?) SIM7000 LTE CAT-M1 shield. From the beginning I knew I was going to need wireless connectivity and that WiFi was not going to reach. I considered Blues Wireless, but ultimately went with Botletics + hologram.io and I'm extremely glad I did. I plugged it in, I lightly modified the example code (it was pretty close to what I needed already, I basically just took out the GPS reading and replaced it with an averaged HC-SR04 ultrasonic sensor reading) and it just worked.
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Why Helium compares to companies having nothing in common, and completely different business model, by make up some points the other companies dont care
Companies use hologram.io sim cars in their devices and trackers and no consumer knows this unless they take the device apart and inspect the sim car and look up what the logo is.
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Best companies for full-time RV living?
hologram.io
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Controlling my Jetson in a remote location
If you can't get Ethernet then Cellular modem is best. For devices I rarely need to talk to I use hologram.io and it costs me a few dollars/year (under $10USD). Otherwise get a real cellular plan. Hologram has some nice software to make it easy to communicate.
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Sim card and arduino uno module
i will be trying the mkr nb 1500 with the hologram.io sim card. hologram has a pilot program that includes 1mb of free data per month which should cover texts that aren't sent all the time. i mention this incase anyone else stumbles on this in search of a similar solution.
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Ask HN: Is anyone working on a open hardware 3G/4G dongle?
Depends how open you mean. For a lot of hobbyists and integrators, this works:
https://github.com/hologram-io/nova-hardware
And run this on a Pi:
https://github.com/hologram-io/hologram-python
If you need something one layer deeper on the module or chipset level, there’s not really a lot out there.
What are some alternatives?
ggwave - Tiny data-over-sound library
hackrf - low cost software radio platform
chirppy - Play chirp.io chirps with Python
pinephone_modem_sdk - Pinephone Modem SDK: Tools to build your own bootloader, kernel and rootfs
beets - music library manager and MusicBrainz tagger
interfax-python - Fax send and receive in Python with the InterFAX REST API
RadioHead - Version of RadioHead library for Teensy boards
pySerial - Python serial port access library