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Creating VintageCell: Nerves, PCBs, and GenStateMachine with Bryan Green
Today on Elixir Wizards, Bryan Green shares how he transformed a vintage 1930s rotary phone into a fully functional cell phone using Elixir, Nerves, and a mix of hardware components.
Bryan shares the highs and lows of his project, from decoding rotary dial clicks to troubleshooting hardware issues with LED outputs. He explains why Nerves was the perfect fit for this project, offering SSH access, over-the-air updates, and remote debugging. You’ll also hear how Elixir’s concurrency model helped him manage hardware inputs and outputs efficiently using GenStateMachine and Genservers.
Elixir and Nerves really shine when modeling real-world systems. Bryan dives into how he used a finite state machine to track the phone’s states and handled inputs from the rotary dial and hook switch via GPIO.
For hardware enthusiasts, Bryan’s advice is to embrace this “golden age” of DIY electronics. Whether you're experienced with embedded systems or just curious on where to start, Bryan's VintageCell can inspire you to tinker with a hardware engineering project.
Key topics discussed in this episode:
Links mentioned:
Vintage Cellphone: Bridging the Past and Future with Elixir
Seven Languages in Seven Weeks https://pragprog.com/titles/btlang/seven-languages-in-seven-weeks/
Seven More Languages https://pragprog.com/titles/7lang/seven-more-languages-in-seven-weeks/
Node.js https://github.com/nodejs
https://nerves-project.org/
https://www.arduino.cc/
Adafruit Circuit Playground https://www.adafruit.com/category/965
Adafruit 3D Printed Star Trek Communicator https://learn.adafruit.com/3d-printed-star-trek-communicator
Adafruit FONA 3G Cellular + GPS Breakout https://learn.adafruit.com/adafruit-fona-3g-cellular-gps-breakout/overview
https://github.com/elixir-circuits/circuits_gpio
Nerves SSH https://hex.pm/packages/nerves_ssh
OTA (over-the-air) Updates with NervesHub https://www.nerves-hub.org/
https://github.com/kicad
Waveshare 4G Hat for Raspberry Pi https://www.waveshare.com/sim7600e-h-4g-hat.htm
https://hexdocs.pm/gen_state_machine/GenStateMachine.html
https://hexdocs.pm/elixir/GenServer.html
https://www.sparkfun.com/
https://www.digikey.com/
USB-C Gadget Mode with Nerves https://github.com/nerves-project/nerves_system_rpi4/issues/18
https://livebook.dev/
https://codestorm.me/
https://github.com/codestorm1/vintage_cell/
Special Guest: Bryan Green.
View all episodes
By SmartLogic LLC
4.9
2222 ratings
Today on Elixir Wizards, Bryan Green shares how he transformed a vintage 1930s rotary phone into a fully functional cell phone using Elixir, Nerves, and a mix of hardware components.
Bryan shares the highs and lows of his project, from decoding rotary dial clicks to troubleshooting hardware issues with LED outputs. He explains why Nerves was the perfect fit for this project, offering SSH access, over-the-air updates, and remote debugging. You’ll also hear how Elixir’s concurrency model helped him manage hardware inputs and outputs efficiently using GenStateMachine and Genservers.
Elixir and Nerves really shine when modeling real-world systems. Bryan dives into how he used a finite state machine to track the phone’s states and handled inputs from the rotary dial and hook switch via GPIO.
For hardware enthusiasts, Bryan’s advice is to embrace this “golden age” of DIY electronics. Whether you're experienced with embedded systems or just curious on where to start, Bryan's VintageCell can inspire you to tinker with a hardware engineering project.
Key topics discussed in this episode:
Links mentioned:
Vintage Cellphone: Bridging the Past and Future with Elixir
Seven Languages in Seven Weeks https://pragprog.com/titles/btlang/seven-languages-in-seven-weeks/
Seven More Languages https://pragprog.com/titles/7lang/seven-more-languages-in-seven-weeks/
Node.js https://github.com/nodejs
https://nerves-project.org/
https://www.arduino.cc/
Adafruit Circuit Playground https://www.adafruit.com/category/965
Adafruit 3D Printed Star Trek Communicator https://learn.adafruit.com/3d-printed-star-trek-communicator
Adafruit FONA 3G Cellular + GPS Breakout https://learn.adafruit.com/adafruit-fona-3g-cellular-gps-breakout/overview
https://github.com/elixir-circuits/circuits_gpio
Nerves SSH https://hex.pm/packages/nerves_ssh
OTA (over-the-air) Updates with NervesHub https://www.nerves-hub.org/
https://github.com/kicad
Waveshare 4G Hat for Raspberry Pi https://www.waveshare.com/sim7600e-h-4g-hat.htm
https://hexdocs.pm/gen_state_machine/GenStateMachine.html
https://hexdocs.pm/elixir/GenServer.html
https://www.sparkfun.com/
https://www.digikey.com/
USB-C Gadget Mode with Nerves https://github.com/nerves-project/nerves_system_rpi4/issues/18
https://livebook.dev/
https://codestorm.me/
https://github.com/codestorm1/vintage_cell/
Special Guest: Bryan Green.
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