This LightningATM was built to distribute small amounts of BTC - obviously - it only accepts coins. It shall demonstrate the power of Bitcoins Lightning Network. A two cent coin is enough to buy some satoshis at the LightningATM.
A physical coin exchanged into bitcoin and send to your lightning wallet in seconds. Use this project to educate your family and friends or guests at your bitcoin meetup - a convenient and easy on-boarding process for people that are new to bitcoin.
Please be aware that this is a hobbyist project and it is not secure and reliable enough to withstand attacks. I discourage the use of this setup in a professional environment - but it's rather a good educational tool
There are currently two versions of the Lightning ATM. The large full version with a camera for scanning invoices and a button for acknowledgment and other functions. And there is the somewhat slimmed-down version for mobile use, the pocket version.
| Full Version | Pocket Version |
|---|---|
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Carry out the points step by step as described here. This is the quickest way to succeed. 😊
- voltage converter
- coin validator
- wiring
- sd card and wifi
- display
- edit config.ini
- debugging and tmux
- autostart
- aditional information and tips
- option: language
- option: button
- option: camera
- option: lockout relay
- option: RPi image from scratch
If you want to update your ATM with LNbits, see this guide: Update
More information of how to setup the LightningATM can be found here https://docs.lightningatm.me. Also join the Telegram group of LightningATM builders here https://t.me/lightningatm_building or contact 21isenough on Twitter (https://twitter.com/21isenough).
To see the Lightning ATM in action, check out this video LightningATM in action
- https://podcasts.apple.com/us/podcast/interview-with-21isenough/id1481514734?i=1000458712983
- https://blog.sicksubroutine.com/lightning-junkies-episode-021/
- http://bitcoin-turm.de/bturm29/
- https://www.atmmarketplace.com/articles/lightning-atm-lets-you-buy-itty-bitty-amounts-of-bitcoin/
- https://www.bitcoinmedia.id/atm-bitcoin-lightning-ini-adalah-prototype-pertama/
- https://twitter.com/CoinATMRadar/status/1202657309765357568?s=20
- https://www.hackster.io/news/lightningatm-distributes-small-amounts-of-btc-over-the-lightning-network-5e03347acd88
- https://criptonizando.com/2019/10/08/desenvolvedor-cria-caixa-eletronico-de-bitcoin-que-ate-amadores-podem-construir-usando-a-lightning-network/
- https://decrypt.co/10046/ightningatm-how-to-make-your-own-bitcoin-atm?utm_content=buffer7dcee&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer
- German Video: Tutorial - Bitcoin Lightning ATM - montieren und konfigurieren
- German tutorial for the pocket edition: Tutorial LightningATM - ereignishorizont.xyz
- Implement lndconnect
- Add "no wallet setup" warning at boot
- Implement LNURLProxyAPI
- Support for more Lightning implementations and wallets
- Try different way of detecting inserted coins (populating a list and setting a delimiter)
- PCB Board design (https://easyeda.com/, http://kicad.org/)
- 5V-12V step up transformer (http://www.electronics-lab.com/project/5v-to-12v-step-up-dc-dc-converter/)
- Solve security concerns in regards to lnurl (scan over the shoulder)
- Dashboard for settings (via mobile)
- Add second button and admin menu
- Add admin function only available through qr pass
- Run certain functions in threads
- Additional button for restart and shutdown
- Find solution to work without jumper cables
- Add encrypted partition with sensible data
- Add TOR support for LND calls
- Store data in database
- Add AP option for users to login into their wifis (https://github.com/21isenough/RaspiWiFi)
- 2 layer for coins to reject before accepted
- Update doc with new features, screens
- Check out BTCPay API to integrate backend
- Add coin return stopper to 3d design
- Try different e-ink screen
- Add a language file to change strings easily
- Write installations instructions (see docs.lightningatm.me)
- Rethink the design decisions in regards to hardware (https://www.arrow.com/en/products)
- Add encryption of admin.macaroon in idle mode
- Design ideas for case
- Slightly recline front board to the back, add immersion for camera
- Move scanning function into utils
- Move all display functions into display.py
- Implement lnurl with lntxbot
- Draw printer and boards in 3D (https://www.onshape.com/)
- Write list of all compatible wallets/qr qr_codes
- Test qr code on 2" eInk display (works)
- Research camera resolutions / qr code scanning
- Check if there's other zbar python libraries
- Change to wide angle camera
- Sort out scan errors
- QR code scan function
- Validate requested amount
- Reject to high amounts
- Add config file
- Add parts list to readme
- Ask for rescan of QR code
- Inform about failed scan
- Implement continuous QR Scan
- Lower case ln invoices
- Find a faster solution for QR scans (zbarcam)
- Organize todos better