Turn your old Fernsprechtischapparat FeTAp 611 (or any other rotary dial phone) into a mobile phone.
- FeTAp 611 rotary dial phone
- Arduino Pro Mini
- sim800l GSM module
- TP4056 lithium battery charger module with protection
- 18560 type lithium battery
- 3V-35V step up boost converter
- L293D H-Bridge
- Rotary-Dial library
- Arduino sketch from this repository