/Arduino-Dell-Charger-Emulator

Primary LanguageC++

Dell Charger EPROM Emulator using Arduino

  • Simple promgram used to emulate OneWire DS2502 EPROM with content of a 45W Original Charger (Readed from Vostro thin pin notebook)
  • Tested on Arduino Pro micro
  • Maybe also work on ATTINY85 smal MCU

Sequence Diagram

Notebook->Notebook: Charger is connected 
Notebook->Charger: Power up One Wire bus 
Note right of Charger: Prepare Emulated One Wire and EPROM with Data 
Notebook->Charger: RESET Signal 
Notebook->Charger: cmd 0xCC (skip Rom) 
Notebook->Charger: cmd 0xCF 0x00 0x08 (Read content 0x0008) 
Note right of Charger: Prepare CRC 
Charger->Notebook: response CRC 
Charger->Notebook: send EPROM Data 
Charger->Charger: Wait RESET signal