_hot_ — Battery+eeprom+works+327+full+free

Next time you design a battery-powered gadget, don't just add a big battery. Add a 32768 Hz crystal and an EEPROM. Your users (and your battery replacement interval) will thank you.

The (often branded as VAG327 or simple 327) is a low-cost OBD2 to USB/Bluetooth interface based on the FTDI or CH340 chipset. It is legendary for its compatibility with diagnostic software like VCDS Lite , ELM327 , and open-source tools. However, its internal EEPROM stores USB identifiers and configuration bits. A battery surge can wipe this EEPROM, rendering the device unrecognizable to a PC. battery+eeprom+works+327+full+free

: Bypassing safety flags on damaged cells can cause thermal runaway. Next time you design a battery-powered gadget, don't