Battery knowledge · Data, communication and electronics
1-Wire
A bus that needs only one data line plus ground, originally from Dallas Semiconductor, in which the data line also powers the small chips on it. Battery packs use it for identification chips that let a charger or host read the pack type and serial number and, in secure parts, an authentication response.
- Also called
- 1-Wire bus, one-wire interface, battery ID chip
Example
Data, communication and electronics: an example situation
2500 in a log might mean 25.00 °C, 2.5 V or raw counts. Units and scale must accompany the value.
Read 1-Wire alongside Battery authentication in this context. A check by which a host or charger confirms that a battery is genuine before using or charging it: a secure chip in the pack answers a random challenge with a response computed from a secret key, typically with SHA-256 or elliptic-curve cryptography. It keeps clones, with weaker cells and protection, out of phones, tools and medical devices.
Use in Lemonergy
Separate quantities from encoding and transport.
This is a reference concept. No executable Lemonergy block has been verified for this term.
References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- 3rd generation of the CAN data link layer
CAN in Automation, CAN Newsletter · 2020
Topic background · Classical CAN, CAN FD and CAN XL data-link concepts; publication describes the 2020 state.
- Getting Started with the BQ76925
Texas Instruments · 2019
Topic background · A concrete BMS analog front-end example: cell voltage, current, temperature measurement and MCU integration.