Battery knowledge · Data, communication and electronics
UART
The simple asynchronous serial link found on almost every microcontroller: one transmit and one receive line, no shared clock, both ends set to the same baud rate such as 115 200 bit/s. BMS boards use it for debugging and firmware loading and, through an RS-232 or RS-485 transceiver, over longer cables.
- Also called
- universal asynchronous receiver-transmitter, serial port, TTL serial
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 UART alongside Firmware in this context. The software that runs on a BMS or charger controller. Its version decides how SOC, limits and faults behave, so it is tracked like a part number, updated by flashing over CAN or over the air, and recorded in the battery passport.
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.