2 layers38 × 38 mm

RS485 hardware
BatteryTesterEngineering/Neware_RS485
Neware BTS4000 series battery cyclers RS485 communication protocol, reverse engineered
21 partsGPL-3.0
Boards in 1 GitHub repository, designed in KiCad, that use the SP3077EEN-L by MaxLinear (-40℃~+85℃ 1 1 16Mbps 3.3V Transceiver SOIC-8 RS-485 / RS-422 ICs ROHS). See how each wires it, with its parts, size, README and files; the SP3077EEN-L’s symbol, footprint and pinout are on its own page.

BatteryTesterEngineering/Neware_RS485
Neware BTS4000 series battery cyclers RS485 communication protocol, reverse engineered