Note that other Bluetooth modules are not compatible. For best reception, mount the module high, ideally
away from metal. Do not mount it inside of a metal enclosure. The Bluetooth module may be left connected
to the BMS for long periods of time. It will go into a deep sleep mode when not in use.
2.4.7.1 USB Interface
The USB interface is an optional accessory that may be used to interface the BMS to a personal computer, or
an embedded single-board computer (e.g. Raspberry Pi).
The following applications are known to support the USB interface:
Before plugging in the USB interface, install the applicable software (see table above). Do not run the
software just yet.
A virtual-COM port driver must be installed before the USB interface is plugged into the host computer. The
drivers can be found here:
● Windows: FTDI VCP drivers come pre-installed on recent versions of Windows. If not, the drivers may
be downloaded here: CDM21228_Setup.zip
● OS X: FTDIUSBSerialDriver_v2_4_4.dmg
● Linux: All Modern Linux kernels support the FTDI FT232RL out-of-the-box. No driver download is
necessary.
Once the driver has installed successfully, the USB interface can be connected. Plug the 4-pin connector into
the BMS. The BMS must be connected to the battery, with the balance lead connected in order for the USB
module to operate. Plug the included USB cable to the other side of the black plastic JBD-UART-TOOLS case.
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