User's Manual

PULSE915-LRW_User_Manual
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Each pulse of 1 liter of water produces 1 pulse, that is, 1 m
3
of water meter will produce
1000 pulses, then the pulse constant should be 1000 (if the pulse constant is reset, the
initial reading must be reset).
 Parameter configuration can be manually entered through the serial port debugging
assistant, or can be carried out using the PC software provided by Friendcom.
5 Parameters Configuration
5.1
Parameters Configuration
Before using the PULSE915-LRW terminal, we need to configure some parameters, such as
initial index, pulse constant, RTC real-time clock, pulse type (single or double pulse), sensor
type (hall or reed switch) and other LoRaWAN information. The configuration mode supports
wired and wireless. For detailed operation steps, users can refer to
Friendcom_PULSE915-LRW_Configuration_User_Manual.
5.1.1 Wired Configuration Mode
Connect this product to the USB port of computer through the USB to TTL interface adapter.
The ports that need to be connected to this product are as follows:
Table 5- 1 Device to USB wiring
Device port name
Function definition
USB to TTL Adapter
Remarks
IO1-R
Data receive
RxD
TTL Level 0-3.6V
IO1-T
Data transmit
TxD
TTL Level 0-3.6V
GND
Power ground
GND
5.1.2 Wireless Configuration Mode
Plug the wireless USB adapter FC-714-USB into your computer and install the correct driver
to configure the product wirelessly.