YO Pulse

Overview

Description

The YO Pulse is a powerful and adaptable device designed for monitoring states, detecting alarms, and counting pulses in automation systems. With six configurable inputs, it supports normally open, normally closed, and pulse counting modes, making it ideal for diverse applications like state monitoring and pulse data collection from devices such as water meters. To suit specific system requirements, the YO Pulse is available in two versions: wet contact (potential) or dry contact (potential-free). Customers can choose their preferred configuration at the time of ordering. For convenience, each device is clearly labeled as POTENTIAL or POTENTIAL FREE, ensuring seamless integration into your setup.

Figure 1. Device top view

Device sticker placed on the right side of the device enclosure contains information about model, version, LoRaWAN region and 3 parameters important in case of device identification and configuration:

• DEV EUI: 64-bit unique device identifier in a LoRaWAN network,
• DEV ADDR: address required to connect via ABP activation type to LoRaWAN,
• BLE MAC: Bluetooth physical address.

Figure 2. Device sticker

Features

• LoRaWAN Technology: Available in multiple versions with LoRa radio configured for various regions and ISM frequency bands (e.g., EU868, US915, AU915), it is compatible with both private and public LoRaWAN networks and supports connections via ABP (Activation by Personalization) or OTAA (Over-The-Air Activation).
• Bluetooth Low Energy (BLE): Enables easy configuration through a user-friendly JSON data exchange format, supports firmware updates via OTA (Over-the-Air), and boasts very low energy consumption.
• Temperature: Measures temperature within the device enclosure, providing valuable insights into the surrounding environment.
• Counter: Counts pulses cyclically with time interval defined by LoRa sending interval.
• Open/Closed Contact: Displays the state of contacts in two separate charts: one for Normally Open (NO) and another for Normally Closed (NC) configurations.
• Wet Contact (Potential): Provides its own voltage or current for signaling, making it ideal for setups where a powered output is needed for direct connection to other devices or systems. It simplifies wiring and eliminates the need for an external power source for signal detection.
• Dry Contact (Potential-Free): Designed for systems requiring isolation or external power sources, this version acts as a mechanical switch, relying on the connected device to supply the necessary voltage or current. It's perfect for integration with circuits that require flexibility or isolation from the signaling device.
• Yosensi Management Platform: Provides a web tool for device configuration, firmware updates, and infrastructure management. Enables comprehensive monitoring of transmitted data and easy device management.
• Yosensi Mobile App: Effortlessly manage devices with features to register new ones, configure settings, perform firmware updates, view/send logs, and test LoRaWAN connectivity. Learn more in our detailed Yosensi App blog post.

Specifications

Physical

Figure 3. Dimensions of the device

Device

Attribute	Description
Dimensions	Height: 90 mm Width: 71.20 mm (4-pole) Depth: 58 mm
Colour	Light Grey
Mounting method	35 mm DIN rail standard
Enclosure material	Polycarbonate
Level of protection	IP20, UL94-VO
Weight	151 g

Operating Conditions

°C°F

Attribute	Description
Temperature	0°C to 70°C
Humidity	0 to 90%
Placement	Indoor use
Power supply	6-30 V DC 5-21 V AC
Power consumption	Typical: 20 mA DC (12 V DC) Maximum: 110 mA DC (12 V DC)

Measured Values

°C°F

Parameter	Measurement range	Accuracy
Temperature (internal)	-40°C to 125°C	±0.2°C (5°C to 60°C)
Counter	0-32767 ( int16 )	-
Open contact	0-1	-
Closed contact	0-1	-

Controls and Indicators

LED Status Indicator

YO Pulse communicates its current behaviour to the user by RGBW LED placed on the top.

Diode statuses interpretation

Behavior	Colour	Status
Single flash	Green	General: device is working correctly (power and memory).
Single flash	Red	General: device is working incorrectly (power and memory). LoRaWAN communication: failed to receive an acknowledgement from LoRaWAN Server within specified timeout.
Single flash	White	LoRaWAN communication: LoRaWAN frame sent / confirmation from LoRaWAN Server after receiving the frame.
Slow flashing	Blue	BLE communication: connection to the device via BLE (configuration).
Rapid flashing	Blue	LoRaWAN communication: connecting to LoRaWAN network.
Rapid flashing	Orange	Pulse counting: pulse counter for sending signals to the network.

Buttons

The YO Pulse features a reset button located on the PCB, labeled "Reset". To reboot the device, simply press the button briefly.

Installation

Package Contents

1. Device.
2. Warranty card.

Safety Precautions

NOTE

Go to the Safety Precautions section to see important information on handling, disposal and maintenance.

Installation Guide

1. Mount the device on a 35 mm DIN rail.

Figure 4. Device mounting instructions

2. Connect the inputs to the individual channels of the device according to the polarity shown on the enclosure label.

Figure 5. Connect the inputs to the individual channels of the device

3. Screw the power supply wires to the device regardless of polarity (6-30 V DC, 5-21 V AC).

Figure 6. Input cable passing through the cable gland instructions

4. After connecting the wires, diodes should behave as it is described on LED Status Indicator.

Figure 7. Final look of the device after connecting wires

Configuration

Configurable Parameters

A few parameters must be set before sending data to the gateway. The default firmware is configured in OTAA mode with predefined deveui, appkey (OTAA) and appskey, nwkskey (ABP).

Configuration of the device is stored in a JSON file divided into the following sections:

• info (generic, read only): information about the device,
• lorawan (generic): configuration data for LoRaWAN connection,
• ble (generic): Bluetooth settings,
• device (dynamic): individual configuration for a specific device (this section’s structure differs for each device),

Sample configuration file for the YO Pulse device.

{
	"info": {
		"devmodel": "LNDI",
		"fwver": "3.7.1",
		"loraradio": "SX1261",
		"lorawanver": "1.0.2",
		"loraregion": "EU868",
		"blemacaddr": "0123456789ab"
	},
	"lorawan": {
		"subband": 1,
		"nwktype": "public",
		"acttype": "otaa",
		"otaa": {
			"deveui": "0123456789abcdef",
			"appeui": "fedcba9876543210",
			"appkey": "000102030405060708090a0b0c0d0e0f",
			"trials": 3
		},
		"abp": {
			"devaddr": "01234567",
			"nwkskey": "0123456789abcdef0123456789abcdef",
			"appskey": "000102030405060708090a0b0c0d0e0f"
		}
	},
	"ble": {
		"power": 0,
		"interval": 1600
	},
	"device": {
		"measinterval": 300,
		"debouncetime": 25,
		"ch1func": "contact_NC",
		"ch2func": "contact_NC",
		"ch3func": "contact_NC",
		"ch4func": "counter",
		"ch5func": "counter",
		"ch6func": "counter",
		"sendimmediatechange": "disable",
	}
}

OTAA & ABP

OTAA	ABP
Device EUI	Device Address
Application EUI	Network Session Key
Application Key	Application Session Key
Number of Trials

Generic Parameters

Generic Parameters for Yosensi Devices.

Click here to see the generic parameters for Yosensi devices.

Parameters

Device Parameters

Name	Description	Possible Values	Default Value	Read/Write
measinterval	Measuring and sending interval LoRa [s]	601-999999	300	R/W
debouncetime	Delay for pulse counting preventing from contact vibration of the device [ms]	1-1000	25	R/W
chxfunc	Channel with periodic counters where x stands for the number from 1 to 6	contact_NO, contact_NC, counter	counter	R/W
sendimmediate change	Enable or disable feature of queue to payload each contact NO/NC change	disable, enable	disable	R/W
OTAA minimum 60 [s], ABP minimum 120 [s]

Parameters description

• nwktype: used for setting the device in public or private network type.
• acttype: used for setting the device in ABP or OTAA mode.
• deveui, … , appskey: predefined addresses and keys, these parameters are generated using multiple IDs specific to the particular MCU and are unique for each device. They can be changed if needed.
• interval: determines the interval of sending broadcast packets, used to connect to every BLE receiver around the device.
• subband: used for setting the communication frequency sub-band in LoRaWAN.
• measinterval: measurement interval [s] between sending LoRa packets.
• debouncetime: delay from contact vibration.
• ch1func…ch6func: numbers of channels for counting periodic pulses.
• sendimmediatechange: feature that enables instant queueing of state changes to payload. Works for contact type: contact_NO and contact_NC.

Downlink message

You can remotely adjust certain parameters by sending a downlink message through our platform. Simply navigate to the "COMMANDS" section for the selected device.

Update Measurement Interval

It is possible to change the measurement interval (measinterval) by using downlink. Information about changing the parameter will be sent from the server via the gateway.

Example of Downlink Message:

• Prefix: 0x03
• Measurement Index: 0x00
• Data (up to 4 bytes in hex): 0258

Sample Downlink: 0x03000258 - Sets a measurement interval of 600 seconds (10 minutes).

Connecting Nodes to the Network with Yosensi Management Platform

Click here to see how to connect a node using the Yosensi Management Platform.

Node Configuration with Yosensi Management Platform

See how to configure a node in Yosensi Management Platform

Node Configuration via Yosensi Mobile Application

Check how to adopt and configure a node via the Yosensi App.

Frequency Plan

Take a look at the list of frequency plans used in Yosensi.

Payload Description

This datasheet describes the payload protocol developed by Yosensi for communicating with our devices.

Payload Decoder

If you want to connect to your own server, it is necessary to decode the specific payload for each device. To accomplish this, a payload decoder is required, which can be downloaded using the following link: Payload decoder. You can also use our integrated Payload Decoder here. Extended documentation of the protocol can be found in the Payload description on our website.

Compliance Statements

NOTE

To view or download the Declaration of Conformity for YO Pulse go here