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Temp. + Humidity LoRaWAN
Please check out our new sensor to measure temperature, humidity and air pressure:
ment Sensor (LoRaWAN)
Overview
Order number: 8000004
The Lobaro LoRaWAN Humidity Sensor AM2305-LoRaWAN is a battery powered radio transmitting
sensor device that takes measurements at configurable intervals. Because of its low power consumption
it can operate for multiple years with standard AA batteries. The LoRa radio technology allows it to take
measurements in places that are hard to reach, and in its water prove casing it can be installed outdoors.
The device uses a AM2305 digital relative humidity and temperature sensor probe (also known as
RHT05 or DHT44). It is powered by the base device and communicates via a one-wire connection.
Please read the manual carefully before operating the device. A safe operation of the device
is only possible if you follow the guides provided in this manual. Using the device differently
than intended by Lobaro my cause damage to people, the environment, or the device.
The Device
Operating the Humidity Sensor
The RHT05 sensor probe must be attached to the device on the external socket. Insert two 1.5V AA
batteries into the slots. When the device starts, its LED flashes once. If it does not start, check that your
batteries are still good and inserted the correct way. You can refer to the picture above to check that
everything is connected as it should be.
When the device is set up correctly and running, put the lid on the base and fasten it from the back using
the supplied screws. Watch out that the cables are save inside the box and do not get stuck in the
casing, or you might damage the cables and allow water to enter the casing. This can cause damage to
the device!
Always close the lid so that the socket for the probe is on the opposing side of the antenna (picture
above, sensor probe on the left, antenna on the right). This way there will be less interference on the
antenna and you will get the best connection possible.
Environ
Overview
The Device
Operating the Humidity Sensor
Work Cycle
Configuration
LoRaWAN Data Upload
Formats
Data Packet
Sensor Specification
Technical characteristics
Target Measurement / Purpose
PDF Documentation
Parser
Batteries
Installation
Initial Phase
LoRaWAN Join
Phase
Data Collection Phase
Data Transfer Phase
Sleep Phase
The Lobaro
Maintenance Tool
Connecting the USB
config adapter
System Parameters
LoRaWAN
Parameters
Sensor configuration
parameters
Cron expressions
Configuration and
battery life
Status Packet
The Things Network
(JavaScript)
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Summary of Contents for Lobaro AM2305-LoRaWAN
- Page 1 Please read the manual carefully before operating the device. A safe operation of the device is only possible if you follow the guides provided in this manual. Using the device differently than intended by Lobaro my cause damage to people, the environment, or the device. The Device Operating the Humidity Sensor The RHT05 sensor probe must be attached to the device on the external socket.
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Page 2: Work Cycle
AA cells of the types Alkali-Manganese (1.5V, LR6) and LithiumIron-Sulphide (1.5V, FR6) are allowed to be inserted in the device. Lobaro recommends the use of FR6 batteries like the Energizer Ultimate Lithium over LR6 types because of the higher capacity and better discharge properties. - Page 3 . Normally your default browser should be opened with this URL automatically after tool startup . Even remote configuration and logobservation over the Internet is possible, e.g. having a Raspberry PI via USB connected to the Lobaro device and accessing the maintenance tool from a remote machines browser over the Internet.
- Page 4 System Parameters After being successfully connected to the hardware using the Lobaro Maintenance Tool you can press 'Reload Config' in the 'Configuration' tab to read the current configuration from the device. For every parameter a default value is stored non volatile inside the hardware to which you can revert using the 'Restore default' button in case anything got miss configured.
- Page 5 Standard Lobaro devices typically do not need to know the real time for proper operation. All times are relative to the initial time when batteries are inserted. If needed by the target application Lobaro can deliver on request special hardware support for keeping data acquisition intervals based on a real time clock which stays in sync with the real time.
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Page 6: Data Packet
Error indicator. 0=success, 1=error 0 success humidity uint16 Rel. humidity 1/10 % 318 31.8 % temperature int16 Temperature in 1/10 °C -105 -10.5 °C Sensor Specification Technical characteristics Product Type name AM2305-LoRaWAN Description LoRaWAN Humidity Sensor RF transceiver Chipset Semtech SX1272... - Page 7 Frequency Range 863 to 870 MHz TX Power 14 dBm Typically RF range Ideal RF range 10km (free line of sight) LoRa communication LoRaWAN Protocol LoRaWAN 1.0.1, Class A, EU868 Activation method Over-the-air activation (OTAA) Activation by personalization (ABP) Encryption AES128 Power Power supply...
- Page 8 The Things Network (JavaScript) * TTN-compatible data decoder for the Lobaro LoRaWAN Humidity Sensor. function readVersion(bytes) { if (bytes.length<3) { return null; return "v" + bytes[0] + "." + bytes[1] + "." + bytes[2]; function int40_BE(bytes, idx) { bytes = bytes.slice(idx || 0);...
- Page 9 function port2(bytes) { return { "port":2, "timestamp": int40_BE(bytes, 0), "error":!!(bytes[1]&0x01), "humidity":int16_BE(bytes, 6)/10.0, "temperature":int16_BE_1c(bytes, 8)/10.0 function Decoder(bytes, port) { switch (port) { case 1: return port1(bytes); case 2: return port2(bytes); return {"error":"invalid port", "port":port};...