The 7bit AirPoint wireless standalone module is used to transmit climate parameters and discrete signals (with counting function) over the Lora radio channel. To receive this data, a 7bit AirGate must be used to convert the data received over the Lora radio channel from many AirPoint modules into MQTT protocol packets and pass them on to an MQTT broker (server) on the local network or the Internet.
7bit AirPoint
Wireless telemetry module
Applications
- Monitoring of climate and air quality parameters (temperature, humidity, CO₂ content) for offices, sports clubs, schools, hospitals, etc.
- Collecting telemetry data in housing and communal services
- Collecting telemetry data in greenhouses
- Connecting signals from remote systems and devices
Function overview
In general, the system consists of one or more wireless, stand-alone 7Bit Airpoint radio modules and 7Bit Airgate data gateway(s) that receive messages over the radio channel and transmit them to any upper-level system, such as a WebHMI, SCADA second or cloud-based IoT platforms such as : Amazon AWS, Microsoft Azure, etc., over a local network or the Internet using the MQTT protocol.
The module is powered by 3 ordinary AAA batteries (or microUSB) and can read the following parameters:
- 2 temperatures (built-in and/or external sensor)
- humidity (built-in) sensor
- CO2 (optional)
- 2 digital inputs that can operate in the following modes :
- state
- counting input
- alert
- built-in accelerometer
Data is transmitted at regular intervals, e.g. 15 minutes, except in alarm mode, when a signal on the digital input (or from the accelerometer) immediately triggers data transmission.
In order to save battery power, the main mode of operation of the device is the standby mode, when the processor consumes minimal power. At the signal of the internal timer, the device turns on, performs the necessary measurements or polls the digital bus, transmits the data to the Lora channel, and then goes into standby mode again. To test the module, a special button is provided on the printed circuit board, after pressing which the module performs these actions immediately. To identify data from multiple devices in the upper-level data collection system, the module adds its Id (hardware address) to the data packet.
| Supply | 3 AAA batteries or 5V external power supply |
|---|---|
| Data transfer | Radio channel 868 MHz, 25 mW, LoRa, built-in antenna |
| Digital inputs | 2 х DI, dry contacts |
| Counter inputs | 2 x CI, Each of the digital inputs counts pulses with a frequency of up to 10kHz) |
| Analog inputs | – |
| Interfaces | – |
| Protocol | – |
| Frequency of sending packets | By default: once every 15 minutes. When operating from an external source: 1 time per minute. |
| Typical battery life | ~ 50,000 packets (when sending data 4 times per hour, the operating time is approximately 2 years) |
| Lora signal reach | In the open air, up to 10 km.*** |
| Environmental | For indoor use, protection class IP 40 (optionally available in IP65 enclosure) |
| Temperature range | -40 + 85 °C when operating from an external source, 0 + 45 °C for batteries |
| Dimensions / Weight | 70 х 70 х 37 mm. / 80 g. |
| Operating conditions | 0°C – 55°C, 5 – 90% (w/o condensing) |
| Storage conditions | -25°C – 70°C, 5 – 95% (w/o condensing) |
- Fastest possible deployment of the data collection system
- Availability of diagnostic metrics for configuration
- Ready-made templates for adding to the WebHMI project
- Quick addition to Level2 by QR code