VERVIEW 2.1. Sensor Overview The wireless sensors designed and manufactured by Radio Bridge provide full sensor to cloud solutions for Internet of Things (IoT) applications. The ultrasonic level sensor provides high accuracy ultrasonic proximity detection and ranging in air. If the measured distance rises above or falls below the configured thresholds, an alert is sent over the wireless network.
IRELESS LTRASONIC EVEL ENSOR 3. T ECHNICAL PECIFICATIONS 3.1. Absolute Maximum Ratings Table 4 Absolute Maximum Ratings Parameter Rating Units Operating ambient temperature -40 to +70 °C Storage ambient temperature -40 to +100 °C 4. M OUNTING The ultrasonic sensor can measure distances between 500mm to 10m and the sensor must be mounted such that the required distances are within that range.
If the standard Radio Bridge console (console.radiobridge.com) is not used, refer to this section to decode the sensor data and configure the sensor through downlink messages. 7.1. Common Messages There are common messages across all wireless sensors that are defined in the document “Common Sensor Messages”...
IRELESS LTRASONIC EVEL ENSOR 7.2. Uplink Messages The uplink message (sensor to web application) specific to the sensor is defined in following table. The common uplink messages are not included in this section (see common messages document). Table 5 Uplink Message 0x10: Ultrasonic Level Detection Event Byte Description Ultrasonic Level Event Payload (see Ultrasonic Level Event...
IRELESS LTRASONIC EVEL ENSOR The current distance field in the ultrasonic level event uplink message is the current distance measurement in millimeters with a range of 0-9999 (0-10 meters). The distance is automatically calibrated by the device. 7.3. Downlink Messages The downlink message (web application to sensor) specific to the sensor configuration is defined in following table.
IRELESS LTRASONIC EVEL ENSOR Table 8 Upper distance threshold in mm, upper byte. Default 1,000mm Downlink Configuration Upper distance threshold in mm, lower byte Message for Threshold Mode The upper and lower distance thresholds are unsigned values with units of one millimeter.
IRELESS LTRASONIC EVEL ENSOR changes 5mm from the last report. The distance increase and decrease are unsigned values with units in millimeters. Periodic reporting and hold time are described in the sections below. 7.3.3. Hold Time The purpose of the hold time is to add “debounce” or “hysteresis” to the sensor so that it does not send rapid events when the measurements are sitting close to the threshold.
IRELESS LTRASONIC EVEL ENSOR 7.3.4. Periodic Reports The ultrasonic level sensor can also send periodic updates, and this is defined in byte 1 of both modes. A setting of 0 will disable periodic reporting. The period is defined in 1 hour increments when the most significant bit is 0, and it is defined in 1 minute increments when the most significant bit is 1 as shown in the following table.
(2) this device must accept any interference received, including interference that may cause undesired operation. Per FCC 15.21, Changes or modifications not expressly approved by Radio Bridge could void authority to operate the devices. Sigfox RBS101, RBS104, and RBS105 sensors FCC ID: 2APNUSFM10R2...
UPPORT Radio Bridge offers free technical support at: https://support.radiobridge.com Radio Bridge also offers technical support plans and service packages to help our customers get the most out of their Radio Bridge products. ISCLAIMERS Information in this document is subject to change without notice and does not represent a commitment on the part of Radio Bridge.