RAK12007 WisBlock Ultrasonic Sensor Module Datasheet
Overview
Description
RAK12007 is an ultrasonic sensor module based on the CS100, an industrial-grade ultrasonic distance measurement chip. This chip integrates ultrasonic transmitter, ultrasonic receiver, and digital processing circuits. The distance measurement result output is in the form of pulse width.
For an ultrasonic detector, there are two main parts: Emitter and Detector. The emitter transmits an ultrasonic sound wave, and the detector receives back the signal from the emitter reflected by an object. By calculating the travel time and the speed of sound, the distance of the object can be determined.
Features
- Detect Range: 2 cm to 4 m
- 3.3 V Power supply
- Standby Current: < 170 uA
- Chipset: angoSense CS100
- Module size: 25 x 48 mm
Specifications
Overview
Figure 1 shows the operation of the RAK12007 Ultrasonic Sensor Module.
Figure 2333: RAK12007 Ultrasonic Sensor OperationFigure 2 and Figure 3 display the RAK12007 front view (top) and bottom view, respectively.
Figure 2334: RAK12007 Top View
Figure 2335: RAK12007 Bottom ViewMounting
The RAK12007 WisBlock Ultrasonic Sensor Module can be mounted to the IO slot of the WisBlock Base board. Figure 4 shows the mounting mechanism of the RAK12007 on a WisBlock Base module.
Figure 2336: RAK12007 MountingHardware
The hardware specification is categorized into five parts. It shows the chipset of the module and discusses the pinouts and its corresponding functions and diagrams. It also covers the electrical and mechanical parameters that include the tabular data of the functionalities and standard values of the RAK12007 Ultrasonic Sensor Module.
Chipset
| Vendor | Part number |
|---|---|
| angoSense | CS100 |
Pin Definition
The RAK12007 WisBlock module has a 40-pin WisConnector that is compatible with the WisBlock Base IO Slot. The pin order of the connector and the pinout definition is shown in Figure 5
Figure 2337: RAK12007 WisBlock Ultrasonic Sensor Module Pinout- PD, ECHO, TRIG, 3V3_S (optional), 3V3 (default), and GND are connected to WisConnector.
- 3V3_S (optional) voltage output from the WisBlock Base that powers the RAK12007 module can be controlled by the WisBlock Core via WB_IO2 (WisBlock IO2 pin). This makes the module ideal for low-power IoT projects since the WisBlock Core can totally disconnect the power of the RAK12007 module.
Electrical Characteristics
Recommended Operating Conditions
| Symbol | Description | Min. | Nom. | Max. | Unit |
|---|---|---|---|---|---|
| VDD | Power supply for the module | 3.0 | 5.5 | V | |
| VPOR | Power-on reset voltage | 1 | 1.3 | V | |
| IDD | Capacitive Sensing Active | - | 500 | 750 | uA |
| IDSLEEP_3V | Deep Sleep State current | - | 5 | - | uA |
| ISTBY_DEF | Standby state active 70 ms cycle time | 120 | 170 | uA | |
| ISTBY_LP | Standby state active 140 ms cycle time | 50 | uA |
Mechanical Characteristics
Board Dimensions
Figure 6 shows the dimensions and the mechanic drawing of the RAK12007 module.
Figure 2338: RAK12007 WisBlock Ultrasonic Sensor Mechanic DrawingFigure 7 and Figure 8 show the mounting holes location and diameter of RAK12007 module.
Figure 2339: RAK12007 Mounting Holes Location and Diameter
Figure 2340: RAK12007 Mounting Holes Location and DiameterWisConnector PCB Layout
Figure 2341: WisConnector PCB Footprint and RecommendationsSchematic Diagram
Figure 2342: RAK12007 WisBlock Ultrasonic Sensor Schematic
