User Manual Documentation FCC ID: LW9-PDM Canada: 2119B-PDM Revision A B Modified Date June03-2016 Aug10-2016 By JA JA Checked Date June06-2016 By AP Module Name PDM Description Proximity detection module (PDM) is a wireless detection and distance measurement sensor operating at 2.4Ghz. Remarks Supports configuration via serial interface.
List Of Contains 1. 2. 3. 4. 5. 6. 7. PROJECT DESCRIPTION ............................................................................................................................. 3 BLOCK DIAGRAM ....................................................................................................................................... 4 TECHNICAL SPECIFICATION .................................................................................................................... 5 CONNECTION DIAGRAM ...........
1. PROJECT DESCRIPTION Proximity Detection Module is an RF module designed to measure the distance between two nodes. The module uses Atmel AT86R233 phase difference measurement function in order to relate change of signal phase with distance. The module operates in the 2.4 GHz band in order to communicate between two paired nodes. The sensor was designed in order to be integrated with Hetronic standard systems.
2. BLOCK DIAGRAM Figure 1: Block Diagram Revision A Project: PDM Description: Proximity detection module (PDM) is a wireless detection and distance measurement sensor operating at 2.4Ghz.
3. TECHNICAL SPECIFICATION Operating Temperature Storage Temperature Supply Voltage Range Communication Interface Outputs/Outputs -20o to +70o Celsius -40o to +85o Celsius 3-12 VDC, 40mA Max UART, USB 3 configurable IOs High current open drain output Accuracy (line of sight) <5m – 1m accuracy >5m – 2m and above Table 1: Technical Specifications Details Revision A Project: PDM Description: Proximity detection module (PDM) is a wireless detection and distance measurement sensor operating at 2.
4. CONNECTION DIAGRAM 4.1. Board Connections X1 1. Vsupply 3-12V 2. GND USB 1. 2. 3. 4. 5. 1. 2. 3. 4. 5. X3 GND uC_Reset RXD 2.8V TXD X4 GND Open drain output GPIO3 Output Low in zone Output High in zone U.FL Figure 2: Board Connections Revision A Project: PDM Description: Proximity detection module (PDM) is a wireless detection and distance measurement sensor operating at 2.4Ghz.
5. CONFIGURATION PARAMETERS When connecting with a serial interface to the PDM module one can configure the RF parameters and edit the communications parameters of the sensor. An example of the parameters available is shown below. Figure 3: PDM configuration parameters Addresses can be configured via the serial interface and go up to a sixteen bit value. The address for the receiver has to be the same as the transmitter address plus one.
Table 2: PDM configuration parameters Communication parameters Command Description Channel c o i p s g Own Short Address Receiver short address PAN-ID Ranging Addressing scheme Adressing Mode Comment IEEE802.15.4 channel for basic communication between nodes [11,12,..26] Node Short address. Used when doing local ranging. Receiver short address for local ranging.
6. PROGRAMMING CONFIGURATION AND TESTING PROCEDURE [Tools Needed / Requirements] Putty software Atmel Flip software USB to Uart converter cable Atmel Studio Atmel ICE with JTAG adaptor Mini USB cable 1. Connect supply to X1 and see that current consumption is between 30-40mA. 2. Open Putty and connect USB to TTL converter cable to connector X2 as shown below.
3. Set the putty baud rate to 38600kb/s and select the COM port of the USB converter and press Open. Figure 5: Opening putty application 4. A blank black screen should appear. When pressing ‘p’ on the PC the following details should be seen. Figure 6: Configuration parameters Revision A Project: PDM Description: Proximity detection module (PDM) is a wireless detection and distance measurement sensor operating at 2.4Ghz.
5. If the letter ‘m’ is now pressed on the keyboard then in the Putty terminal various measurements should start being seen. Figure 7: PDM continuous ranging 7. REVISION HISTORY Rev A - Initial Document, HM0015R02 Revision A Project: PDM Description: Proximity detection module (PDM) is a wireless detection and distance measurement sensor operating at 2.4Ghz.
