Please help me. I am very appreciated if anyone tell me the device is similar with Henesis Wimodule. Here is the technical information. I actually the similar device for my project.
It is a small low cost universal module that operates as a component of IEEE 802.15.4 wireless sensor networks and which contains a high-performance three-axial precision accelerometer. It also includes digital buses and analog lines, allowing for future addition of new external sensors. Taking into consideration the requirements cited above, it was considered that using this board as the base of the architecture would allow to reach the proposed objectives
The accelerometer used is the LIS3LV02DQ from ST Microelectronics [65]. It is
a three-axial digital output low voltage linear accelerometer. These directions must be taken into account when interpreting the data that has been sampled. Each sample is composed by 6 bytes, i.e., 2 bytes for each one of the three accelerometer axis: x,y and z.
The RF transceiver used in the system is the MRF24J40 from Microchip [66]. Its main characteristics are the following ones:
• General features:
– IEEE 802.15.4 2.4 GHz standard compliant RF transceiver.
– Small, 40-Pin Leadless QFN 6Å~6 mm2 package.
– Integrated 20 MHz and 32.768 kHz crystal oscillator circuitry.
– Supports ZigBee, MiWi, MiWi P2P and proprietary wireless networking protocols.
– Low-current consumption: typical values of 19 mA in RX mode, 23 mA in TX and 2 μA in sleep mode.
• RF/Analog features:
– ISM band 2.405-2.48 GHz operation.
– Data rate: 250 kbps.
– -95 dBm typical sensitivity with +5 dBm maximum input level.
– +0 dBm typical output power with 36 dB TX power control range.
– Differential RF input/output with integrated TX/RX switch.
• MAC/Baseband Features:
– Hardware CSMA-CA (Carrier Sense Multiple Access – Collision Avoidance) mechanism, automatic acknowledgement response and FCS check.
– Independent beacon, transmit and GTS FIFO.
– Automatic packet retransmits capability.
Finally, the microcontroller mounted on the board corresponds to the Microchip PIC18F87J11 family . Specifically, the PIC used is the 18F67J11, a 64-Pin TQFP, with the following characteristics:
• Device flash program memory: 128 kB.
• SRAM data memory: 3930 bytes.
• 29 interrupt sources.
• I/O ports: A, B, C, D, E, F, G.
• 10-bit Analog-to-Digital module: 11 input channels.
• 2 Capture/Compare/PWM modules.
• 3 Enhanced Capture/Compare/PWM modules.
Thank you so much. Please help me