產品說明1
※本產品原廠代理從國外進口，有些交期較長，下訂前請詢問！
Sparkfun原廠 RFM12BSP Wireless Transceiver - 915MHz
(WRL-12031)
RFM12B-S2 跟 RFM12BSP 是舊款的
Description: The RFM12B is a great inexpensive option for wireless communication; it’s an ISM band FSK transceiver module implemented with a unique PLL. These modules operate in the 915MHZ band and fully comply with FCC and ETSI regulations.
This module has a wide voltage supply range of 2.2-3.8VDC. An SPI interface is used to send data and configure the RFM12 module. The configuration commands, described in the RF12 IC Datasheet linked below, can be used to set the data rate, frequency band, wake-up timer, transfer data, receive data from the 16-bit FIFO, and much more.
The module comes in a 14-pin SMD package, with pins spaced by 2mm. Check below for a breakout board.
Features:
- Low-cost, high-performance
- SPI compatible interface
- High data rate (up to 115.2 kbps in digital mode)
- Wakeup timer
- 2.2V-3.8V power supply
- Analog and digital RSSI outputs
- Differential antenna input
- Automatic antenna tuning
- 16-bit RX data FIFO
- PLL and zero IF technology
- Fast PLL lock time
- High resolution PLL with 2.5KHz step
- Programmable TX frequency deviation (from 15 to 240 kHz)
- Programmable receiver bandwidth (from 67 to 400 kHz)
- Analog and digital signal strength indicator
- Internal data filtering and clock recovery
- Clock and reset signal output for external MCU use
- 10MHz crystal for PLL timing
Dimensions: 15.9 x 16.1 mm (0.626 x 0.634 in)
Documents:
