Adafruit PDM MEMS Microphone Breakout Board - JST SH Connector
SKU: TH1984
In Stock₹577.02
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SKU: TH2118
Long-range LoRa radio transceiver breakout for low-power wireless communication.
Uses the RFM95W module based on the SX1276, supporting LoRa modulation over SPI.
Quick SpecsThe Adafruit RFM95W LoRa Radio Transceiver Breakout is a long-range packet radio module built around the SX1276 LoRa transceiver. It operates in the license-free 868 MHz and 915 MHz ISM bands, with the exact frequency selected in software, making it suitable for regional LPWAN, telemetry, and sensor node projects.
This breakout is designed for easy integration with Arduino and other microcontrollers using an SPI interface. It includes an onboard 3.3 V regulator and level shifting, so it can be powered from and interfaced with either 3 V or 5 V logic systems. Unlike WiFi or Bluetooth style links, LoRa packet radio does not require association or connection maintenance, which is useful for simple point-to-point or multi-node communication.
Transmit power is software selectable from +5 dBm to +20 dBm, with up to 100 mW output capability. Depending on antenna, terrain, and configuration, the radio can reach around 2 km with simple wire antennas and line-of-sight conditions, and much farther with directional antennas and careful tuning. Please note that this module communicates only with compatible LoRa radios on the same frequency and is not compatible with RFM69 radios.
Technical details for Adafruit RFM95W LoRa Radio Transceiver Breakout - 868/915MHz.
| Specification | Details |
|---|---|
| Radio IC | SX1276 LoRa transceiver module |
| Frequency Band | 868 MHz / 915 MHz ISM band, software selectable |
| Interface | SPI |
| Modulation | LoRa packet radio |
| Supply Voltage | 3 V to 5 V DC input supported via onboard regulator |
| Logic Level Compatibility | 3 V and 5 V logic supported via onboard level shifting |
| Transmit Power | Software selectable from +5 dBm to +20 dBm |
| Peak TX Current | Approximately 100 mA at +20 dBm transmit |
| Receive/Listening Current | Approximately 30 mA during active listening |
| Antenna Options | Wire antenna pad plus footprint for uFL or SMA connector |
| Pin | Type | Description |
|---|---|---|
| VIN | Power Input | 3 V to 5 V DC supply input for the breakout |
| GND | Power | Ground reference |
| SCK | Digital Input | SPI clock input |
| MISO | Digital Output | SPI data output from the radio to the microcontroller |
| MOSI | Digital Input | SPI data input to the radio from the microcontroller |
| CS | Digital Input | SPI chip select for the LoRa module |
| RST | Digital Input | Hardware reset input for the radio |
| DIO0 | Digital Output | Interrupt/status pin commonly used for packet done events |
| DIO1 | Digital Output | Configurable interrupt/status output from the radio |
| DIO2 | Digital Output | Additional configurable interrupt/status output |
This is the 900 MHz version and can be configured for either 868 MHz or 915 MHz operation. The exact operating frequency is set in software.
Yes. The breakout includes an onboard 3.3V regulator and level shifting, so it can be powered from and interfaced with 3V or 5V logic systems.
It uses an SPI interface. The available pins include SCK, MISO, MOSI, CS, RST, and DIO0/DIO1/DIO2 for status or interrupt functions.
No, it is not compatible with RFM69 radios. The supplier also notes that you need two or more matching radios of the same part number and frequency family to communicate reliably.
Typical range is around 2 km depending on antenna, obstructions, frequency, and transmit power. Supplier guidance also mentions longer distances in line-of-sight or with directional antennas and careful tuning.
You can use a simple wire antenna soldered to the antenna pad, or fit a uFL or SMA edge-mount connector if needed. The supplier notes that some soldering is required for antenna setup and for attaching the header.
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