LoRa/FSK Transceiver Module - 915MHz (RFM97CW) SF_Raspberry Pi Accessories There is a jumper on

There is a jumper on the rear of the board that controls the output voltage on the VCC pin

You can also solder wires directly to the board for the most compact installation

since its a separate chip

By loading only the button

The available output current is a function of the input voltage and efficiency (see the Typical Efficiency and Output Current section below)

LoRa/FSK Transceiver Module - 915MHz (RFM97CW) SF_Raspberry Pi Accessories There is a jumper onRFM97CW Sub GHz radio transceivers are ideal for long range wireless applications. With high integration, the RFM97CW simplifies the peripheral materials needed in system design. The SX1276 based module has sensitivity up to 138dbm that optimizes link performance for applications. In addition, the RFM97CW also supports the function of duty cycle operation mode, channel listening, high precision RSSI, power on reset, squelch output, etc., which makes