17

Table 14 – Transmitter (BLE) specifications

13.2.6 Transmitter – Bluetooth LE

14.0 LoRa

14.1

Supported features

Table 15 – Supported LoRa features

The current micropython firmware supports LoRaWAN 1.0 acting as either a Class A or Class C node.

Parameter

Min

Typ.

Max

Unit

RF transmit power

–

0

–

dBm

Gain control step

–

±3

–

dBm

RF power control range

–12

–

+12

dBm

Adjacent channel transmit power

F = F0 + 1MHz

–

–14.6

–

dBm

F = F0 – 1MHz

–

–12.7

–

dBm

F = F0 + 2MHz

–

–44.3

–

dBm

F = F0 – 2MHz

–

–38.7

–

dBm

F = F0 + 3MHz

–

–49.2

–

dBm

F = F0 – 3MHz

–

–44.7

–

dBm

F = F0 + >3MHz

–

–50

–

dBm

F = F0 – >3MHz

–

–50

–

dBm

Δf1avg

–

–

265

KHz

Δf2max

247

–

–

KHz

Δf2avg/Δf1avg

–

–0.92

–

–

ICFT

–

–10

–

KHz

Drift rate

–

0.7

–

KHz/50μs

Drift

–

2

–

KHz

Part Number

Frequency Range

LoRa Parameters

Spreading

factor

Bandwidth

Effective

Bitrate

Sensitivity

Semtech SX1272

860–1020MHz

6 – 12

125 – 500

kHz

0.24 – 37.5

kpbs

–117 to –137

dBm