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lora: Fix SNR value in SX126x received packets. #1000

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Merged
merged 1 commit into from
Apr 24, 2025
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lora: Fix SNR value in SX126x received packets. #1000

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5 changes: 3 additions & 2 deletions micropython/lora/lora-sx126x/lora/sx126x.py
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Original file line number Diff line number Diff line change
Expand Up @@ -596,8 +596,9 @@ def _read_packet(self, rx_packet, flags):
pkt_status = self._cmd("B", _CMD_GET_PACKET_STATUS, n_read=4)

rx_packet.ticks_ms = ticks_ms
rx_packet.snr = pkt_status[2] # SNR, units: dB *4
rx_packet.rssi = 0 - pkt_status[1] // 2 # RSSI, units: dBm
# SNR units are dB * 4 (signed)
rx_packet.rssi, rx_packet.snr = struct.unpack("xBbx", pkt_status)
rx_packet.rssi //= -2 # RSSI, units: dBm
rx_packet.crc_error = (flags & _IRQ_CRC_ERR) != 0

return rx_packet
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2 changes: 1 addition & 1 deletion micropython/lora/lora-sx126x/manifest.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,3 @@
metadata(version="0.1.4")
metadata(version="0.1.5")
require("lora")
package("lora")
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