Update SNR algorithm

Quency-D · web-flow · commit 79eda73b1545 · 2021-09-06T17:13:16.000+08:00
diff --git a/src/lora/LoRa.cpp b/src/lora/LoRa.cpp
@@ -242,7 +242,7 @@ int LoRaClass::packetRssi()
 
 float LoRaClass::packetSnr()
 {
-  return ((int8_t)readRegister(REG_PKT_SNR_VALUE)) * 0.25;
+  return (((int8_t)readRegister(REG_PKT_SNR_VALUE) +2) >> 2);
 }
 
 size_t LoRaClass::write(uint8_t byte)

Original file line number	Diff line number	Diff line change
`@@ -242,7 +242,7 @@ int LoRaClass::packetRssi()`
`242`	`242`
`243`	`243`	`float LoRaClass::packetSnr()`
`244`	`244`	`{`
`245`		`- return ((int8_t)readRegister(REG_PKT_SNR_VALUE)) * 0.25;`
	`245`	`+ return (((int8_t)readRegister(REG_PKT_SNR_VALUE) +2) >> 2);`
`246`	`246`	`}`
`247`	`247`
`248`	`248`	`size_t LoRaClass::write(uint8_t byte)`