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Fix wallbe register decoding for officially unsupported SDM meters

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This commit is contained in:
andig 2020-09-15 19:25:39 +02:00
parent f0a14abcad
commit 58d946bd47
1 changed files with 2 additions and 1 deletions
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3
charger/wallbe.go
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@ -175,8 +175,9 @@ func (wb *Wallbe) ChargingTime() (time.Duration, error) {
func (wb *Wallbe) decodeReading(b []byte) float64 {
v := binary.BigEndian.Uint32(b)
// assuming high register first
if wb.encoding == encodingSDM {
bits := (v&0xffff)<<16 | (v>>16)&0xffff
bits := uint32(b[3])<<0 | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
f := math.Float32frombits(bits)
return float64(f)
}