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Merge pull request #3 from jbonachera/master

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add SetFrequency method
This commit is contained in:
Friedl Ulrich 2017-05-01 18:01:24 +02:00 • committed by GitHub
commit 7a551a782e
1 changed files with 17 additions and 0 deletions
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17
device.go
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@ -14,6 +14,12 @@ const (
spiPath = "/dev/spidev0.0" spiPath = "/dev/spidev0.0"
) )
var frequencies = map[string][]byte{
"433": {0x6C, 0x40, 0x00},
"868": {0xD9, 0x00, 0x00},
"915": {0xE4, 0xC0, 0x00},
}
// OnReceiveHandler is the receive callback // OnReceiveHandler is the receive callback
type OnReceiveHandler func(*Data) type OnReceiveHandler func(*Data)
@ -212,6 +218,17 @@ func (r *Device) Encrypt(key []byte) error {
return r.readWriteReg(REG_PACKETCONFIG2, 0xFE, turnOn) return r.readWriteReg(REG_PACKETCONFIG2, 0xFE, turnOn)
} }
func (r *Device) SetFrequency(freq string) error {
freq_bytes, found := frequencies[freq]
if !found {
return errors.New("frequency not found")
}
r.writeReg(REG_FRFMSB, freq_bytes[0])
r.writeReg(REG_FRFMID, freq_bytes[1])
r.writeReg(REG_FRFLSB, freq_bytes[2])
return nil
}
// SetMode sets operation mode // SetMode sets operation mode
func (r *Device) SetMode(newMode byte) error { func (r *Device) SetMode(newMode byte) error {
if newMode == r.mode { if newMode == r.mode {