Support for BMP390 (untested)

main/sensors.go

@@ -88,7 +88,7 @@ func initPressureSensor() (ok bool) {
 		log.Printf("Error identifying IMU: %s\n", err.Error())
 		return false
 	}
-	if v == bmp388.ChipId {
+	if v == bmp388.ChipId || v == bmp388.ChipId390 {
 		log.Printf("BMP-388 detected")
 		bmp, err := sensors.NewBMP388(&i2cbus)
 		if err == nil {

sensors/bmp388/bmp388.go

@@ -6,6 +6,7 @@ and converted to use embed
 */
 import (
 	"errors"
+
 	"github.com/kidoman/embd"
 )
 
@@ -172,7 +173,7 @@ func (d *BMP388) ReadPressure() (float64, error) {
 }
 func (d *BMP388) Connected() bool {
 	data, err := d.readRegister(RegChipId, 1)
-	return err == nil && data[0] == ChipId // returns true if i2c comm was good and response equals 0x50
+	return err == nil && (data[0] == ChipId || data[0] == ChipId390) // returns true if i2c comm was good and response equals 0x50/0x60
 }
 func (d *BMP388) SetMode(mode Mode) error {
 	d.Config.Mode = mode

sensors/bmp388/registers.go

@@ -20,6 +20,7 @@ const (
 
 const (
 	ChipId    byte = 0x50 // correct response if reading from chip id register
+	ChipId390 byte = 0x60 // BMP390 is compatible to bmp388, just with different Chip ID, see #252
 	PwrPress  byte = 0x01 // power on pressure sensor
 	PwrTemp   byte = 0x02 // power on temperature sensor
 	SoftReset byte = 0xB6 // command to reset all user configuration