diff --git a/cmd/ui/ui b/cmd/ui/ui
new file mode 100755
index 0000000..a2f67ba
Binary files /dev/null and b/cmd/ui/ui differ
diff --git a/cmd/ui/ui.go b/cmd/ui/ui.go
new file mode 100644
index 0000000..f152444
--- /dev/null
+++ b/cmd/ui/ui.go
@@ -0,0 +1,44 @@
+package main
+
+import (
+	"time"
+	i2c "github.com/d2r2/go-i2c"
+	bh1750 "github.com/d2r2/go-bh1750"
+	logger "github.com/d2r2/go-logger"
+)
+
+var lg = logger.NewPackageLogger("main",
+	logger.ErrorLevel,
+)
+
+func main() {
+	defer logger.FinalizeLogger()
+
+	logger.ChangePackageLogLevel("i2c", logger.ErrorLevel)
+	logger.ChangePackageLogLevel("bh1750", logger.ErrorLevel)
+
+	// Create new connection to I2C to bh1750
+	i2c, err := i2c.NewI2C(0x23, 1)
+	if err != nil { lg.Fatal(err) }
+
+	// Free I2C connection on exit
+	defer i2c.Close()
+
+	// Setup sensor
+	sensor := bh1750.NewBH1750()
+
+	// Reset sensor prior to use
+	err = sensor.Reset(i2c)
+	if err != nil { lg.Fatal(err) }
+
+	// Read sensor value over time
+	for {
+		resolution := bh1750.HighResolution
+		lux, err := sensor.MeasureAmbientLight(i2c, resolution)
+		if err != nil { lg.Fatal(err) }
+
+		println("Illuminance:", lux, "lx")
+
+		time.Sleep(500 * time.Millisecond)
+	}
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..e419e10
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,10 @@
+module kemonine.info/PiFrame
+
+go 1.15
+
+require (
+	github.com/d2r2/go-bh1750 v0.0.0-20181222061755-1195122364ab
+	github.com/d2r2/go-i2c v0.0.0-20191123181816-73a8a799d6bc
+	github.com/d2r2/go-logger v0.0.0-20181221090742-9998a510495e
+	github.com/davecgh/go-spew v1.1.1 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..e551cf5
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,8 @@
+github.com/d2r2/go-bh1750 v0.0.0-20181222061755-1195122364ab h1:8zeQTn3owfeyIA5KIhtvcj9wlMStdFaxbYwPkWhGVgo=
+github.com/d2r2/go-bh1750 v0.0.0-20181222061755-1195122364ab/go.mod h1:3atw7ac57A1fKlJIGeLBaeXdh80Revqk6uVl7bZyH10=
+github.com/d2r2/go-i2c v0.0.0-20191123181816-73a8a799d6bc h1:HLRSIWzUGMLCq4ldt0W1GLs3nnAxa5EGoP+9qHgh6j0=
+github.com/d2r2/go-i2c v0.0.0-20191123181816-73a8a799d6bc/go.mod h1:AwxDPnsgIpy47jbGXZHA9Rv7pDkOJvQbezPuK1Y+nNk=
+github.com/d2r2/go-logger v0.0.0-20181221090742-9998a510495e h1:ZG3JBA6rPRl0xxQ+nNSfO7tor8w+CNCTs05DNJQYbLM=
+github.com/d2r2/go-logger v0.0.0-20181221090742-9998a510495e/go.mod h1:oA+9PUt8F1aKJ6o4YU1T120i7sgo1T6/1LWEEBy0BSs=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=