Add GroveAHT20

blocks/GroveAHT20.ts

@@ -0,0 +1,71 @@
+/**
+ * Grove - AHT20 Custom Block
+ */
+//% groups=['AHT20']
+namespace grove
+{
+    function Read(aht20: grove.sensors.AHT20): { Humidity: number, Temperature: number }
+    {
+        if (!aht20.GetState().Calibrated)
+        {
+            aht20.Initialization();
+            if (!aht20.GetState().Calibrated) return null;
+        }
+
+        aht20.TriggerMeasurement();
+        for (let i = 0; ; ++i)
+        {
+            if (!aht20.GetState().Busy) break;
+            if (i >= 500) return null;
+            basic.pause(10);
+        }
+
+        return aht20.Read();
+    }
+
+    /**
+     * Read the temperature(°C) from Grove-AHT20(SKU#101990644)
+     */
+    //% group="AHT20"
+    //% block="[Grove - Temp&Humi Sensor]|Read the temperature(°C))"
+    //% weight=3
+    export function aht20ReadTemperatureC(): number
+    {
+        const aht20 = new grove.sensors.AHT20();
+        const val = Read(aht20);
+        if (val == null) return null;
+
+        return val.Temperature;
+    }
+
+    /**
+     * Read the temperature(°F) from Grove-AHT20(SKU#101990644)
+     */
+    //% group="AHT20"
+    //% block="[Grove - Temp&Humi Sensor]|Read the temperature(°F))"
+    //% weight=2
+    export function aht20ReadTemperatureF(): number
+    {
+        const aht20 = new grove.sensors.AHT20();
+        const val = Read(aht20);
+        if (val == null) return null;
+
+        return val.Temperature * 9 / 5 + 32;
+    }
+
+    /**
+     * Read the humidity from Grove-AHT20(SKU#101990644)
+     */
+    //% group="AHT20"
+    //% block="[Grove - Temp&Humi Sensor]|Read the humidity"
+    //% weight=1
+    export function aht20ReadHumidity(): number
+    {
+        const aht20 = new grove.sensors.AHT20();
+        const val = Read(aht20);
+        if (val == null) return null;
+
+        return val.Humidity;
+    }
+
+}