first release

.gitignore

@@ -0,0 +1,7 @@
+built
+node_modules
+yotta_modules
+yotta_targets
+pxt_modules
+*.db
+*.tgz

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018 
+Copyright (c) 2018, microbit/micropython Chinese community
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1 +1,48 @@
-# BMP180
+# BMP180
+
+makecode BMP180 Digital Pressure Sensor package for micro:bit  
+
+Author: shaoziyang  
+Date:   2018.Jun  
+
+![](icon.png)  
+
+![](bmp180.jpg)
+
+## usage
+
+open your microbit makecode project, in Add Package, paste  
+
+https://github.com/microbit-makecode-packages/BMP280  
+
+to search box then search.
+
+## I2C Address  
+
+- 0x77  
+
+## API
+
+- function pressure()  
+get pressure in hpa  
+
+- function temperature()  
+return temperature in Celsius.
+
+
+## Demo
+
+![](demo.jpg)
+
+## License
+
+MIT
+
+Copyright (c) 2018, microbit/micropython Chinese community  
+
+## Supported targets
+
+* for PXT/microbit
+
+
+[From microbit/micropython Chinese community](http://www.micropython.org.cn)

main.ts

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+/**
+* makecode BMP180 digital pressure sensor Package.
+* From microbit/micropython Chinese community.
+* http://www.micropython.org.cn
+*/
+
+/**
+ * BMP180 block
+ */
+//% weight=100 color=#30A0C0 icon="\uf042" block="BMP180"
+namespace BMP180 {
+    let BMP180_I2C_ADDR = 0x77;
+
+    function setreg(reg: number, dat: number): void {
+        let buf = pins.createBuffer(2);
+        buf[0] = reg;
+        buf[1] = dat;
+        pins.i2cWriteBuffer(BMP180_I2C_ADDR, buf);
+    }
+
+    function getreg(reg: number): number {
+        pins.i2cWriteNumber(BMP180_I2C_ADDR, reg, NumberFormat.UInt8BE);
+        return pins.i2cReadNumber(BMP180_I2C_ADDR, NumberFormat.UInt8BE);
+    }
+
+    function getUInt16BE(reg: number): number {
+        pins.i2cWriteNumber(BMP180_I2C_ADDR, reg, NumberFormat.UInt8BE);
+        return pins.i2cReadNumber(BMP180_I2C_ADDR, NumberFormat.UInt16BE);
+    }
+
+    function getInt16BE(reg: number): number {
+        pins.i2cWriteNumber(BMP180_I2C_ADDR, reg, NumberFormat.UInt8BE);
+        return pins.i2cReadNumber(BMP180_I2C_ADDR, NumberFormat.Int16BE);
+    }
+
+    let AC1 = getInt16BE(0xAA)
+    let AC2 = getInt16BE(0xAC)
+    let AC3 = getInt16BE(0xAE)
+    let AC4 = getUInt16BE(0xB0)
+    let AC5 = getUInt16BE(0xB2)
+    let AC6 = getUInt16BE(0xB4)
+    let B1 = getInt16BE(0xB6)
+    let B2 = getInt16BE(0xB8)
+    let MB = getInt16BE(0xBA)
+    let MC = getInt16BE(0xBC)
+    let MD = getInt16BE(0xBE)
+    let UT = 0
+    let UP = 0
+    let T = 0
+    let P = 0
+    let X1 = 0
+    let X2 = 0
+    let X3 = 0
+    let B3 = 0
+    let B4 = 0
+    let B5 = 0
+    let B6 = 0
+    let B7 = 0
+    let _p = 0
+
+    function measure(): void {
+        setreg(0xF4, 0x2E)
+        basic.pause(6)
+        UT = getUInt16BE(0xF6)
+        setreg(0xF4, 0x34)
+        basic.pause(6)
+        UP = getUInt16BE(0xF6)
+    }
+
+    function get(): void {
+        measure()
+        X1 = (UT - AC6) * AC5 / (1 << 15)
+        X2 = MC * (1 << 11) / (X1 + MD)
+        B5 = X1 + X2
+        T = (B5 + 8) / 160
+        B6 = B5 - 4000
+        X1 = (B2 * (B6 * B6 / (1 << 12))) / (1 << 11)
+        X2 = (AC2 * B6) / (1 << 11)
+        X3 = X1 + X2
+        B3 = ((AC1 * 4 + X3) + 2) / 4
+        X1 = AC3 * B6 / (1 << 13)
+        X2 = (B1 * (B6 * B6 / (1 << 12))) / (1 << 16)
+        X3 = (X1 + X2 + 2) / 4
+        B4 = AC4 * (X3 + 32768) / (1 << 15)
+        B7 = (UP - B3) * 50000
+        _p = (B7 / B4) * 2
+        X1 = (_p / (1 << 8)) * (_p / (1 << 8))
+        X1 = (X1 * 3038) / (1 << 16)
+        X2 = (-7357 * _p) / (1 << 16)
+        P = _p + (X1 + X2 + 3791) / 16
+    }
+
+    /**
+     * get temperature
+     */
+    //% blockId="BMP180_GET_TEMPERATURE" block="get temperature"
+    //% weight=80 blockGap=8
+    export function Temperature(): number {
+        get();
+        return T;
+    }
+
+    /**
+     * get pressure
+     */
+    //% blockId="BMP180_GET_PRESSURE" block="get pressure"
+    //% weight=80 blockGap=8
+    export function Press(): number {
+        get();
+        return P;
+    }
+}

pxt.json

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+{
+    "name": "BMP180",
+    "version": "1.0.0",
+    "description": "makecode BMP180 Digital Pressure Sensor Package for micro:bit",
+    "license": "MIT",
+    "dependencies": {
+        "core": "*"
+    },
+    "files": [
+        "README.md",
+        "main.ts"
+    ],
+    "testFiles": [
+        "test.ts"
+    ],
+    "public": true
+}

test.ts

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+basic.forever(() => {
+    serial.writeValue("T", BMP180.Temperature())
+    serial.writeValue("P", BMP180.Press())
+    basic.pause(1000)
+})