chip-io - npm Package Compare versions

Comparing version 0.1.1 to 0.2.0

lib/chip-io.js

@@ -6,2 +6,3 @@ var util = require('util');
 
+var I2C = require('./i2c');
 var AXP209 = require('./axp209');
@@ -62,2 +63,3 @@ var PCF8574A = require('./pcf8574a');
   this._pcf8574a = new PCF8574A(2, 0x38);
+  this._i2cReads = [];
 
@@ -161,2 +163,105 @@ // emit "connect" event on the next tick
 
+ChipIO.prototype.i2cConfig = function(delay) {
+  debug('i2cConfig', delay);
+};
+
+ChipIO.prototype.i2cWrite = function(address, register, data) {
+  if (arguments.length === 2) {
+    data = register;
+    register = null;
+  }
+
+  debug('i2cWrite', address, register, data);
+
+  var i2c = new I2C(1, address);
+
+  if (typeof(data) === 'number') {
+    data = [data];
+  }
+
+  data = new Buffer(data);
+
+  i2c.open(function(err) {
+    if (err) {
+      return;
+    }
+
+    if (register) {
+      i2c.writeRegister(register, data, function() {
+        i2c.close();
+      });
+    } else {
+      i2c.write(data, function() {
+        i2c.close();
+      });
+    }
+  });
+};
+
+ChipIO.prototype.i2cWriteReg = function(address, register, data) {
+  debug('i2cWriteReg', address, register, data);
+
+  this.i2cWrite(address, register, data);
+};
+
+ChipIO.prototype.i2cRead = function(address, register, size, handler) {
+  debug('i2cRead', address, register, size, handler);
+
+  this._i2cReads.push(arguments);
+};
+
+ChipIO.prototype.i2cReadOnce = function(address, register, size, handler) {
+  if (arguments.length === 3) {
+    handler = size;
+    size = register;
+    register = null;
+  }
+
+  debug('i2cReadOnce', address, register, size, handler);
+
+  var i2c = new I2C(1, address);
+
+  i2c.open(function(err) {
+    if (err) {
+      return;
+    }
+
+    if (register) {
+      i2c.readRegister(register, size, function(err, data) {
+        if (err) {
+          return;
+        }
+
+        i2c.close(function() {
+          var event = 'I2C-reply-' + address + '-' + register;
+
+          this.once(event, handler);
+
+          this.emit(event, data);
+        }.bind(this));
+      }.bind(this));
+    } else {
+      i2c.read(size, function(err, data) {
+        if (err) {
+          return;
+        }
+
+        i2c.close(function() {
+          var event = 'I2C-reply-' + address;
+
+          this.once(event, handler);
+
+          this.emit(event, data);
+        }.bind(this));
+      }.bind(this));
+    }
+  }.bind(this));
+};
+
+ChipIO.prototype.pwmWrite = function(pin, value) {
+  throw new Error('pwmWrite is not supported');
+};
+
+ChipIO.prototype.analogWrite = ChipIO.prototype.pwmWrite;
+
 ChipIO.prototype._tick = function() {
@@ -199,4 +304,8 @@ if (this._pins[this._batPin].report) {
   }
+
+  for (var j = 0; j < this._i2cReads.length; j++) {
+    this.i2cReadOnce.apply(this, this._i2cReads[j]);
+  }
 };
 
 module.exports = ChipIO;

package.json

 {
   "name": "chip-io",
-  "version": "0.1.1",
+  "version": "0.2.0",
   "description": "Johnny-Five IO Plugin for the Next Thing Co. C.H.I.P.",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -11,2 +11,5 @@ # chip-io
  * Node.js installed
+   1. Install ```curl```: ```apt-get install curl```
+   2. Follow Debian section of [NodeSource installations instructions](https://github.com/nodesource/distributions#debinstall)
+ * Build essential installed: ```apt-get install build-essential```
 
@@ -36,3 +39,3 @@ ## Getting Started
 
-See [examples](examples folder) as well as [Johnny-Five examples](http://johnny-five.io/examples/).
+See [examples](examples) folder as well as [Johnny-Five examples](http://johnny-five.io/examples/).
 
@@ -58,3 +61,4 @@ ## API
 | INTTEMP | 10 | Input | Reads internal temperature from the AXP290 |
+| I2C | | I2C | Uses I2C port 1 (TWI1-SCK and TWI1-SDA) |
 
 ![C.H.I.P. pinouts](http://docs.getchip.com/images/chip_pinouts.jpg)

No alert changes

Improved metrics

Total package byte prevSize

174592

increased by1.52%

Lines of code

473

increased by21.28%

Number of lines in readme file

62

increased by6.9%

No dependency changes