feat: add i2c scanner block (#70)

blocks/leaphy_common.js

@@ -511,6 +511,13 @@ function getBlocks(board) {
       tooltip: "%{BKY_USE_I2C_CHANNEL_TOOLTIP}",
       helpUrl: "",
     },
+    {
+      type: "i2c_list_devices",
+      message0: "%{BKY_I2C_LIST_DEVICES}",
+      previousStatement: null,
+      nextStatement: null,
+      style: "leaphy_blocks",
+    },
     {
       type: "leaphy_tof_get_distance",
       message0: "%%{BKY_LEAPHY_TOF_GET_DISTANCE}",

generators/arduino/leaphy_common.js

@@ -247,6 +247,59 @@ function getCodeGenerators(Arduino) {
 
     return code;
   };
+
+  Arduino.forBlock["i2c_list_devices"] = function (block) {
+    const LIST_DEVICES =
+      "void i2cListDevices() {\n" +
+      "    for (int channel = 0; channel < 8; channel++) {\n" +
+      '        Serial.print("Scanning channel ");\n' +
+      "        Serial.print(channel);\n" +
+      '        Serial.println(":");\n' +
+      "        \n" +
+      "        i2cSelectChannel(channel);\n" +
+      "        \n" +
+      "        for (DeviceAddress address : deviceMap) {\n" +
+      "            Wire.beginTransmission(address.address);\n" +
+      "            int error = Wire.endTransmission();\n" +
+      "            \n" +
+      "            if (error == 0) {\n" +
+      '                Serial.print("Found: ");\n' +
+      "                Serial.print(address.device);\n" +
+      '                Serial.print(" at address 0x");\n' +
+      "                \n" +
+      "                if (address.address < 16) {\n" +
+      '                    Serial.print("0");\n' +
+      "                }\n" +
+      "                Serial.println(address.address, HEX);\n" +
+      "            }\n" +
+      "        }\n" +
+      "        \n" +
+      "        i2cRestoreChannel();\n" +
+      "    }\n" +
+      "}\n";
+
+    const DEVICE_CHANNEL_MAP =
+      "struct DeviceAddress { \n" +
+      "  uint8_t address;\n" +
+      "  char* device;\n" +
+      "};\n" +
+      "\n" +
+      "DeviceAddress deviceMap[] = {\n" +
+      '    {0x0D, "Compass"},\n' +
+      '    {0x29, "Color Sensor / ToF Sensor"},\n' +
+      '    {0x39, "RGB + Gesture Sensor"},\n' +
+      '    {0x3C, "Screen"},\n' +
+      '    {0x58, "Gas Sensor"},\n' +
+      '    {0x76, "Air Pressure Sensor"}\n' +
+      "};\n";
+
+    Arduino.addSetup("serial", "Serial.begin(115200);", false);
+    addI2CDeclarations();
+    Arduino.addInclude("i2c_device_map", DEVICE_CHANNEL_MAP);
+    Arduino.addDeclaration("i2c_list_devices", LIST_DEVICES);
+
+    return "i2cListDevices();\n";
+  };
 }
 
 export default getCodeGenerators;

msg/js/en.js

@@ -445,5 +445,6 @@ Blockly.Msg["COPY_ALL_TO_BACKPACK"] = "Copy all blocks to backpack";
 Blockly.Msg["PASTE_ALL_FROM_BACKPACK"] = "Paste all blocks from backpack";
 Blockly.Msg["USE_I2C_CHANNEL"] = "Use I2C channel";
 Blockly.Msg["USE_I2C_CHANNEL_TOOLTIP"] = "Use the selected I2C channel for sensors in this block";
+Blockly.Msg["I2C_LIST_DEVICES"] = "List connected I2C devices";
 
 export default Blockly.Msg;

msg/js/nl.js

@@ -527,5 +527,6 @@ Blockly.Msg["COPY_ALL_TO_BACKPACK"] = "Kopieer alles naar rugzak";
 Blockly.Msg["PASTE_ALL_FROM_BACKPACK"] = "Plak alles uit rugzak";
 Blockly.Msg["USE_I2C_CHANNEL"] = "Gebruik I2C kanaal";
 Blockly.Msg["USE_I2C_CHANNEL_TOOLTIP"] = "Gebruik het geselecteerde I2C kanaal voor sensoren in dit blok";
+Blockly.Msg["I2C_LIST_DEVICES"] = "Zoek naar verbonden I2C apparaten";
 
 export default Blockly.Msg;

package.json

@@ -25,7 +25,7 @@
     "theme",
     "categories"
   ],
-  "version": "1.15.1",
+  "version": "1.16.0",
   "description": "Leaphy custom Blockly blocks and arduino code generator",
   "name": "@leaphy-robotics/leaphy-blocks"
 }