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60 lines
1.6 KiB
C++
60 lines
1.6 KiB
C++
// Basic demo for configuring the MCP4728 4-Channel 12-bit I2C DAC
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#include <Adafruit_MCP4728.h>
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#include <Wire.h>
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Adafruit_MCP4728 mcp;
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void setup(void) {
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Serial.begin(115200);
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while (!Serial)
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delay(10); // will pause Zero, Leonardo, etc until serial console opens
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Serial.println("Turning on I2C Devices...");
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pinMode(6, OUTPUT);
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digitalWrite(6, HIGH);
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Serial.println("Starting I2C initialization...");
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Wire.begin(3, 4);
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delay(100); // Give I2C time to stabilize
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Serial.println("Adafruit MCP4728 test!");
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// Try to initialize!
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if (!mcp.begin()) {
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Serial.println("Failed to find MCP4728 chip");
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while (1) {
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delay(10);
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}
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}
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}
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void loop() {
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mcp.setChannelValue(MCP4728_CHANNEL_A, 100);
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mcp.setChannelValue(MCP4728_CHANNEL_B, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_C, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_D, 0);
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delay(10);
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mcp.setChannelValue(MCP4728_CHANNEL_A, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_B, 100);
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mcp.setChannelValue(MCP4728_CHANNEL_C, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_D, 0);
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delay(10);
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mcp.setChannelValue(MCP4728_CHANNEL_A, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_B, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_C, 100);
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mcp.setChannelValue(MCP4728_CHANNEL_D, 0);
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delay(10);
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mcp.setChannelValue(MCP4728_CHANNEL_A, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_B, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_C, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_D, 100);
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delay(10);
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mcp.setChannelValue(MCP4728_CHANNEL_A, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_B, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_C, 0);
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mcp.setChannelValue(MCP4728_CHANNEL_D, 0);
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delay(2);
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}
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