https://github.com/pilotak/mcp3x21

Arduino library for MCP3021 I2C ADC
https://github.com/pilotak/mcp3x21

mcp3021 mcp3221

Last synced: about 1 year ago
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Arduino library for MCP3021 I2C ADC

• Host: GitHub
• URL: https://github.com/pilotak/mcp3x21
• Owner: pilotak
• License: mit
• Created: 2018-09-23T16:55:44.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2021-09-29T07:06:13.000Z (over 4 years ago)
• Last Synced: 2025-03-28T03:41:21.021Z (about 1 year ago)
• Topics: mcp3021, mcp3221
• Language: C++
• Homepage:
• Size: 21.5 KB
• Stars: 3
• Watchers: 1
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Arduino library for MCP3021 & MCP3221 I2C ADC

[![build](https://github.com/pilotak/MCP3X21/workflows/build/badge.svg)](https://github.com/pilotak/MCP3X21/actions) 

[![Framework Badge Arduino](https://img.shields.io/badge/framework-arduino-00979C.svg)](https://arduino.cc)

## Example

```cpp

#include 

#include "MCP3X21.h"

const uint8_t address = 0x4D;

const uint16_t ref_voltage = 3300;  // in mV

MCP3021 mcp3021(address);

void setup() {

    Serial.begin(115200);

#if defined(ESP8266)

    Wire.begin(SDA, SCL);

    mcp3021.init(&Wire);

#else

    mcp3021.init();

#endif

}

void loop() {

    uint16_t result = mcp3021.read();

    Serial.print(F("ADC: "));

    Serial.print(result);

    Serial.print(F(", mV: "));

    Serial.println(mcp3021.toVoltage(result, ref_voltage));

    delay(1000);

}

```