FDC2214电容传感器资料（含源码原理图与PCB源文件） -

//
// FDC2x1x hardware configuration:
// Component value as in default circuit form datasheet. (18uH inductor and 33pF cap)
//
// SD and ADDR pins tied to GND
// INTB pin not used
//
// ARDUINO <--> FDC
// A4 <-------> SDA
// A5 <-------> SCL
//
// !!!!!! Arduinos are mostly 5V. FDC chips are 3.3V, so either use 3.3V version of Arduino, like pro mini, or use level shifter on I2C bus.
//
// ### FDC
#include <Wire.h>
#include "FDC2214.h"
FDC2214 capsense(FDC2214_I2C_ADDR_0); // Use FDC2214_I2C_ADDR_1
// ###
void setup() {
// ### Start I2C
Wire.begin();
// Wire.setClock(400000L);
// ### Start serial
Serial.begin(115200);
Serial.println("\nFDC2x1x test");
// ### Start FDC
// Start FDC2212 with 2 channels init
bool capOk = capsense.begin(0x3, 0x4, 0x5); //setup first two channels, autoscan with 2 channels, deglitch at 10MHz
// Start FDC2214 with 4 channels init
//bool capOk = capsense.begin(0xF, 0x4, 0x5); //setup all four channels, autoscan with 2 channels, deglitch at 10MHz
if (capOk) Serial.println("Sensor OK");
else Serial.println("Sensor Fail");
}
// ### Tell aplication how many chanels will be smapled in main loop
#define CHAN_COUNT 2
// ###
void loop() {
unsigned long capa[CHAN_COUNT]; // variable to store data from FDC
for (int i = 0; i < CHAN_COUNT; i++){ // for each channel
// ### read 28bit data
capa[i]= capsense.getReading28(i);//
// ### Transmit data to serial in simple format readable by SerialPlot application.
Serial.print(capa[i]);
if (i < CHAN_COUNT-1) Serial.print(", ");
else Serial.println("");
}
// No point in sleeping
//delay(100);
}

复制代码