86 lines
3 KiB
C++
86 lines
3 KiB
C++
/*
|
|
.cpp - SENSAIRS8 Sensor Library
|
|
Copyright (c) 2020-2021, Stefan Brand
|
|
All rights reserved.
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
1. Redistributions of source code must retain the above copyright notice, this
|
|
list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright notice,
|
|
this list of conditions and the following disclaimer in the documentation
|
|
and/or other materials provided with the distribution.
|
|
3. Neither the name of the copyright holder nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <Arduino.h>
|
|
#include "SENSAIRS8.h"
|
|
|
|
// Constructor - Inititalize Hardware UART
|
|
SENSAIRS8::SENSAIRS8(void) {
|
|
Serial.begin(9600);
|
|
Serial.setTimeout(READ_TIMEOUT);
|
|
}
|
|
|
|
uint8_t SENSAIRS8::getSensorData(char *payload, uint8_t startbyte) {
|
|
uint8_t _cmd[7] = {0xFE, 0x44, 0x00, 0x08, 0x02, 0x9F, 0x25};
|
|
while (Serial.available() > 0) Serial.read();
|
|
Serial.write(_cmd, 7);
|
|
|
|
delay(1000);
|
|
uint8_t readBytes = read();
|
|
|
|
payload[startbyte] = 0x00;
|
|
payload[startbyte+1] = 0x00;
|
|
if (readBytes > 0) {
|
|
uint16ToPayload((buffer[3]*256) + buffer[4], payload, startbyte);
|
|
}
|
|
return startbyte+2;
|
|
}
|
|
|
|
void SENSAIRS8::calibrate(void) {
|
|
pinMode(calpin, OUTPUT);
|
|
digitalWrite(calpin, LOW);
|
|
delay(5000);
|
|
digitalWrite(calpin, HIGH);
|
|
pinMode(calpin, INPUT_PULLUP);
|
|
}
|
|
|
|
void SENSAIRS8::initialize(void) {
|
|
// Disable Auto Background Calibration
|
|
uint8_t _cmd[8] = {0xFE, 0x06, 0x00, 0x01F, 0x00, 0x00, 0xAC, 0x03};
|
|
while (Serial.available() > 0) Serial.read();
|
|
Serial.write(_cmd, 8);
|
|
Serial.flush();
|
|
}
|
|
|
|
// Read a Sensor Response
|
|
uint8_t SENSAIRS8::read() {
|
|
// Number of returned Bytes
|
|
uint8_t ret = 0;
|
|
// Clear Internal Buffer
|
|
zeroBuffer();
|
|
|
|
// Read Available Bytes
|
|
if (Serial.available() > 0) {
|
|
ret = Serial.readBytes(buffer, SER_BUF_LEN);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
// Fill the Internal Buffer with Zeroes
|
|
void SENSAIRS8::zeroBuffer() {
|
|
for (int i=0; i < SER_BUF_LEN; i++)
|
|
buffer[i] = 0x00;
|
|
} |