72 lines
No EOL
2.6 KiB
C++
72 lines
No EOL
2.6 KiB
C++
/*
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.cpp - SENSAIRS8 Sensor Library
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Copyright (c) 2020-2021, Stefan Brand
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <Arduino.h>
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#include "SENSAIRS8.h"
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// Constructor - Inititalize Hardware UART
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SENSAIRS8::SENSAIRS8(void) {
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Serial.begin(9600);
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Serial.setTimeout(READ_TIMEOUT);
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}
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uint8_t SENSAIRS8::getSensorData(char *payload, uint8_t startbyte) {
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uint8_t _cmd[7] = {0xFE, 0x44, 0x00, 0x08, 0x02, 0x9F, 0x25};
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while (Serial.available() > 0) Serial.read();
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Serial.write(_cmd, 7);
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delay(1000);
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uint8_t readBytes = read();
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payload[startbyte] = 0x00;
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payload[startbyte+1] = 0x00;
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if (readBytes > 0) {
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uint16_t value = (buffer[3]*256) + buffer[4];
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payload[startbyte] = (value) & 0xFF;
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payload[startbyte+1] = (value >> 8) & 0xFF;
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}
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return startbyte+2;
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}
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// Read a Sensor Response
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uint8_t SENSAIRS8::read() {
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// Number of returned Bytes
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uint8_t ret = 0;
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// Clear Internal Buffer
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zeroBuffer();
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// Read Available Bytes
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if (Serial.available() > 0) {
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ret = Serial.readBytes(buffer, SER_BUF_LEN);
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}
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return ret;
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}
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// Fill the Internal Buffer with Zeroes
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void SENSAIRS8::zeroBuffer() {
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for (int i=0; i < SER_BUF_LEN; i++)
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buffer[i] = 0x00;
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} |