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Add (very crude) Sensair S8 Sensor Support

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seiichiro 2021-03-15 16:26:05 +01:00
parent 715e2fe22d
commit 108a0f911c
3 changed files with 123 additions and 1 deletions
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67
lib/SENSAIRS8/SENSAIRS8.cpp Normal file
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@ -0,0 +1,67 @@
/*
.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);
}
void SENSAIRS8::getSensorData(lora_data &loradata) {
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();
if (readBytes > 0) {
loradata.ppm = (buffer[3]*256) + buffer[4];
}
}
// 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;
}

52
lib/SENSAIRS8/SENSAIRS8.h Normal file
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@ -0,0 +1,52 @@
/*
SENSAIRS8.h - 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.
*/
#ifndef SENSAIRS8_H
#define SENSAIRS8_H
// Data Structure for the LoRa Packet
struct lora_data {
uint8_t bat;
int16_t ppm;
} __attribute__ ((packed));
#define READ_TIMEOUT 500 // Timeout for Serial Communication
#define SER_BUF_LEN 7 // Length of the Internal Serial Message Buffer
class SENSAIRS8 {
private:
uint8_t buffer[SER_BUF_LEN];
uint8_t read();
void zeroBuffer(void);
uint16_t getPPM(void);
public:
SENSAIRS8(void);
void getSensorData(lora_data &loradata);
};
#endif

5
src/main.cpp
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@ -55,6 +55,9 @@ void blink(uint8_t num) {
#elif defined HAS_SG112A
#include <SG112A.h>
SG112A sensor;
#elif defined HAS_SENSAIRS8
#include <SENSAIRS8.h>
SENSAIRS8 sensor;
#elif defined HAS_BME280
#include <BME280.h>
BME280 sensor;
@ -88,7 +91,7 @@ const lmic_pinmap lmic_pins = {
};
// List of unused Pins - will be disabled for Power Saving
#if defined DEBUG || defined HAS_SG112A || defined HAS_MHZ19C
#if defined DEBUG || defined HAS_SG112A || defined HAS_MHZ19C || defined HAS_SENSAIRS8
const int disabledPins[] = {PIN_PB5, PIN_PB4, PIN_PB1, PIN_PB0, PIN_PC3, PIN_PC2, PIN_PC1, PIN_PC0};
#else
const int disabledPins[] = {PIN_PB5, PIN_PB4, PIN_PB3, PIN_PB2, PIN_PB1, PIN_PB0, PIN_PC3, PIN_PC2, PIN_PC1, PIN_PC0};