Yohei Shimmyo / Mbed 2 deprecated CCS811_test

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Dependencies:   mbed CCS811 DHT

main.cpp@1:4be4b811b40e, 2022-01-03 (annotated)

Committer:
rollman
Date:
Mon Jan 03 02:41:25 2022 +0000
Revision:
1:4be4b811b40e
Parent:
0:fcddd87b788e 
initial commit;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rollman 0:fcddd87b788e 1 #include "mbed.h"
rollman 0:fcddd87b788e 2 #include "CCS811.h"
rollman 1:4be4b811b40e 3 #include "DHT.h"
rollman 0:fcddd87b788e 4
rollman 1:4be4b811b40e 5 eType partname = DHT11;
rollman 1:4be4b811b40e 6 eScale tmp_fmt = CELCIUS;
rollman 1:4be4b811b40e 7 Serial m_pc(USBTX, USBRX);
rollman 0:fcddd87b788e 8
rollman 0:fcddd87b788e 9 int main() {
rollman 0:fcddd87b788e 10 m_pc.baud(9600);
rollman 0:fcddd87b788e 11
rollman 1:4be4b811b40e 12 DHT dht(p26, partname);
rollman 1:4be4b811b40e 13
rollman 0:fcddd87b788e 14 I2C i2c_ccs811(p28, p27);
rollman 0:fcddd87b788e 15 // i2c_ccs811.frequency(100000);
rollman 0:fcddd87b788e 16 CCS811 ccs(i2c_ccs811, m_pc);
rollman 0:fcddd87b788e 17
rollman 0:fcddd87b788e 18 {
rollman 0:fcddd87b788e 19 char res = ccs.init();
rollman 0:fcddd87b788e 20 if (res != 0) printerr(m_pc, res);
rollman 0:fcddd87b788e 21 }
rollman 0:fcddd87b788e 22
rollman 0:fcddd87b788e 23 {
rollman 0:fcddd87b788e 24 char status = ccs.readStatus();
rollman 0:fcddd87b788e 25 if (status & 0x01){
rollman 0:fcddd87b788e 26 char errid = ccs.readErr();
rollman 0:fcddd87b788e 27 printerr_reg1(m_pc, errid);
rollman 0:fcddd87b788e 28 }
rollman 0:fcddd87b788e 29 }
rollman 0:fcddd87b788e 30 m_pc.printf("Init Done\r\n");
rollman 0:fcddd87b788e 31
rollman 0:fcddd87b788e 32 uint16_t co2, tvoc;
rollman 0:fcddd87b788e 33 while(1) {
rollman 1:4be4b811b40e 34 wait(3);
rollman 1:4be4b811b40e 35 int dhtres;
rollman 1:4be4b811b40e 36 if ((dhtres = dht.readData()) != 0){
rollman 1:4be4b811b40e 37 m_pc.printf("ERROR when reading DHT11: %d\r\n", dhtres);
rollman 1:4be4b811b40e 38 continue;
rollman 1:4be4b811b40e 39 }
rollman 1:4be4b811b40e 40 float celsius = dht.ReadTemperature(tmp_fmt);
rollman 1:4be4b811b40e 41 float humidity = dht.ReadHumidity();
rollman 1:4be4b811b40e 42 m_pc.printf("DEBUG: celsius = %f, humidity = %f\r\n", celsius, humidity);
rollman 1:4be4b811b40e 43 ccs.setEnvironment(celsius, humidity);
rollman 0:fcddd87b788e 44 while(!ccs.readStatus() & 0x08); // wait for DATA_READY
rollman 1:4be4b811b40e 45 int err;
rollman 1:4be4b811b40e 46 if((err = ccs.readData(&co2, &tvoc)) != 0){
rollman 1:4be4b811b40e 47 printerr(m_pc, err);
rollman 1:4be4b811b40e 48 continue;
rollman 1:4be4b811b40e 49 }
rollman 0:fcddd87b788e 50 m_pc.printf("%d %d\r\n", co2, tvoc);
rollman 0:fcddd87b788e 51 }
rollman 0:fcddd87b788e 52 }