mqtt esp8266
Dependencies: X_NUCLEO_IKS01A3
PMK2021_MQTT_ESP8266_IKS01A3
Revision 4:c737f3d85a19, committed 2021-04-27
- Comitter:
- nenad
- Date:
- Tue Apr 27 17:32:05 2021 +0000
- Parent:
- 3:43527b1910c7
- Commit message:
- mqtt esp8266 test
Changed in this revision
X_NUCLEO_IKS01A3.lib | Show annotated file Show diff for this revision Revisions of this file |
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/X_NUCLEO_IKS01A3.lib Tue Apr 27 17:32:05 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/teams/ST/code/X_NUCLEO_IKS01A3/#aea924ef2645
--- a/main.cpp Mon Apr 26 21:46:12 2021 +0000 +++ b/main.cpp Tue Apr 27 17:32:05 2021 +0000 @@ -1,33 +1,75 @@ -/* mbed Microcontroller Library - * Copyright (c) 2019 ARM Limited - * SPDX-License-Identifier: Apache-2.0 - */ #include "mbed.h" -//#include "EthernetInterface.h" #include "platform/mbed_thread.h" #include <MQTTClientMbedOs.h> +#include "XNucleoIKS01A3.h" + // Blinking rate in milliseconds #define BLINKING_RATE_MS 500 // Initialise the digital pin LED1 as an output - DigitalOut led(LED1); +DigitalOut led(LED1); +/* Instantiate the expansion board */ +static XNucleoIKS01A3 *mems_expansion_board = XNucleoIKS01A3::instance(D14, D15, D4, D5, A3, D6, A4); + +/* Retrieve the composing elements of the expansion board */ +static STTS751Sensor *t_sensor = mems_expansion_board->t_sensor; + + +volatile int mems_event = 0; +uint32_t previous_tick = 0; +uint32_t current_tick = 0; +uint8_t high = 0, low = 0; +float temperature = 0.0f; +char buffer[32]; + +void INT_cb(); + +/* Helper function for printing floats & doubles */ +static char *print_double(char *str, double v, int decimalDigits = 2) +{ + int i = 1; + int intPart, fractPart; + int len; + char *ptr; + + /* prepare decimal digits multiplicator */ + for (; decimalDigits != 0; i *= 10, decimalDigits--); + + /* calculate integer & fractinal parts */ + intPart = (int)v; + fractPart = (int)((v - (double)(int)v) * i); + + /* fill in integer part */ + sprintf(str, "%i.", intPart); + + /* prepare fill in of fractional part */ + len = strlen(str); + ptr = &str[len]; + + /* fill in leading fractional zeros */ + for (i /= 10; i > 1; i /= 10, ptr++) { + if (fractPart >= i) { + break; + } + *ptr = '0'; + } + + /* fill in (rest of) fractional part */ + sprintf(ptr, "%i", fractPart); + + return str; +} InterruptIn button(USER_BUTTON); - int arrivedcount = 0; TCPSocket socket; MQTTClient client(&socket); MQTT::Message message; - int button_pressed=0; -float version = 0.6; - char* topic = "mbed-sample-pub"; - char* topic_sub = "mbed-sample-sub"; - - - +char* topic_pub = "PMK-client-temperature"; +char* topic_sub = "PMK-client-topic_sub"; WiFiInterface *wifi; @@ -53,34 +95,26 @@ int scan_demo(WiFiInterface *wifi) { WiFiAccessPoint *ap; - printf("Scan:\n"); - int count = wifi->scan(NULL,0); - if (count <= 0) { printf("scan() failed with return value: %d\n", count); return 0; } - /* Limit number of network arbitrary to 15 */ count = count < 15 ? count : 15; - ap = new WiFiAccessPoint[count]; count = wifi->scan(ap, count); - if (count <= 0) { printf("scan() failed with return value: %d\n", count); return 0; } - for (int i = 0; i < count; i++) { printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\n", ap[i].get_ssid(), sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2], ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel()); } printf("%d networks available.\n", count); - delete[] ap; return count; } @@ -93,10 +127,8 @@ ++arrivedcount; } -void buttonFunction() { - - button_pressed=1; - +void buttonFunction() { + button_pressed=1; } @@ -104,12 +136,25 @@ int main() { + /* Attach callback to STTS751 INT */ + t_sensor->attach_int_irq(&INT_cb); + /* Enable STTS751 temperature sensor */ + t_sensor->enable(); + /* Set ODR to 4Hz */ + t_sensor->set_odr(4.0f); + /* Set Low Temperature Threshold */ + t_sensor->set_low_temp_thr(22.0f); + /* Set High Temperature Threshold */ + t_sensor->set_high_temp_thr(28.0f); + /* Enable Event pin */ + t_sensor->set_event_pin(1); + /* Get beginning status */ + t_sensor->get_temp_limit_status(NULL, NULL, NULL); + button.rise(&buttonFunction); // attach the address of the flip function to the rising edge const char* hostname = "broker.mqttdashboard.com"; int port = 1883; - // Network interface - //EthernetInterface net; wifi = WiFiInterface::get_default_instance(); if (!wifi) { @@ -135,12 +180,8 @@ printf("IP: %s\n", wifi->get_ip_address()); printf("Netmask: %s\n", wifi->get_netmask()); printf("Gateway: %s\n", wifi->get_gateway()); - printf("RSSI: %d\n\n", wifi->get_rssi()); - - - - - //client = MQTTClient::(&socket); + printf("RSSI: %d\n\n", wifi->get_rssi()); + socket.open(wifi); socket.connect(hostname, port); @@ -148,7 +189,7 @@ MQTTPacket_connectData data = MQTTPacket_connectData_initializer; data.MQTTVersion = 3; - data.clientID.cstring = "mbed-sample"; + data.clientID.cstring = "PMK-client"; //data.username.cstring = "testuser"; //data.password.cstring = "testpassword"; if ((rc = client.connect(data)) != 0) @@ -157,34 +198,32 @@ if ((rc = client.subscribe(topic_sub, MQTT::QOS2, messageArrived)) != 0) printf("rc from MQTT subscribe is %d\r\n", rc); - - - - - - while (true) { + t_sensor->get_temperature(&temperature); + printf("Temp[C]: %7s C\r\n", print_double(buffer, temperature)); led = !led; thread_sleep_for(BLINKING_RATE_MS); if (button_pressed==1) { button_pressed=0; - printf("sace publish\r\n"); + printf("Publishing data\r\n"); // QoS 0 char buf[100]; - sprintf(buf, "Hello World! QoS 0 message from app version %f\r\n", version); + sprintf(buf, "Temp[C]: %7s C\r\n", print_double(buffer, temperature)); message.qos = MQTT::QOS0; message.retained = false; message.dup = false; message.payload = (void*)buf; message.payloadlen = strlen(buf)+1; - client.publish(topic, message); - //pc.printf("sace jild\r\n"); - //client.yield(1000); - //pc.printf("izjildovo\r\n"); + client.publish(topic_pub, message); } - printf("sace jild\r\n"); + printf("Yielding"); client.yield(1000); - printf("izjildovo\r\n"); + printf(" -> Yielded\r\n"); } } + +void INT_cb() +{ + mems_event = 1; +} \ No newline at end of file