forced convection: MQTT connectivity via ESP8266 (logging + max speed control) (594ec108) · Commits · derf / multipass

src/app/forced-convection/.config

+2 −1

Original line number	Diff line number	Diff line
		@@ -46,7 +46,7 @@ CONFIG_arch_arduino_uno_driver_adc=y
		CONFIG_arch_arduino_uno_driver_i2c=y
		# CONFIG_arch_arduino_uno_driver_neopixel is not set
		# CONFIG_arch_arduino_uno_driver_spi is not set
		# CONFIG_arch_arduino_uno_driver_stdin is not set
		CONFIG_arch_arduino_uno_driver_stdin=y
		# CONFIG_arch_arduino_uno_driver_timer is not set
		# CONFIG_arch_arduino_uno_driver_dmx is not set
		# CONFIG_app_datalogger is not set
		@@ -60,6 +60,7 @@ CONFIG_app="forced-convection"
		CONFIG_meta_driver_adc=y
		CONFIG_meta_driver_hardware_i2c=y
		CONFIG_meta_driver_i2c=y
		CONFIG_meta_driver_stdin=y

		#
		# Drivers

src/app/forced-convection/main.cc

+79 −14

Original line number	Diff line number	Diff line
		@@ -7,6 +7,7 @@
		#include "driver/adc.h"
		#include "driver/gpio.h"
		#include "driver/stdout.h"
		#include "driver/stdin.h"
		#include "driver/i2c.h"
		#include "driver/soft_i2c.h"
		#include "driver/lm75.h"
		@@ -14,6 +15,7 @@
		#include "lib/pixelfont/pixeloperator_mirrored.h"
		#include "object/framebuffer.h"

		#include <string.h>

		#define shift_ser GPIO::d8
		#define shift_clk GPIO::d4
		@@ -32,14 +34,26 @@

		unsigned char graph[88];
		unsigned char graph_offset = 0;
		char buffer[64];
		unsigned char buf_pos = 0;
		unsigned char pwm_max;

		void loop(void)
		{
		unsigned char buf_offset = 0;
		static int seconds = 0;
		static int fan_speed = 0;
		static int publish = 0;
		gpio.led_on(0);
		float temp = lm75.getTemp();

		if (PWM1 && (fan_speed != pwm_max)) {
		PWM1 = pwm_max;
		PWM2 = pwm_max;
		PWM3 = pwm_max;
		PWM4 = pwm_max;
		}

		if (temp < 25) {
		PWM1 = 0;
		PWM2 = 0;
		@@ -52,15 +66,51 @@ void loop(void)
		fan_speed = 0;
		}
		else if (temp >= 30) {
		PWM1 = 255;
		PWM2 = 255;
		PWM3 = 255;
		PWM4 = 255;
		PWM1 = pwm_max;
		PWM2 = pwm_max;
		PWM3 = pwm_max;
		PWM4 = pwm_max;
		TCCR0A = _BV(COM0A1) \| _BV(COM0B1) \| _BV(WGM01) \| _BV(WGM00);
		TCCR2A = _BV(COM2A1) \| _BV(COM2B1) \| _BV(WGM21) \| _BV(WGM20);
		TCCR0B = _BV(CS00);
		TCCR2B = _BV(CS20);
		fan_speed = 100;
		fan_speed = pwm_max;
		}

		while (kin.hasKey()) {
		char key = kin.getKey();
		if ((key >= ' ') && (key <= '~')) {
		buffer[buf_pos++] = key;
		}
		#if DEBUG
		kout << key << flush;
		#endif
		gpio.led_toggle(1);

		if (buf_pos >= sizeof(buffer)) {
		buf_pos = 0;
		}

		if (buf_pos && ((key == '\n') \|\| (key == '\r'))) {
		buffer[buf_pos] = 0;
		if (!strncmp(buffer, "RX:", 3)) {
		buf_offset = 3;
		} else if (!strncmp(buffer, "> RX:", 5)) {
		buf_offset = 5;
		} else {
		buf_offset = 0;
		}
		if (buf_offset) {
		pwm_max = 0;
		for (unsigned char i = buf_offset; (i < buf_pos) && buffer[i] ; i++) {
		if ((buffer[i] >= '0') && (buffer[i] <= '9')) {
		pwm_max *= 10;
		pwm_max += buffer[i] - '0';
		}
		}
		}
		buf_pos = 0;
		}
		}

		if (seconds++ == 60) {
		@@ -77,7 +127,7 @@ void loop(void)
		graph_offset = (graph_offset + 1) % (sizeof(graph) / sizeof(graph[0]));
		}

		uint16_t vcc = adc.getVCC_mV() - 200;
		uint16_t vcc = adc.getVCC_mV();

		fb.clear();
		fb.setFont(pixeloperator_mirrored);
		@@ -86,7 +136,22 @@ void loop(void)
		fb.setPos(88, 16);
		fb << vcc/1000 << "." << (vcc%1000)/100 << (vcc%100)/10 << "V";
		fb.setPos(88, 24);
		fb << fan_speed << "%";
		fb << fan_speed;

		publish += 1;
		if (publish == 5) {
		kout << "publish_mqtt('sensor/hm17/schlafzimmer/heizung',";
		kout << "'{\"temperature_degc\":";
		kout.printf_float(temp);
		kout << ",\"fan_pwm\":" << fan_speed;
		kout << ",\"mcu_mV\":" << vcc << "}', 0);" << endl;
		}
		else if (publish == 10) {
		kout << "publish_influx('radiator,area=hm17,location=schlafzimmer temperature_degc=";
		kout.printf_float(temp);
		kout << ",fan_pwm=" << fan_speed << ",mcu_mV=" << vcc << "');" << endl;
		publish = 0;
		}

		for (unsigned char i = 0; i < (sizeof(graph) / sizeof(graph[0])); i++) {
		unsigned char column_value = graph[(graph_offset + i) % (sizeof(graph) / sizeof(graph[0]))];
		@@ -94,9 +159,6 @@ void loop(void)
		}
		ssd1306.showImage(fb.data, fb.width * fb.height / 8);

		kout << "temperature_celsius: ";
		kout.printf_float(temp);
		kout << endl;
		gpio.led_off(0);
		}

		@@ -105,9 +167,12 @@ int main(void)
		arch.setup();
		gpio.setup();
		kout.setup();
		kin.setup();

		gpio.led_on(0);

		pwm_max = 255;

		/*
		* Ensure that the SSD1306 OLED display gets a clean reset / power cycle
		*/
		@@ -123,16 +188,16 @@ int main(void)
		arch.delay_ms(50);

		if (i2c.setup() != 0) {
		kout << "I2C setup FAILED" << endl;
		kout << "-- I2C setup FAILED" << endl;
		return 1;
		}
		kout << "I2C setup OK" << endl;
		kout << "-- I2C setup OK" << endl;

		if (softi2c.setup() != 0) {
		kout << "SoftI2C setup FAILED" << endl;
		kout << "-- SoftI2C setup FAILED" << endl;
		return 1;
		}
		kout << "SoftI2C setup OK" << endl;
		kout << "-- SoftI2C setup OK" << endl;

		lm75.setOS(30);
		lm75.setHyst(25);

Admin message