Started on DS18B20 and PMS5003

Didn't realise DS18B20 was 1-Wire

Will probably just find a library for that one - can't be arsed
doing more bit banging

components/dht22/dht22.c

@@ -1,13 +1,17 @@
 #include "dht22.h"
-#include "esp_log.h"
-#include "hal/gpio_types.h"
-#include "sdkconfig.h"
 #include "driver/gpio.h"
-#include <rom/ets_sys.h>
+#include "esp_log.h"
 #include "esp_timer.h"
 #include "freertos/portmacro.h"
+#include "hal/gpio_types.h"
+#include "sdkconfig.h"
+#include <rom/ets_sys.h>
 
+#ifndef CONFIG_DHT22_DATA_GPIO
+#define DATA_GPIO 2
+#else
 #define DATA_GPIO CONFIG_DHT22_DATA_GPIO
+#endif /* CONFIG_DHT22_DATA_GPIO */
 
 #if DATA_GPIO == -1
 #error "Please define your DHT22 GPIO Data Pin"
@@ -70,7 +74,8 @@ dht22_error dht22_read() {
   gpio_set_direction(DATA_GPIO, GPIO_MODE_INPUT);
 
   // Wait here until it goes high DHT "responds" after being pulled high
-  // The 40 is pretty arbitrary - but there's probably a problem if it goes higher
+  // The 40 is pretty arbitrary - but there's probably a problem if it goes
+  // higher
   uint32_t elapsed_time;
   elapsed_time = wait_for_signal_to_change_from(1);
   if (elapsed_time == DHT22_TIMEOUT_ERROR) {
@@ -105,17 +110,17 @@ dht22_error dht22_read() {
    */
   uint8_t data[5] = {0, 0, 0, 0, 0};
   for (uint8_t i = 0; i < 40; i++) {
-      elapsed_time = wait_for_signal_to_change_from(0);
-      if (elapsed_time == DHT22_TIMEOUT_ERROR || elapsed_time < 30 ||
-          elapsed_time > 80) {
-        portENABLE_INTERRUPTS();
-        return DHT22_TIMEOUT_ERROR;
-      }
+    elapsed_time = wait_for_signal_to_change_from(0);
+    if (elapsed_time == DHT22_TIMEOUT_ERROR || elapsed_time < 30 ||
+        elapsed_time > 80) {
+      portENABLE_INTERRUPTS();
+      return DHT22_TIMEOUT_ERROR;
+    }
 
-      elapsed_time = wait_for_signal_to_change_from(1);
-      if (elapsed_time > 50) {
-        data[i / 8] |= (1 << (7 - (i % 8)));
-      }
+    elapsed_time = wait_for_signal_to_change_from(1);
+    if (elapsed_time > 50) {
+      data[i / 8] |= (1 << (7 - (i % 8)));
+    }
   }
   portENABLE_INTERRUPTS();
 

components/ds18b20/Kconfig.projbuild

@@ -5,11 +5,11 @@ menu "DS18B20"
 
     config DS18B20_GPIO_PIN
         int "GPIO Pin used for 1-Wire DS18B20"
-        default 10
+        default 15
 	    depends on DS18B20_ENABLED
 
     config DS18B20_PERIOD_POLL
         int "Period to poll the DS18B20 in seconds"
-	    default 8000
+	    default 8
 	    depends on DS18B20_ENABLED
 endmenu

components/ds18b20/ds18b20.c

@@ -1,4 +1,12 @@
-int test() {
-  int i = 5;
-  return i;
+#include "ds18b20.h"
+#include "driver/gpio.h"
+#include "sdkconfig.h"
+
+#ifdef CONFIG_DS18B20_ENABLED
+
+int ds18b20_read(void) {
+  esp_err_t ret = gpio_set_pull_mode(CONFIG_DS18B20_GPIO_PIN, GPIO_PULLUP_ONLY);
+  return DS18B20_OK;
 }
+
+#endif /* CONFIG_DS18B20_ENABLED */

components/ds18b20/ds18b20.h

@@ -0,0 +1,7 @@
+#pragma once
+
+int ds18b20_read(void);
+
+typedef enum {
+  DS18B20_OK,
+} ds18b20_error;

components/pms5003/Kconfig.projbuild

@@ -3,13 +3,23 @@ menu "PMS5003"
         bool "PMS5003 Enabled"
 	default y
 
-    config PMS5003_UART
-        int "PMS5003 UART Port"
-        default 1
+    config PMS5003_UART_PORT
+        int "PMS5003 UART PORT"
+        default 0
+	depends on PMS5003_ENABLED
+
+    config PMS5003_UART_TX
+        int "PMS5003 UART Tx GPIO Pin"
+        default 4
+	depends on PMS5003_ENABLED
+
+    config PMS5003_UART_RX
+        int "PMS5003 UART Rx GPIO Pin"
+        default 5
 	depends on PMS5003_ENABLED
 
     config PMS5003_PERIOD_POLL
-        int "Period to poll the PMS5003 in ms"
-	default 8000
+        int "Period to poll the PMS5003 in seconds"
+	default 8
 	depends on PMS5003_ENABLED
-endmenu
+endmenu

components/pms5003/pms5003.c

@@ -1,4 +1,29 @@
-int test() {
-  int i = 5;
-  return i;
+#include "pms5003.h"
+#include "driver/uart.h"
+#include "hal/uart_types.h"
+
+#define START_CHAR_1 0x42
+#define START_CHAR_2 0x4d
+
+#define DEFAULT_BAUD 9600
+
+static const char* TAG = "PMS5003";
+
+pms5003_err pms5003_init() {
+  const uart_port_t uart_num = CONFIG_PMS5003_UART_PORT;
+  uart_set_pin(uart_num, CONFIG_PMS5003_UART_TX, CONFIG_PMS5003_UART_RX, -1, -1);
+  uart_config_t uart_config = {
+    .baud_rate = DEFAULT_BAUD,
+    .data_bits = UART_DATA_8_BITS,
+    .parity = UART_PARITY_DISABLE,
+    .stop_bits = UART_STOP_BITS_1,
+    .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
+    .rx_flow_ctrl_thresh = 122,
+  };
+  return PMS5003_OK;
+}
+
+pms5003_err pms5003_read(void) {
+
+  return PMS5003_OK;
 }

components/pms5003/pms5003.h

@@ -0,0 +1,5 @@
+#pragma once
+
+typedef enum { PMS5003_OK } pms5003_err;
+
+pms5003_err pms5003_read(void);