diff --git a/components/pms5003/Kconfig.projbuild b/components/pms5003/Kconfig.projbuild
index 1186588..94c7086 100644
--- a/components/pms5003/Kconfig.projbuild
+++ b/components/pms5003/Kconfig.projbuild
@@ -1,22 +1,27 @@
 menu "PMS5003"
     config PMS5003_ENABLED
         bool "PMS5003 Enabled"
-	default y
+	    default y
 
     config PMS5003_UART_PORT
         int "PMS5003 UART PORT"
         default 0
-	depends on PMS5003_ENABLED
+	    depends on PMS5003_ENABLED
 
     config PMS5003_UART_TX
         int "PMS5003 UART Tx GPIO Pin"
         default 4
-	depends on PMS5003_ENABLED
+	    depends on PMS5003_ENABLED
 
     config PMS5003_UART_RX
         int "PMS5003 UART Rx GPIO Pin"
         default 5
-	depends on PMS5003_ENABLED
+	    depends on PMS5003_ENABLED
+
+    config PMS5003_SET_GPIO
+        int "PMS5003 Set Pin - (should be connected to pin 3 of PMS5003)"
+        default 6
+        depends on PMS5003_ENABLED
 
     config PMS5003_PERIOD_POLL
         int "Period to poll the PMS5003 in seconds"
diff --git a/components/pms5003/pms5003.c b/components/pms5003/pms5003.c
index ce74695..b7c7aab 100644
--- a/components/pms5003/pms5003.c
+++ b/components/pms5003/pms5003.c
@@ -1,5 +1,7 @@
 #include "pms5003.h"
+#include "driver/gpio.h"
 #include "driver/uart.h"
+#include "hal/gpio_types.h"
 #include "hal/uart_types.h"
 
 #define START_CHAR_1 0x42
@@ -13,17 +15,20 @@ 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,
+      .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, // No idea what this does - it's a default I found somewhere
   };
+  gpio_set_direction(CONFIG_PMS5003_SET_GPIO, GPIO_MODE_DEF_OUTPUT);
+  // Datasheet has 10k pull-up
+  gpio_set_pull_mode(CONFIG_PMS5003_SET_GPIO, GPIO_PULLUP_ONLY);
   return PMS5003_OK;
 }
 
 pms5003_err pms5003_read(void) {
-
+  // uart_read_bytes
   return PMS5003_OK;
 }