diff --git a/app/src/incphub/src/incphub_client.c b/app/src/incphub/src/incphub_client.c
index bb57eca..54cf5e5 100644
--- a/app/src/incphub/src/incphub_client.c
+++ b/app/src/incphub/src/incphub_client.c
@@ -69,8 +69,8 @@ int incphub_send_msg(incphub_cli_t *cli, uint8_t *buffer, size_t length, incphub
 		return INCPHUB_EINVAL;
 
 	// Unwind buffer pointer
-	ntl_packet_t *ntl_packet = (ntl_packet_t*)(buffer - sizeof(ntl_header_t));
-	nil_packet_t *nil_packet = (nil_packet_t*)(ntl_packet - sizeof(ntl_header_t));
+	ntl_packet_t *ntl_packet = (ntl_packet_t*)((uint8_t*)buffer - sizeof(ntl_header_t));
+	nil_packet_t *nil_packet = (nil_packet_t*)((uint8_t*)ntl_packet - sizeof(ntl_header_t));
 
 	// Populate NTL header
 	ntl_build_header(&ntl_packet->header, dst.port, cli->port, length);
diff --git a/app/src/incphub/src/incphub_shared.c b/app/src/incphub/src/incphub_shared.c
index 27eb98b..bbb03ff 100644
--- a/app/src/incphub/src/incphub_shared.c
+++ b/app/src/incphub/src/incphub_shared.c
@@ -206,7 +206,7 @@ int dequeue_message_ingest(uint8_t **buffer_ptr, TickType_t max_delay)
     uint8_t *buffer;
 
     // Try to dequeue message
-    if (xQueueReceive(incphub_ingest_queue, &buffer, max_delay))
+    if (xQueueReceive(incphub_ingest_queue, &buffer, max_delay) == pdFALSE)
     {
         return INCPHUB_EAGAIN;
     }
diff --git a/app/src/incphub/src/incphub_task.c b/app/src/incphub/src/incphub_task.c
index c9fe729..04143f8 100644
--- a/app/src/incphub/src/incphub_task.c
+++ b/app/src/incphub/src/incphub_task.c
@@ -58,7 +58,7 @@ void incphub_task_main(void *params)
     {
 		// Dequeue message
 		uint8_t *buffer;
-		dequeue_message_ingest(&buffer, portMAX_DELAY);
+		err = dequeue_message_ingest(&buffer, portMAX_DELAY);
 
 		// Get NIL packet
 		nil_packet_t *nil = extract_nil_packet(buffer, INCPHUB_MSG_BUFFER_SIZE);
diff --git a/app/src/main.c b/app/src/main.c
index f9e3d12..51bcb1e 100644
--- a/app/src/main.c
+++ b/app/src/main.c
@@ -4,6 +4,8 @@
 #include "task.h"
 
 #include "tasks/heartbeat_task.h"
+#include "tasks/sensor_task.h"
+#include "tasks/requester_task.h"
 #include "incphub/incphub_task.h"
 
 int my_main()
@@ -13,6 +15,8 @@ int my_main()
 
 	// Create tasks
 	xTaskCreateStatic(heartbeat_task_main, "heartbeat", HEARTBEAT_TASK_STACK_DEPTH, NULL, HEARTBEAT_TASK_PRIORITY, _heartbeat_task_stack, &_heartbeat_task);
+	xTaskCreateStatic(sensor_task_main, "sensor", SENSOR_TASK_STACK_DEPTH, NULL, SENSOR_TASK_PRIORITY, _sensor_task_stack, &_sensor_task);
+	xTaskCreateStatic(requester_task_main, "requester", REQUESTER_TASK_STACK_DEPTH, NULL, REQUESTER_TASK_PRIORITY, _requester_task_stack, &_requester_task);
 	xTaskCreateStatic(incphub_task_main, "incphub", INCPHUB_TASK_STACK_DEPTH, NULL, INCPHUB_TASK_PRIORITY, _incphub_task_stack, &_incphub_task);
 
 	// Run
diff --git a/app/src/tasks/CMakeLists.txt b/app/src/tasks/CMakeLists.txt
index 3900d79..cc0d594 100644
--- a/app/src/tasks/CMakeLists.txt
+++ b/app/src/tasks/CMakeLists.txt
@@ -1,4 +1,6 @@
 target_sources(${EXECUTABLE} PRIVATE
 	tasks.c
 	heartbeat_task.c
+	sensor_task.c
+	requester_task.c
 )
diff --git a/app/src/tasks/heartbeat_task.h b/app/src/tasks/heartbeat_task.h
index 1f36687..086822e 100644
--- a/app/src/tasks/heartbeat_task.h
+++ b/app/src/tasks/heartbeat_task.h
@@ -1,5 +1,5 @@
-#ifndef _HEARTBEAT_TASK_H_
-#define _HEARTBEAT_TASK_H_
+#ifndef HEARTBEAT_TASK_H_
+#define HEARTBEAT_TASK_H_
 
 #include "FreeRTOS.h"
 #include "task.h"
diff --git a/app/src/tasks/requester_task.c b/app/src/tasks/requester_task.c
new file mode 100644
index 0000000..484b406
--- /dev/null
+++ b/app/src/tasks/requester_task.c
@@ -0,0 +1,70 @@
+#include "requester_task.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#include "stm32f4xx_hal.h"
+#include "stm32f4xx_hal_uart.h"
+#include "usart.h"
+
+#include "incphub/incphub_client.h"
+
+
+
+StackType_t _requester_task_stack[REQUESTER_TASK_STACK_DEPTH];
+StaticTask_t _requester_task;
+
+
+#define RANDOM_COUNT 4
+uint32_t random_values[RANDOM_COUNT] = { 411, 69, 420, 0xdeadbeef };
+
+void requester_task_main(void *params)
+{
+	(void)params;
+
+	TickType_t last_wake = xTaskGetTickCount();
+	int random_index = 0;
+
+	uint8_t *buffer;
+	size_t length;
+	incphub_addr_t source;
+
+	// Init incphub client
+	incphub_cli_t *cli;
+	incphub_init_client(&cli, 70);
+
+	while (1)
+	{
+		// Avoid spamming the sensor task
+		xTaskDelayUntil(&last_wake, 50);
+
+		// Generate request
+		uint32_t request = random_values[random_index++];
+		random_index %= RANDOM_COUNT;
+
+		// Get buffer
+		incphub_get_msg_buffer(cli, &buffer, sizeof(uint32_t));
+
+		// Populate buffer
+		*(uint32_t*)buffer = request;
+
+		// Send to sendor task
+		incphub_addr_t destination = { .addr = NIL_ADDR_LOCALHOST, .port = 69 };
+		incphub_send_msg(cli, buffer, sizeof(uint32_t), destination, portMAX_DELAY);
+
+		// Await reply (assumes no other task will send to this one)
+		incphub_await_msg(cli, &buffer, &length, &source, portMAX_DELAY);
+
+		// Ignore messages of different size
+		if (length != sizeof(uint32_t))
+			continue;
+
+		// Read reply message
+		uint32_t num = *(uint32_t*)buffer;
+
+		// Profit (send to UART to ensure it worked)
+		char strbuf[32];
+		sprintf(strbuf, "%u\r\n", num);
+		HAL_UART_Transmit(&huart2, strbuf, strlen(strbuf), 9999);
+	}
+}
diff --git a/app/src/tasks/requester_task.h b/app/src/tasks/requester_task.h
new file mode 100644
index 0000000..4fe6707
--- /dev/null
+++ b/app/src/tasks/requester_task.h
@@ -0,0 +1,16 @@
+#ifndef REQUSTER_TASK_H_
+#define REQUSTER_TASK_H_
+
+#include "FreeRTOS.h"
+#include "task.h"
+#include "FreeRTOSConfig.h"
+
+#define REQUESTER_TASK_STACK_DEPTH configMINIMAL_STACK_SIZE
+#define REQUESTER_TASK_PRIORITY (configMAX_PRIORITIES - 1)
+
+extern StackType_t _requester_task_stack[REQUESTER_TASK_STACK_DEPTH];
+extern StaticTask_t _requester_task;
+
+void requester_task_main(void *params);
+
+#endif
diff --git a/app/src/tasks/sensor_task.c b/app/src/tasks/sensor_task.c
new file mode 100644
index 0000000..64296b1
--- /dev/null
+++ b/app/src/tasks/sensor_task.c
@@ -0,0 +1,55 @@
+#include "sensor_task.h"
+
+#include "stm32f4xx_hal.h"
+#include "stm32f4xx_hal_gpio.h"
+#include "gpio.h"
+
+#include "incphub/incphub_client.h"
+
+
+
+StackType_t _sensor_task_stack[SENSOR_TASK_STACK_DEPTH];
+StaticTask_t _sensor_task;
+
+
+
+void sensor_task_main(void *params)
+{
+	(void)params;
+
+	uint8_t *buffer;
+	size_t length;
+	incphub_addr_t source;
+
+	// Init incphub client
+	incphub_cli_t *cli;
+	incphub_init_client(&cli, 69);
+
+	while (1)
+	{
+		// Get a message (assume it is a uint32_t)
+		incphub_await_msg(cli, &buffer, &length, &source, portMAX_DELAY);
+
+		// Ignore messages of different size
+		if (length != sizeof(uint32_t))
+			continue;
+
+		// Read incoming message
+		uint32_t num = *(uint32_t*)buffer;
+
+		// Release buffer once read
+		incphub_release_msg_buffer(cli, buffer);
+
+		// Process message
+		num++;
+
+		// Request buffer for reply
+		incphub_get_msg_buffer(cli, &buffer, sizeof(uint32_t));
+
+		// Prepare reply message
+		*(uint32_t*)buffer = num;
+
+		// Send reply
+		incphub_send_msg(cli, buffer, sizeof(uint32_t), source, portMAX_DELAY);
+	}
+}
diff --git a/app/src/tasks/sensor_task.h b/app/src/tasks/sensor_task.h
new file mode 100644
index 0000000..5f56aaf
--- /dev/null
+++ b/app/src/tasks/sensor_task.h
@@ -0,0 +1,16 @@
+#ifndef SENSOR_TASK_H_
+#define SENSOR_TASK_H_
+
+#include "FreeRTOS.h"
+#include "task.h"
+#include "FreeRTOSConfig.h"
+
+#define SENSOR_TASK_STACK_DEPTH configMINIMAL_STACK_SIZE
+#define SENSOR_TASK_PRIORITY (configMAX_PRIORITIES - 1)
+
+extern StackType_t _sensor_task_stack[SENSOR_TASK_STACK_DEPTH];
+extern StaticTask_t _sensor_task;
+
+void sensor_task_main(void *params);
+
+#endif