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--- en:iot-open:practical:hardware:taltech:arduino [2025/06/25 08:49] – created raivo.sell
+++ en:iot-open:practical:hardware:taltech:arduino [2025/07/18 11:01] (current) – ingmar05
@@ Line 1: / Line 1: @@
-====== TalTech AVR Laboratory Hardware Reference ======
+====== TalTech Arduino Laboratory Hardware Reference ======
+===== Introduction =====
+Each laboratory node is equipped with an **Arduino Uno** board. This board is widely used for prototyping and educational purposes due to its ease of use, extensive compatibility with sensors and modules, and a simple programming environment.
+The hardware setup includes several sensors, actuators, and interfaces designed for various practical lab exercises.
+===== Arduino Uno Board Overview =====
+  * **Microcontroller:** ATmega328P
+  * **Operating Voltage:** 5 V
+  * **Digital I/O Pins:** 14 (6 pins provide PWM output)
+  * **Analog Input Pins:** 6
+  * **Clock Speed:** 16 MHz
+  * **USB Interface:** Yes (for programming and serial communication)
+  * **Power Supply:** USB connection or external power supply
+{{:en:iot-open:practical:hardware:taltech:wiring_schematic.png?600|}}
+===== Hardware Components and Pin Assignments =====
+^ Component ^ Model/Description ^ Pins ^ Remarks ^
+| DC Motor | Micromotors Brushed Geared DC Motor, 12V, 20Ncm, 5rpm | Digital pins: AIN1=12, AIN2=11, PWM=3 | Controlled via Pololu TB6612FNG Dual Motor Driver |
+| Servo Motor | SG90 or similar | PWM pin: 10 | Controlled via Arduino Servo library |
+| Fan | 12V DC Fan | Digital pin: 2 | Controlled via digital on/off |
+| Thermistor | Steinhart-Hart Thermistor | Analog pin: A5 | Used for precise temperature measurement |
+| Photoresistor (LDR) | Chanzon GL5549, 10Ω LDR | Analog pin: A2 | Used for ambient light sensing |
+| LCD Screen | Alphanumeric LCD 16x2 (HD44780) | Pins: RS=8, EN=9, D4=4, D5=5, D6=6, D7=7, Buttons input: A0 | Used for displaying text and sensor values |
+===== Additional Hardware =====
+  * **Motor Driver:** Pololu TB6612FNG Dual Motor Driver Carrier
+    * Supports two DC motors independently
+    * Motor voltage range: 4.5 – 13.5 V
+    * Continuous current per channel: 1.2 A (peak 3 A)
+    * Built-in protection: thermal shutdown and undervoltage lockout
+    * Control inputs: Logic-level PWM and direction signals (2.7–5.5 V compatible)
+===== Wiring Diagram =====
+{{arduino_lab_wiring_diagram_placeholder.png|TalTech Arduino Laboratory Wiring Diagram}}
+===== Typical Usage Scenarios =====
+  * [[taltech:arduino:scenarios:lcd|LCD Display Handling]]
+  * [[taltech:arduino:scenarios:servo|Servo Motor Control]]
+  * [[taltech:arduino:scenarios:dc_motor|DC Motor Operation]]
+  * [[taltech:arduino:scenarios:thermistor|Thermistor-based Temperature Sensing]]
+===== Suggested Knowledge Resources =====
+  * Arduino programming fundamentals
+  * Basic understanding of PWM, analog/digital I/O
+  * Use of common Arduino libraries:
+    * ''Servo.h'' – Servo motor control
+    * ''LiquidCrystal.h'' – LCD display handling
+    * Standard Arduino analog/digital I/O functions
+===== Development Environment Configuration =====
+Typical ''platformio.ini'' file configuration for Arduino Uno:
+<code ini>
+[env:uno]
+platform = atmelavr
+framework = arduino
+board = uno
+lib_ldf_mode = deep+
+</code>
+===== Validation and Troubleshooting =====
+Ensure correct wiring and pin configuration as described above. If devices do not respond:
+  * Check pin assignments in software
+  * Verify power connections
+  * Confirm libraries are correctly installed and imported
+If persistent issues occur, consult lab administrators or documentation links provided above.

en/iot-open/practical/hardware/taltech/arduino.1750841365.txt.gz · Last modified: 2025/06/25 08:49 by raivo.sell