WSAL12910 – AlphaBot2-Ar/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

Technical overview of the AlphaBot2-Ar kit for Arduino, covering hardware components, sensors, control programs, and calibration.

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Technical overview

The kit consists of the AlphaBot2-Base chassis and the AlphaBot2-Ar adapter board. Assembly is snap-together without soldering or wiring.
The chassis includes a TB6612FNG motor driver, two N20 DC motors with 1:30 gear reduction (6 V/600 RPM), rubber wheels (42 mm diameter, 19 mm width), and a battery holder for 14500 cells.
The adapter board provides an Arduino socket, an Xbee connector for Bluetooth modules, an IR receiver, a PC8574 I/O expander, a TLC1543 10-bit ADC, a 0.96-inch SSD1306 OLED (128x64), and a joystick.
If wheel direction is wrong, adjust pin settings AIN1/AIN2 (left wheel) and BIN1/BIN2 (right wheel).
Infrared remote uses numeric keys: “2” forward, “8” backward, “4” left, “6” right, “5” stop; “+”/“-” adjust speed, “EQ” resets it.
Ultrasonic ranging program requires the serial monitor baud rate set to 115200.
Infrared line tracking requires calibration: hold the robot on a black line, swing it side-to-side so max/min thresholds are detected.
OLED example programs demonstrate character display and basic drawing; the corresponding libraries must be installed in the Arduino IDE folder and the IDE restarted.

Notes and version constraints

Infrared remote key encoding may vary by model; adjust the program as needed.
Ultrasonic distance readings can be inaccurate when obstacles are not directly in front but at an angle.
Line-tracking calibration directly affects tracking performance; recalibrate if behavior is incorrect.
There is no smart charging system; the battery is fully charged when the charge LED turns off.
Bluetooth control requires removing the module before flashing the program, then reinserting it.

Source and revision record

AlphaBot2-Ar - Waveshare Wiki
Source revision: 81562
Captured: 2026-08-30T03:35:04+00:00
SHA-256: 31356f8fd9f6ef0d72859adcd66a3e20c03e84b64fbedfbccd29f134d7f4cb6a