WSAL20282 – PicoGo/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

The PicoGo is a mobile robot based on the Raspberry Pi Pico. It integrates ultrasonic, LCD, Bluetooth, line-tracking and obstacle-avoidance modules to enable autonomous driving and remote control.

Related products at JW Tech

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Technical overview

• Base board: Standard Raspberry Pi Pico header, compatible with the Raspberry Pi Pico series.
• Drive motors: Two N20 micro gear motors with metal gears for low noise and high accuracy.
• Sensors: Five-channel infrared sensor (analog output) combined with a PID algorithm for stable line tracking; additional infrared obstacle-avoidance module.
• Ultrasonic module: Measures distances; accuracy can be affected by angled reflective surfaces.
• Display: 1.14-inch IPS color display with 240 x 135 pixels and 65K colors.
• Bluetooth: Integrated module enables remote control via a smartphone app (Android); select device name “jDY-33-SPP”, not “JDY-33-BLE”.
• Battery: Supports 3.7 V 14500 rechargeable batteries (not included). Note polarity when inserting; if reversed, the warning indicator lights up and the self-recovery fuse overheats—correct immediately.
• Power supply: The onboard infrared obstacle sensor, RGB LEDs, and motors require a 5 V power supply. Without the power switch turned on, these functions will not work correctly.
• RGB LED: Four colored LEDs at the bottom of the robot display various color values.
• Line tracking: Can detect black lines on a white background; the black track width is 15 mm.

Commands and examples – verify before use: 

IRremote.py
Infrared-Obstacle-Avoidance.py
Ultrasonic_Ranging.py
Ultrasonic-Obstacle-Avoidance.py
Ultrasonic-Infrared-Obstacle-Avoidance.py
WS2812.py
ST7789.py
Battery_Voltage.py
TRsensor.py
Line-Tracking.py
Line-Tracking2.py
Ultrasonic-Infrared-follow.py
bluetooth.py

Notes and version constraints

• The ADC chips differ between version 1 and version 2; the tracking demos are not compatible, although the functional effects are the same.
• Different infrared remotes may have different key codes; when using other remotes, the codes may need to be modified.
• During the calibration phase of line tracking, the motors rotate left and right; errors in this phase directly affect the tracking result.
• The battery percentage display is based on a simple linear conversion of voltage; since actual voltage and charge are non-linear, errors occur.
• When replacing batteries, the power supply must remain connected to the PicoGo, otherwise the device cannot be powered normally.
• For cable-free operation, the demo must be saved as main.py; otherwise, errors may occur indicating that modules cannot be found.

Source and revision record

• PicoGo - Waveshare Wiki
• Source revision: 105242
• Captured: 2026-09-02T03:39:24+00:00
• SHA-256: 26a19be42efd85e2fc0ba2791596523d98661c13a7c0d2dbebaf0d1619cf5d2b