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Robotling2

Robotling2 is a small, simple 6-legged robot using the new Raspberry Pi microcontroller RP2040 as brain. To move around, it uses a simplified tripod walk that requires only three servo motors - inspired by a 20 year old book called "Insectronics".

Features

• Robotling2 PCB hosts a RP2040 Pico
• Board controls 3 servos and features a "sensor port" with connectors for 3 analog sensors (5V-tolerant), 1 digital I/O, I²C, and UART, as well as 5V and 3.3V power.
• Fits an optional color display (Pico Display Pack)
• All parts 3D printed (except battery case)
• Requires only 3 micro servos (e.g. Tower Pro MG90)
• Runs on a ~1Ah 1-cell Lipo battery

History

For project history, see release notes in ReadMe.

Publications

Robotling2 was introduced as a community project in the German Make issue 6'2021. The CO2-sensing version was featured in Make issue 2'2023.

Cover picture(s): Heise-Verlag. Editor: Carsten Wartmann.

Content

Home

1. Werkzeuge und Material (DE | EN)
2. Aufbau
   2.1 Mechanik (DE | EN)
   2.2 Aufbau und Hinweise (DE | EN)
   2.3 Elektronik und Platine (DE | EN)
3. Sensoren (DE | EN)
4. Demo (DE | EN)
5. Erweiterungen & Modifikationen
   5.1 Alternatives Display (DE | EN)
   5.2 CO2-Wächter (DE | EN)
6. Galerie (DE | EN)
7. Software - MMBasic
   7.1 MMBasic zum Laufen bringen (DE | EN)
   7.2 Kommentare zum Programm (DE | EN)
   7.3 Robotling API (DE | EN)
   7.4 Building PicoMite MMBasic (DE | EN)
8. Software - MicroPython
   8.1 Running MicroPython (DE | EN)
   8.2 Building MicroPython (DE | EN)

Repository structure

├───boards                         PCB as .fzz (Fritzing), BOM as .pdf
├───code                           
|    ├───mmbasic                   MMBasic code
|    └───micropython               MicroPython code
├───mods
|    ├───c_otto                    MicroPython code by C. Otto
|    |    └───robotling_lib
|    └───c_wartmann                Blender files by C. Wartmann
|         └───STL
├───pictures                       Pictures for WiKi
└───printed_parts                  Printed parts, .stl, .fcstd
     ├───FreeCAD_files             Original FreeCAD files
     ├───mods_c_otto               Additional FreeCAD, .stl files by C. Otto
     └───deprecated