A machine learning bot.
Ml robot is an open-source printed circuit board by matthieu-sgi, from the matthieu-sgi/machine_learning_robot repository on GitHub. It is a 2-layer board of 85.4 × 100 mm with 16 parts on 45 nets, routed with 231 tracks and 3 vias.
It is built around the ESP32-S3-DEVKITC-1-N8R2. Its parts include 5 connectors, 3 capacitors, 2 ICs and 1 switch. It belongs with the robots and motor control boards and the ESP32 boards of this library.
The machine learning bot is a project of making an OpenSource robot that will be able to learn from its environment and adapt to it using machine learning.
The robot is based on a FREENOVE ESP32 S3 MCU and its camera. It also includes a LIDAR. The mechanical part is based on a Adafruit 3216 chassis.
The robot is based on a FREENOVE ESP32 S3.
In addition to the included camera, we bought this camera. The ribbon cable is longer than the included one and it allows to position it on the front of the robot.
The LIDAR used is a LD06 from innomaker (datasheet).
The chassis chosen is very tiny. It includes only two frame for two stages. To gain space, we decided to build and make a full PCB stage. Allowing the robot to go from 2 to 3 stages.
The PCB project can be found in the pcb folder.
3D view of the PCB:
| Front 3D view | Back 3D view |
|---|---|
 |  |
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3 |
| 1 | 100kΩ | potentiometer_custom:Potentiometer_Piher_PC-16_Single_Horizontal | RV1 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | ESP32-S3-DEVKITC-1-N8R2 | custom_esp32:XCVR_ESP32-S3-DEVKITC-1-N8R2 | U1 |
| 1 | LOGO | ift_logo:logo_20 | G*** |
| 1 | Motor1 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J2 |
| 1 | Motor2 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J3 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | TB6612FNG | Package_SO:SSOP-24_5.3x8.2mm_P0.65mm | U3 |
| 1 | ext_power | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J5 |
| 1 | jmp_alim | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | lidar_conn | B4B-ZR_LF__SN_:CONN_B4B-ZR_LF__SN__JST | J1 |
The 13 most common of 16 parts.
It measures 85.4 × 100 mm and has 2 copper layers, 1.6 mm thick.
16 parts, built around the ESP32-S3-DEVKITC-1-N8R2. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the matthieu-sgi/machine_learning_robot repository on GitHub, at the commit this page was made from: the board is PCB/ml_robot.kicad_pcb and its schematic PCB/ml_robot.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask matthieu-sgi before reusing the design.
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