General Driver for Robots

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General Driver for Robots
General Driver.png

UART, TTL, IIC, I/Os
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Overview

Introduction

The multifunctional driver board specially designed for robots provides more possibilities for robots. Based on the ESP32-WROOM-32 module, Arduino IDE can be used for development, and it supports a variety of wireless communication methods, including WIFI, Bluetooth, and ESP-NOW.

Onboard versatile commonly used robot component interfaces, including DC motor interface with encoder, DC motor interface without encoder, bus servo interface, IIC interface, Lidar interface, PWM servo interface, SD card slot, etc.

A variety of resources are on board, which is convenient for robot project construction, including a 9-axis IMU, temperature sensor, automatic download circuit, Lidar serial port to USB circuit, bus servo control circuit, etc.

The PWM servos used in this board do not support the MG996R Servo and MG90S Servo sold on the official website, as well as other high-power PWM servos. The recommended PWM servo for this driver board is the WP90 Servo.

Features

  • Based on the ESP32-WROOM-32 module, supports wireless communication methods such as WIFI, Bluetooth, and ESP-NOW.
  • Onboard motor control interface for 2x DC motors with encoder or 4x DC motors (two groups) without encoder.
  • Onboard serial bus servos control interface for controlling up to 253 ST3215 serial bus servos and obtaining servo feedback.
  • Onboard 9-axis IMU can obtain attitude and heading information at any time.
  • 7~13V voltage input can be powered directly by 2S or 3S lithium battery.
  • Automatic download circuit for easy uploading demos.
  • Support input voltage and current monitoring.
  • Onboard TF card slot.
  • Onboard Lidar interface and integrated UART to USB function.
  • IIC interface for expanding other peripherals such as OLED, IMU, and other IIC communication protocols.
  • Multi-functional extended interface, adapting to remaining interfaces for additional functions, such as controlling servos or relays.
  • 40PIN extended header for connecting to Raspberry Pi, Jetson Nano, and other host computers, communicating via serial port or IIC, and powering the host computer.
  • Provides open-source demos for onboard resources, and online detailed tutorials for beginners to get started.

Parameters

Main Controller ESP32-WROOM-32
Power Supply DC 7-13V
Power Port XH2.54
Antenna Connector IPEX1
Download Interface Type-C
Control Chip ESP32
Wireless Communication WIFI, Bluetooth, ESP-NOW
Dimensions 65 x 65mm
Mounting hole spacing 49 x 58mm
Mounting hole diameter 3mm

Onboard Resources

General Driver for Robot02.jpg

No. Onboard Resources Introduction
1 ESP32-WROOM-32 main controller Can be developed with the Arduino IDE
2 IPEX1 WiFi connector For connecting the WIFI antenna to increase the wireless communication distance
3 LIDAR interface Integrated radar adapter board function
4 IIC peripheral expansion interface Can be used to connect OLED screens or other IIC sensors
5 Reset button Press and release to reboot the ESP32
6 Download button The ESP32 will enter the download mode when the power is turned on by pressing
7 DC-DC 5V voltage regulator circuit Power supply for host computers such as Raspberry Pi or Jetson nano
8 Type-C connector (LIDAR) LIDAR data interface
9 Type-C connector (USB) ESP32 UART communication interface, can upload programs for ESP32
10 XH2.54 power port Input DC 7~13V, this interface directly powers the serial bus servo and motor
11 INA219 Voltage/current monitoring chip
12 Switches Switches to control external power supply
13 ST3215 serial bus servo interface For connecting to ST3215 serial bus servo
14 Motor interface PH2.0 6P Group B interface for motor with encoder
15 Motor interface PH2.0 6P Group A interface for motor with encoder
16 Motor interface PH2.0 2P Group A interface for motor without encoder
17 Motor interface PH2.0 2P Group B interface for motor without encoder
18 AK09918C 3-axis electronic compass
19 QMI8658 6-axis motion sensor
20 TB6612FNG Motor control chip
21 Serial bus servo control circuit Can be used to expand multiple ST3215 serial bus servos and obtain servo feedback
22 SD card slot Can be used to store logs or WIFI configurations
23 40PIN extended header Easy access to Raspberry Pi or Horizon Sunrise X3 Pi
24 40PIN extended header Easy to use the pins of the host computer installed on the driver board
25 CP2102 UART to USB for radar data transfer
26 CP2102 UART to USB for ESP32 UART communication
27 Automatic download circuit Upload demos for the ESP32 without pressing the EN and BOOT buttons

Main Usage

Onboard Rich Peripheral Interfaces For Driving Various Robots

  • Crawler Robot
  • Four-wheel drive UGV
  • Two-wheel drive AGV
  • Balance car
  • Robotic arm
  • Pan-tilt

Module Usage Tutorial

The above tutorial takes the complete demo of the UGV01 product as an example to explain how to use the Arduino IDE to upload the demo. You can replace the demo with the demo in the follow-up tutorial to the driver board.

Resource

Open-source Demo

Circuit Diagram

Dimensions And Drawings

Model

FAQ

 Answer:

Limited by the switch, the long-time current output is up to 5A. The number of the servos depends on the operation. Take the ST3215 Servo as an example, it supports up to 5 servos (note that there is no locked-rotor situation in these 5 servos.)

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Support



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