1. Introduction

JetBot AI Kit - Waveshare Wiki

Features

• Onboard three 18650 batteries, 7800mAh, up to 12.6V voltage output, and stronger motor power.
• Onboard S-8254AA + AO4407A lithium battery protection circuit, with anti-overcharge, anti-over-discharge, anti-over-current and short-circuit protection functions.
• The onboard APW7313 voltage regulator chip can provide a stable 5V voltage to the Jetson Nano.
• The onboard TB6612FNG dual H-bridge motor driver chip can drive the left and right motors to work.
• Onboard 0.91-inch 128 × 32 resolution OLED, real-time display of car IP address, memory, power, etc.
• The onboard ADS1115 AD acquisition chip is convenient for real-time monitoring of battery power.

2. Driver and Motors

<aside> 💡 3장에서 RCCar parameter를 아래와 같이 jetbot로 선택해주세요.

</aside>

./jetRccarParam.sh jetbot

3. I2C address check

0x60이 PCA9685 주소입니다.

jetson@jp4614GPy37:~$ sudo i2cdetect -r -y 1
[sudo] password for jetson: 
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- -- 
40: -- -- -- -- -- -- -- -- 48 -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: 60 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: 70 -- -- -- -- -- -- --

그 외 I2C에 대해서는 아래 글을 참고하세요

Waveshare Jetbot AIKit 확장보드 분석

4. Circuit Diagram