• sales

    +86-0755-88291180

Jetson Nano UPS Power Module User Guide

Introduction

UPS Power Module For Jetson Nano, 5V Uninterruptible Power Supply, Multi Battery Protection Circuits

Features

  • I2C bus communication, monitoring the batteries voltage, current, power, and remaining capacity in real-time
  • 0.91" OLED for displaying info like batteries voltage, IP address, RAM usage, etc.
  • Multi battery protection circuits: overcharge/discharge protection, over current protection, short circuit protection, and reverse protection, along with the equalizing charge feature, more safe and stable
  • Onboard 5V regulator, up to 2.5A continuous output current
  • Batteries warning indicators, easy to check if the battery is connected correctly

Specifications

  • Output Voltage:5V
  • Charger:8.4V 2A
  • Conttrol bus:I2C
  • Supported battery:18650 Li battery (NOT included)
  • Dimension:113mm × 79mm
  • Mounting hole:2.5mm

Hardware


The 8.4V interface is the charge port. You can plug the 8.4V 2A charger provided for charging the batteries.
The switched is the power switch, you can turn it into ON/OFF to turn on/off Jetson Nano Developer Kit
WARNING LED are the indicators of batteries, they turn on if you reverse batteries.
Note 1: Please check the WARNING LED when you mounting batteries, make sure that you set all the batteries in the correct way. You cannot charge batteries if you reverse them.
Note 2: The board may not work when you mount the batteries for the first time, you need to charge batteries on board for a while to activate them.
Note 3: Please use the charger provided, the module may be destroyed by other unsuitable power adapters/chargers.

How to use

You should connect the UPS Power Module with your Jetson Nano Developer Kit by the 6PIN cable. You should connect 5V to 5V, 3.3V to 3.3V, otherwise, you may destroy the Jetson Nano Developer Kit because of wrong connection.


Open a terminal and install the display code by the following command. The codes are used for display information on OLED like the voltage, current, etc.

git clone https://github.com/waveshare/UPS-Power-Module
cd UPS-Power-Module
sudo ./install.sh

OLED will display the IP address, battery voltage, current and the percentage of battery quantity, as well as the CPU, GPU and memory information after starting the server.
Note: if the current value is negative, it means that the batteries are feeding the Jetson Nano Developer Kit. If the current value is positive, it means that the batteries are charging.



If you want to print the battery information to the terminal you can refer to the following script.

https://github.com/waveshare/UPS-Power-Module/blob/master/ups_display/ina219.py

The script can be run by the following command.

python3 -m ups_display.ina219

The information printed should be as below

TAG: Raspberry Pi 5 PCIe to 2-CH PCIe FFC Dual PCIe HAT Board Pi5 Double Jetson Nano PWM Fan Computer ESP32-S3 Development Board 1.47 inch LCD Screen Display 172x320 SD-Port LVGL USB Raspberry Pi 5 PCIe to 4-CH M.2 NVMe 4-Ports SSD Board HAT Pi5 Four-Times Raspberry Pi 4 USB Audio Raspberry Pi UGV Rover PT Kit AI OpenCV Robot Car MediaPipe For Jetson Orin 0.49inch OLED Screen Display 64×32 SSD1315 Arduino Raspberry Pi ESP32 Pico STM32 Raspberry Pi 5 PCIe to M.2 5G/4G/3G HAT With RM520N-GL i5-1135G7 SpotPear ESP32-S3 Nano ESP32-S3R8 development board compatible with Arduino Nano ESP32 Allwinner H618 Raspberry Pi 7inch DSI Computer Monitor Screen RS232/485/422 To CAN Arduino Thermal imaging camera Raspberry Pi 5 Official Original AI Kit Hailo8l 13Tops/26Tops PCIe M.2 HAT+ Board For Pi5 1.3inch LCD RP2040-PiZero Game ST7789 Raspberry Pi Pico LCD Display Screen