The Smart Industrial Helmet's main function is live voice and video transmission. The Orange Pi Zero 2W has two USB-C ports that we can use to connect a USB camera. To control a USB camera, we need to:
Connect to our Orange Pi Zero 2W via ADB: adb connect <ip_orangepi>
Download and install USB Camera APK: adb install usb-camera.apk
USB Camera will detect the webcam and through AnyDesk (Part I) we can connect remotely to Orange Pi Zero 2W and we have video/voice in real time.
As an alternative to AnyDesk, the app allows us to raise the camera with audio on a web server, for that we activate the IP Camera Server option:
Power supply by Shield 18650 V8
The Orange Pi Zero 2W power consumption is very low and thanks to the 18650 V8 Shield we can make our SBC portable.
This module is a portable mobile power supply with two voltage outputs: 3V/1A and 5V/2.2A. The rated 5V output current is 2.2A, and the maximum supported current is 3A (not recommended for overcharging, as this may damage the module and extend its life). The output current depends on the quality of the 18650 battery.https://www.diymore.cc/collections/hot-sale/products/18650-battery-shield-v8-mobile-power-bank-3v-5v-for-arduino-esp32-esp8266-wifi
In summary, we already have:
Our Orange Pi Zero 2W, powered by a 18650 battery pack.
Android TV 12 with a USB camera app that gives us real-time video and voice.
All that's left is the final assembly on the helmet. In the next article, we'll cover 3D printing all the helmet mounts and their final installation.