Timer Camera - UIFlow MediaTrans

Feature Introduction

Use TimerCAM to implement low-power timing wake-up photography functions, which rely on Wi-Fi connection. The captured images will automatically be uploaded to the M5 cloud, and a unique token will generate a fixed HTTP interface. Other devices can access this interface to obtain the latest frame image and the current battery voltage status of the device.

Driver Installation

Connect the device to the PC and open the device manager to install the FTDI driver for the device. For Windows 10, download the driver file matching your operating system, and unzip it. Install it through the device manager. (Note: In some system environments, it may be necessary to install the driver twice for it to take effect. Unrecognized device names are usually M5Stack or USB Serial. Windows recommends using the driver files directly in the device manager for installation (custom update). The executable file installation method may not work properly.) Click here to download the FTDI driver

For MacOS users, before installation, please check System Preferences -> Security & Privacy -> General -> Allow apps downloaded from: -> App Store and identified developers option.

Download the Firmware Burning Tool

Please download the M5Burner firmware burning tool according to your operating system. Unzip and open the application.

Note:
MacOS users should place the application in the Application folder, as shown below. Linux users should navigate to the unzipped file path, run ./M5Burner in the terminal to launch the application.

Firmware Burning

Open M5Burner -> Connect the device to the computer -> Select the corresponding port -> Switch to the TimerCam option -> Choose the appropriate version and click download -> Configure the appropriate parameters -> Click Burn to start burning -> Wait for the successful popup window to indicate that the burning is complete.

WIFI SSID: WIFI name, be careful not to include special characters
WIFI PASSWORD: WIFI password (Note: WIFI password is a required field and cannot be empty. It is recommended to use a WIFI hotspot with a password)
Image Size: Image size
Wake Time: Image sending interval, it is recommended to set the interval to more than 30s.

TOKEN Acquisition

Click Get Token to obtain -> Wait for the Token popup, the displayed string is the Token. It can also be obtained by scanning the QR code or directly opening it in the browser.

HTTP Interface

The request method is GET, and it returns JPG image data. The device voltage value will be included in the Voltage field of the HTTP Response Headers.

//GET
//http://api.m5stack.com:5003/timer-cam/image?tok=token

http://api.m5stack.com:5003/timer-cam/image?tok=8caab58179bc02d5435c653acbe03966

UIFlow Programming

Use M5CORE devices in UIFlow to automatically retrieve images through the HTTP interface and display them on the screen.