A CAM module (Conditional Access Module) is a CI+ Card that Digital TV operators provide to you, when you subscribe to their premium programmes. It is a small device with a smart card which allows your television to decode digital channels, and also offers security against tampering. It is a very common feature on most digital TVs and can be removed and replaced as needed.
CAMs are available in two formats: standard and professional, designed for use on a single television or with a rack of receivers. They are tamper-resistant and come with a’smart card’, burnt into memory, which authenticates the system.
To connect your CAM to your digital TV, you must insert it in the correct way and ensure that it is fully powered up before use. Often, the sticker on the front of the card will give you this information. In some cases, the chip will be on the opposite side of the CAM to the sticker, and you need to carefully examine this before inserting it into your TV.
For the best quality, you should aim to use a CAM with a resolution of at least 720p or higher. This will mean that your pictures will be large enough to view comfortably on a TV screen and will not look too cropped or over-exposed when viewed from a distance.
There are many other options for your CAM, and you can find plenty of useful guides online to help you choose which one is the best for your project. You may wish to consider a card with a wide field of view or a camera with a longer cable length.
Once you have your CAM and the right settings, it is time to get it connected to your network. To do this, we need to make a connection using an FTDI adapter. This will allow us to program the ESP32-CAM via the FTDI serial port and then enable it to send a live video stream over the internet.
To do this, we first need to connect the ESP32-CAM module to the FTDI adapter and then to your computer. Then, we can program the ESP32-CAM in the Arduino IDE.
Using the Arduino IDE, we will now need to add the Camera WebServer example sketch. This will then allow us to connect the ESP32-CAM to our WiFi network, and set up the camera webpage for it.
Now that the sketch is compiled and ready to go, we need to set up the device with the correct WiFi network SSID and password. Once we have this info, we can then upload the code to our ESP32-CAM and then configure it as a web server.
This process is relatively easy and the ESP32-CAM will be ready for use in just a few minutes! Depending on your WiFi network and the strength of your signal you should be able to stream high-quality live video from your device. This can be an ideal solution for home or office monitoring projects, and a handy tool for testing new software applications and hardware without having to invest in additional cameras.