ESP32-CAM AI-Thinker Pinout Guide: GPIOs Usage Explained.

We have more projects and tutorials about the ESP32-CAM that you may like: We hope you’ve found these tips about the ESP32-CAM antenna useful. If you’re having other problems/errors with your ESP32-CAM projects, take a look at our troubleshooting guide – ESP32-CAM Troubleshooting Guide. If you connect an external antenna, take a look at your board to see if it has the right connection to actually use the external antenna. If you’re having issues with your video streaming projects with the ESP32-CAM: constant lag and very slow web servers, adding an external antenna might solve those problems. Learn how to program and build 17 projects with the ESP32-CAM using Arduino IDE DOWNLOAD » Wrapping Up

ESP32-CAM with antenna: RSSI of approximately -36.

ESP32-CAM without antenna: RSSI of approximately -60.

In our case, with a distance of approximately 5 meters (16.4 feet) to the router with obstacles in between (walls), we got the following results: When testing the signal strength, the closer the value to 0, the stronger the signal is. #include 'WiFi.h'Ĭonst char* ssid = 'REPLACE_WITH_YOUR_SSID' Ĭonst char* password = 'REPLACE_WITH_YOUR_PASSWORD' You can upload the following code to your ESP32-CAM boards to check the signal strength of the connection to the router (RSSI – Received Signal Strength Indication). Testing the ESP32-CAM Wi-Fi Signal Strength When getting an ESP32-CAM, there are stores that offer the package with an external antenna:

Note: You can’t use the two antennas at the same time, so you can only have one connection for the antenna. You can also drop some solder to connect those points (you don’t necessarily need to add the resistor as long as the pads are connected).

To enable or disable the on-board antenna, you just need to unsolder that resistor and solder it in the desired configuration. So, make sure you get one to have your projects working reliably. Projects with video streaming crash frequently when you don’t use an external antenna due to poor connectivity. We recommend using the IPEX connector with an external antenna for better results. Using the on-board antenna works well if you are close to your router.

Take a look at your board to see if it is set to use the on-board antenna or the IPEX connector.

Rssi range wifi