![]() You can easily check the browsing speed delivered by the ESP32 WiFi repeater. You’ll see that the ESP32 NAT Router is available as a different WiFi network with access to the Internet. Under the “AP Settings,” set the SSID and password that you’d like to use for the ESP32 NAT router and then tap the “Set” button. Under the STA settings, fill in the SSID and password of your existing WiFi network and tap the “Connect” button. Next, open the browser and enter the following address: “.” You should see the ESP32 NAT Router configuration page as shown below. You should see “ESP32_NAT_Router.” The configuration of the router can be done from any device, including from the PC or a smartphone.Ĭonnect to the “ESP32_NAT_Router” network from the WiFi settings of your PC or mobile. After unplugging and re-plugging, it will appear as one of the available WiFi networks. Now, it’s time to configure the ESP32 repeater. Unplug ESP32 and plug it back into the PC to restart the board. Once, the firmware is loaded, release the boot button on ESP32. ![]() Press the boot button on ESP32 and click “START.” The firmware should flash on the board in a few seconds. Leave the other settings (SPI SPEED and SPI MODE) as is. Next, connect the ESP32 board to your PC through the Micro-USB cable. Remember to select the checkboxes before all three rows. Assign 0x1000 to the bootloader.bin, 0x10000 to the firmware.bin, and 0x8000 to the partitions.bin. Next, you must specify the hex code, which indicates the storage location for each file in the flash memory. Follow suit and browse and load the firmware.bin and the partition.bin files (in the second and third rows). The build modules for ESP32 NAT firmware are in the ~\esp32_nat_router-master\build\esp32 folder.įrom the SPI download tab (in the Flash Download Tool), browse and load bootloader.bin. Next, find the location of the firmware files. Select “Run as administrator” from the drop-down menu.įrom the pop-up window, choose the “ESP32” Chip Type and the “Develop” WorkMode.Ĭlick “OK,” and a window with the ESP32 Flash Download Tool will open. Open the Flash Download Tool folder and right-click on the executable file. ![]() To upload the firmware to ESP32 from the Flash Download Tool, you msut run the executable as administrator. Unzip both flash download tools and the ESP32 NAT router firmware on your Windows PC. Visit the link, click on the “Code” tab, and select “Download ZIP.” It will also download as a ZIP file. You’ll also need the firmware for the ESP32 NAT router, which can be downloaded from this GitHub link. Unfortunately, it’s only available for Windows PC. To build this project, install the ESP Flash Download Tool from Espressif website. Building this project simply requires loading the firmware to ESP32 and making the correct configurations. There’s firmware available on the GitHub repository for creating the NAT router. Interestingly, you need not program the ESP32 to use it as an expander. You can also use a Micro-USB cable and power adaptor to keep the ESP32 WiFi repeater ON at all times once the WiFi repeater is built and configured properly. After loading the firmware, the router configurations can be set from a smartphone. You’ll only need an ESP32 board to build the WiFi repeater and a PC to flash the new firmware. In this project, we’ll convert an ESP32 development board into a WiFi range extender. It can serve as a separate WiFi network with different SSID and password for guests or be converted into a corporate WiFi network or a regular network for simple devices.Ī WiFi NAT router setup with ESP8266 or ESP32 delivers browsing speeds of greater than 15 Mbps. ![]() Older versions of ESP8266 or ESP32 can be converted into a WiFi a NAT router, which can then be used as a range extender. Both ESP boards are popular WiFi development platforms often used for IoT devices. It’s possible to build a WiFi range extender using ESP8266 or ESP32. A range extender boosts the WiFi signals by using built-in radios and antennas that pair wirelessly with the router. This has become more common with the increase in smart appliances and devices, which connect via WiFi to “talk” to one another or the home automation hub.Ī common solution to this problem is using a range extender or WiFi repeater. The number of active devices connected to the router can also impact the browsing speed. The WiFi signals could be completely lost on other floors of a premise. The same is true of thick walls or additional floors in a home or building. The further away you move, the weaker the signal. The signals are strongest near the router. Typically, a WiFi network has a range that’s above 45 meters.
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