I've been watching the Flipper Zero hype train roll by for a while now. It's a cool gadget, no doubt. But for the price and the waiting list, I've always thought there had to be a more practical, hackable alternative. The ESP32-DIV might be it.
It's an open-source platform built on the ESP32 and ESP32-S3 microcontrollers — chips that cost a few bucks and are everywhere. According to the article, it supports "Wi-Fi, Bluetooth, RFID, NFC, sub-GHz, and IR communication." That covers just about everything you'd want for wireless experimentation.
The hardware comes in a few flavors. There's a compact V1, a beefier V2 with the ESP32-S3, and a pre-assembled CYD board with a touchscreen. The CYD version is what I'd recommend for anyone who just wants to get started without fumbling with breadboards. It includes a TFT display, battery management, and even WS2812 NeoPixel LEDs for status feedback. You can flash firmware via a browser-based Web Flasher or Arduino IDE for more control.
What makes this interesting is the sheer range of wireless capabilities. The article notes you can do "network scanning, packet monitoring, beacon spamming, deauthentication attacks" on Wi-Fi, plus BLE scanning, RFID cloning, IR replay, and even GPS-based war driving. The quote that stood out to me: "Its RFID and NFC capabilities enable cloning, decoding and security testing." This isn't a toy — it's a real signal analysis tool.
Is it as polished as a Flipper? Probably not. But it's open-source, extensible, and runs on hardware you can source for under $20. For anyone in South Bend tinkering with IoT security or just wanting to understand how wireless systems work, this is worth a look. I'm ordering a CYD board this week to test it myself — I'll report back.
"Wi-Fi, Bluetooth, RFID, NFC, sub-GHz, and IR communication." "Its RFID and NFC capabilities enable cloning, decoding and security testing." "Conduct network scanning, packet monitoring, beacon spamming, deauthentication attacks, captive portal creation and probe flooding."
Source: https://www.geeky-gadgets.com/esp32-div-flipper-zero-alternative/