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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →You can build an ESP32-DIV as a standalone, open-source wireless toolkit based on an ESP32-S3—but it is not a Flipper Zero clone or an expansion for the Flipper. The project documents a custom touchscreen main board paired with a radio and infrared shield, plus firmware that must match the board revision you have.
What ESP32-DIV is—and how it relates to Flipper Zero
ESP32-DIV is a separate handheld project built around an ESP32-S3. Calling it a DIY Flipper Zero alternative describes its broad role as a portable, multi-function toolkit; it does not mean the hardware, firmware, or accessories are interchangeable. The project documentation describes ESP32-DIV as a standalone device, not as a Flipper Zero expansion. Project overview
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There is a different route for using wireless tools with a Flipper Zero: the ESP32 Marauder guide describes a compatible ESP32 expansion board connected to the Flipper over UART. Marauder runs on that ESP32 board, while a companion app on the Flipper provides an interface. That setup is distinct from building an ESP32-DIV. ESP32 Marauder’s Flipper guide
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsFlipper Zero’s official Wi-Fi Developer Board is another separate device. Flipper’s developer documentation describes it as an ESP32-S2-based debugging and firmware-update accessory; it is not the ESP32-DIV main board or its shield. Flipper Zero developer documentation
#1 Best Overall
- 2.4GHz Dual Mode WiFi + Bluetooth Development Board
- Support LWIP protocol, Freertos
- SupportThree Modes: AP, STA, and AP+STA
- Ultra-Low power consumption, Compatible with Arduino IDE
- ESP32 is a safe, reliable, and scalable to a variety of applications
What the documented hardware includes
The ESP32-DIV project describes two core pieces: a custom main board and a shield. Its overview lists the following components; this is the maintainer’s hardware description, not an independently verified bill of materials.
| Part | Documented hardware |
|---|---|
| Main board | ESP32-S3; 2.8-inch ILI9341 TFT touchscreen; power regulation and battery charging/protection; CP2102 USB-to-serial interface; PCF8574 I/O expander; SD card slot; buttons; antenna connector; NeoPixels; and an optional buzzer. |
| Shield | Three NRF24 modules, one CC1101 module, multiple antennas, and an infrared transceiver. |
The project landing page says open schematics and PCB files are included, making the design inspectable and potentially reproducible by someone with suitable electronics and fabrication access. The documentation reviewed does not establish a complete verified parts list, exact component variants for every item, or current retail availability of a ready-made main-board-and-shield kit. ESP32-DIV hardware documentation
Rank #2
- Dual-Core Performance Up to 240 MHz: Run sensor processing, wireless communication, automation logic and connected-device tasks on a 32-bit dual-core ESP32 platform designed for responsive embedded and IoT projects
- Built-in Wi-Fi and Bluetooth 4.2: Connect to 2.4 GHz Wi-Fi networks or use Bluetooth Classic and BLE for wireless sensors, smart devices, remote controls, home automation and other connected projects
- Flexible Power-Saving Modes: ESP32 power-management features support dynamic clock scaling and low-power operating modes, helping developers reduce energy use in compatible sensing, monitoring and connected-device applications, suitable for battery-powered Internet of Things (IoT) devices.
- USB-C Programming with CP2102: Connect through USB-C for power, sketch uploads and serial monitoring, while GPIO, UART, SPI and I2C interfaces support sensors, displays, motor drivers and other modules (USB-C cable not included)
- Over-the-Air Update Support: Configure OTA functionality through a compatible ESP-32 software framework to update deployed firmware over Wi-Fi without reconnecting the board by USB for every revision
What the project says it can do
The project advertises tools covering Wi-Fi, Bluetooth Low Energy (BLE), 2.4 GHz, sub-GHz, infrared, RFID/NFC, GPS, and system functions. Its feature list includes wireless scanning and monitoring, SD logging, infrared capture and replay, sub-GHz signal profiles, RFID/NFC operations, GPS logging, file management, and firmware updates. These are project-described features, not independent findings about performance, range, compatibility, or whether a particular operation will work in a given environment. Project overview · Feature list
Some listed functions can disrupt or target devices and networks. The project warns: “This project is intended for educational and research purposes only. Use only on networks and devices you own or have explicit permission to test. Unauthorized use may violate local laws.” Follow that guidance and check the rules that apply where you are; the warning is not a jurisdiction-specific legal assessment. ESP32-DIV project warning
Rank #3
- Powerful ESP-32 Board: Unlock the world of Internet of Things (IoT) and advanced electronics with the heart of this kit: the ESP-32 board. It features a powerful dual-core processor, integrated Wi-Fi and Bluetooth 4.2, making it perfect for building connected, smart devices that communicate with your phone or the cloud. It's fully compatible with the Arduino IDE for easy programming.
- Super Starter Kit: This kit contains over 35 different modules and electronic components, including sensors, displays, motors, and input devices. From LEDs and buttons to an OLED screen, servo motor, and keypad, you have everything needed to explore a vast range of projects in one box.
- Step by Step Online Tutorial: Jump right in with our detailed, beginner-friendly tutorial. Access 30+ projects with complete code, clear circuit diagrams, and step-by-step instructions. Learn the fundamentals of electronics, coding, and how to utilize the ESP-32's unique capabilities without any prior experience.
- Hands-on Learning for All Skill Levels: Perfect for students, makers, engineers, and hobbyists. Start with basic circuits and coding, then progress to intermediate and advanced IoT applications. Build practical projects like weather stations, smart home controllers, remote-controlled devices, and interactive gadgets. The skills you learn are the foundation for real-world innovation.
- Quality & Great Support: Elegoo is committed to quality. We provide a clear, detailed tutorial guide, refined code, and a well-organized component kit. All modules are carefully selected for reliability and ease of use. Our dedicated technical support team and active online community are ready to help you succeed in your learning journey.
Plan the build and storage
Treat the custom main board and shield as the core of the build. Before sourcing parts, use the project’s schematics and PCB files to identify the exact revision and component variants required; the summarized hardware list alone is not a complete purchasing checklist. The reviewed documentation does not confirm a retail kit listing, so do not assume that a preassembled set is available.
A microSD card is a practical accessory to consider because the board has an SD slot and the project documents logging and file-related functions. The reviewed project pages do not specify a required card capacity or speed, so no particular specification can be presented as mandatory. Hardware documentation · Feature list
Rank #4
- 2.4GHz Dual Mode WiFi + Bluetooth Development Board
- Support LWIP protocol, Freertos;ESP32 is a safe, reliable, and scalable to a variety of applications
- SupportThree Modes: AP, STA, and AP+STA
- Ultra-Low power consumption, Compatible with Arduino IDE
- 1PCS 30Pin ESP32 Development Board 2.4GHz WiFi Dual Cores Microcontroller Integrated with Antenna RF Low Noise Amplifiers Filters
Choose firmware and flash the correct board
The project’s site displayed version v1.7.2 when accessed. It lists browser, desktop, command-line, Arduino IDE, OTA, and SD update methods, and its browser-based Web Serial instructions specify Chrome or Edge on desktop. Release assets and interface details can change, so check the project’s current instructions before flashing. ESP32-DIV flashing instructions
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- Identify the physical board and revision. Confirm whether you have an ESP32-DIV v2, v1, or a CYD board before choosing firmware. The flashing page lists these as separate targets.
- Open the current flashing instructions. Select a documented method—browser, desktop, command line, Arduino IDE, OTA, or SD update—and follow its current prerequisites.
- Select the matching firmware target. Do not choose a target based only on the device’s appearance or the fact that it uses an ESP32. The firmware target needs to match the actual board.
- Flash and check the result. Use the project’s procedure for the chosen method, then confirm the device starts and the interface responds. If it does not, stop and recheck the board revision and target rather than trying unrelated firmware images.
For comparison, Marauder’s release files distinguish a Flipper Wi-Fi Developer Board target, marked _flipper.bin, from other board targets. That suffix belongs to the Marauder release naming convention; it is not an ESP32-DIV firmware target. Marauder firmware targets
Best Value
- 2.4GHz Dual Mode WiFi + Bluetooth Development Board
- Ultra-Low power consumption, works perfectly with the Arduino IDE
- Support LWIP protocol, Freertos
- SupportThree Modes: AP, STA, and AP+STA
- ESP32 is a safe, reliable, and scalable to a variety of applications
Which route fits your goal?
| Route | Platform and hardware | Interface and setup distinction |
|---|---|---|
| ESP32-DIV | Standalone ESP32-S3 main board with a touchscreen, paired with a shield listing NRF24, CC1101, and infrared hardware. | Uses ESP32-DIV firmware for the actual board revision; the project documents several update methods, including browser Web Serial on desktop Chrome or Edge. |
| Flipper Zero with ESP32 Marauder | Flipper Zero communicates over UART with a compatible ESP32 expansion board; Marauder runs on the ESP32. | A Flipper companion app provides the interface. Marauder has separate firmware targets, including a Flipper Wi-Fi Developer Board target. |
| Flipper Zero Wi-Fi Developer Board | Official ESP32-S2-based accessory for debugging and firmware updates. | It is a Flipper developer accessory, not the ESP32-DIV main board and shield. |
These are different hardware paths, not performance tiers. The cited project documentation does not provide independent comparative testing that would support ranking their range, effectiveness, or feature compatibility.
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