The world of microcontroller boards has experienced a new revolution thanks to the launch of the FlexiPi, a flexible version of the well-known Raspberry Pi Pico. This clone, developed using a flexible printed circuit board (PCB), comes to the market with the aim of offering a more versatile solution, especially for those projects that require a board that can be bent or adjusted to tight spaces or curved surfaces.
One of the most notable differences of the FlexiPi compared to its predecessor is the incorporation of a USB-C port instead of the microUSB found on the original Raspberry Pi Pico. While it may seem like a minor change, this small update offers greater compatibility with modern devices and improved power management and data transfer.
The development of the FlexiPi has been compared to the Flexduino, another project that also uses a flexible PCB, but in this case based on the model Arduino UNOHowever, the FlexiPi's slimmer, compact design makes it a more attractive option for certain projects, as its small footprint 51 × 21 mm allows it to be inserted into places that are difficult to access or that require a more adaptable shape.
FlexiPi Specifications
The FlexiPi comes equipped with the same microcontroller as the Raspberry Pi Pico: the RP2040, a powerful dual-core Cortex-M0+ processor that runs at a base frequency of 48 MHz, but can be increased up to 133 MHz. As for storage, it includes a QSPI flash memory of 2MB, which is sufficient for medium and small projects.
Among the highlights of the plate we find:
- A port USB Type-C 1.1 which is used for both power and programming of the device.
- A 26 GPIO expansion, which includes additional functions such as 2 UART ports, 2 I2C, and 16 PWM channels, which allows its use in a wide range of applications.
- A temperature sensor of 12 bits, which can be useful in projects involving environmental monitoring or temperature control.
- A debug connector Serial Wire Debug (SWD) 3-pin, ideal for debugging and real-time monitoring of programs during development.
- Other features like a button BOOTSEL or with a RGB LED WS2812, offering an additional level of interaction and visual customization.
In addition, the plate is powered by a DC input. 5V via the USB port or from an external power supply with a range between 1.8V and 5VThis gives it great flexibility in terms of power options, adapting to different usage scenarios.
Compatibility and Software
One of the great advantages of the FlexiPi is its full compatibility with the Raspberry Pi Pico software. This means that developers will be able to use the same SDKs and programming languages, including the popular MicroPython, C/C++, Arduino and CircuitPython. This makes the transition from one device to the other easy for those who have previously worked with the Raspberry Pi Pico or any other device compatible with the RP2040 microcontroller.
To make it even easier to use, the company behind FlexiPi, TOP Gadgets, has created beginners' guides in eBook format, available for the C, MicroPython, and CircuitPython platforms. This ensures that even those who are new to the world of programming and electronics can get started with this board quickly and efficiently.
Various cost factors
One of the main disadvantages of the FlexiPi is its cost. Being manufactured in low volumes, the production price of the flexible PCB is significantly higher compared to the traditional Raspberry Pi Pico board. So much so that the FlexiPi sells for approximately $20 in its Kickstarter funding campaign, which is five times the price of the original Raspberry Pi Pico, which costs around $4.
However, those interested in purchasing multiple units can benefit from more competitive pricing. A package of 10 FlexiPi boards reduces the unit price to $18.50, a small saving for larger projects or group purchases. It should be noted that shipping costs are not included, and amount to approximately $15, which puts the total price at about $35 if a single unit is purchased.
Opportunities for the future of flexible boards
Despite its high price, the FlexiPi underlines the potential of flexible plates to revolutionize the sector. Its ability to adjust and adapt to different shapes and structures makes it an interesting option for developers who need to design solutions in limited spaces or with complex geometries.
Furthermore, its support for multiple SDKs and programming languages ​​ensures that this flexible board will be well received by the community of developers and electronics enthusiasts. Like other innovative products, its success will largely depend on market demand and how flexible PCB technology evolves in the coming years.
Ultimately, the FlexiPi is a solution designed for those looking for flexibility, not just in the physical sense, but also in terms of compatibility and capabilities. While its price may be an obstacle, its unique features and potential make this board an option worth considering for future projects.